College of Agricultural Sciences Personnel Profile
Personnel Photo of Kenneth A Barbarick
Kenneth A Barbarick
Associate Dean of Academic Programs
Soil and Crop Sciences
College of Agricultural Sciences

Shepardson Building, Room
Phone:
970-491-6274
Education:
  • Ph D, Colorado State University; Agronomy
  • MS, University of Arizona; Soils
  • BS, University of Arizona; Soil and Water Science
Personal Website:
http://

Dr. Barbarick is responsible for academic curriculum and teaching. His research interests are land application/recycling of sewage biosolids, land application/recycling of other municipal and industrial wastes, soil amendments. He teaches the Introductory Soil Science course.

Barbarick, Kenneth A, McDaniel, Jacob Philip, (2016) "Application of anaerobically digested biosolids to dryland winter wheat" Colorado Agricultural Experiment Station TR16-4

Barbarick, Kenneth A, Ippolito, Jim, McDaniel, Jacob Philip, (2016) Path analyses of grain P, Zn, Cu, Fe, and Ni in a biosolids-amended dryland wheat agroecosystem Journal of Environmental Quality 45 1400-1404

Barbarick, Kenneth A, Ippolito, Jim, McDaniel, Jacob Philip, (2015) Uptake coefficients for biosolids-amended dryland winter wheat Journal of environmental quality 44 1 286–292

McDaniel, Jacob Philip, Butters, Gregory, Barbarick, Kenneth A, Stromberger, Mary E, (2015) Effects of Aporrectodea caliginosa on soil hydraulic properties and solute dispersivity Soil Science Society of America Journal 79 838-847

Barbarick, Kenneth A, McDaniel, Jacob Philip, (2015) "Application of anaerobically digested biosolids to dryland winter wheat" Colorado Agricultural Experiment Station

Barbarick, Kenneth A, McDaniel, Jacob Philip, (2015) "Biosolids application to no-till dryland crop rotations" Colorado Agricultural Experiment Station

Barbarick, Kenneth A, (2015) Uptake Coefficients for Biosolids-Amended Dryland Winter Wheat J. Environ. Qual. 44 286-292

Ippolito, Jim, Barbarick, Kenneth A, Brobst, RB, (2014) Copper and zinc speciation in a biosolids-amended, semiarid grassland soil Journal of environmental quality 43 5 1576–1584

Ippolito, James A, Barbarick, Kenneth A, Brobst, Robert B, (2014) Copper and Zinc Speciation in a Biosolids-Amended, Semiarid Grassland Soil Journal of Environmental Quality 43 1576-1584

Barbarick, Kenneth A, Ippolito, Jim, McDaniel, JP, Peterson, GA, others, , (2013) Regression modeling weather and biolsolids effects on dryland wheat yields in Eastern Colorado, 2001-2012 Colorado State University Agricultural Experiment Station

Barbarick, Kenneth A, Ippolito, Jim, McDaniel, Jacob Philip, Hansen, NC, Peterson, GA, (2013) Regression modeling weather and biosolids effects on dryland on dryland wheat yields in Eastern Colorado, 2011-2012 Colorado State University Technical Report 1–20

McDaniel, Jacob Philip, Stromberger, Mary E, Barbarick, Kenneth A, Cranshaw, Whitney S, (2013) Survival of Aporrectodea caliginosa and its effects on nutrient availability in biosolids amended soil Applied Ecology 71 1-6

Barbarick, Kenneth A, (2012) "Application of anaerobically digested biosolids to dryland winter wheat" Colorado Agricultural Experiment Station Technical Report TR12-8

Barbarick, Kenneth A, (2012) Biosolids application to no-till dryland agroecosystems Agic Ecosys Environ 150 72-81

Barbarick, Kenneth A, Ippolito, Jim, McDaniel, Jacob Philip, Hansen, NC, Peterson, GA, (2012) Biosolids application to no-till dryland agroecosystems Agriculture, ecosystems & environment 150 72–81

Ippolito, Jim, Barbarick, Kenneth A, McDaniel, JP, Peterson, GA, others, , (2012) Biosolids Application to No-Till Dryland Agroecosytems Agriculture, Ecosystems and Environment 150 72–81

Barbarick, Kenneth A, (2012) "Biosolids application to no-till dryland crop rotations" Colorado Agricultural Experiment Station Technical Report TR12-6

Barbarick, Kenneth A, (2012) "Drought Stress Affects Earthworms in a Biosolids Amended Colorado Soil" Soil Science Society of America Abstract 389-7

Barbarick, Kenneth A, (2011) A new Nitrogen Index to evaluate nitrogen losses in intensive forage systems in Mexico J Agic Ecosys Environ 142 352-364

Barbarick, Kenneth A, (2011) Accumulation of late-applied nitrogen and root dynamics during grain filling in irrigated spring wheat Comm Soil Sci Plant Anal 42 2235-2249

Barbarick, Kenneth A, (2011) "Application of anaerobically digested biosolids to dryland winter wheat" Colorado Agricultural Experiment Station Technical Report TR11-6

Barbarick, Kenneth A, (2011) "Biosolids application to no-till dryland crop rotations" Colorado Agricultural Experiment Station Technical Report TR11-5

Barbarick, Kenneth A, (2011) Drinking Water Treatment Residuals: A Review of Recent Uses J Environ Qual 40 12-Jan

Ippolito, Jim, Barbarick, Kenneth A, Elliott, HA, (2011) Drinking water treatment residuals: a review of recent uses Journal of Environmental Quality 40 1 1–12

Lerch, RN, Barbarick, Kenneth A, Sommers, Lee E, Westfall, Dwayne G, (2011) Stward, BA (eds.), Defining Soil Quality for a Sustainable Environment. Madison: Soil Science Society Special Publication, N 35. Dregne, HE, 1986. Desertification of arid lands. In El-Baz, F., and Hassan, MHA (eds.), Physics of Desertification. Dordrecht Encyclopedia of Agrophysics 207

Barbarick, Kenneth A, (2010) "Application of anaerobically digested biosolids to dryland winter wheat" Colorado Agricultural Experiment Station Technical Report TR10-5

Barbarick, Kenneth A, (2010) "Biosolids application to no-till dryland crop rotations" Colorado Agricultural Experiment Station Technical Report TR10-4

Barbarick, Kenneth A, (2010) Crossword puzzles as learning tools in Introductory Soil Science J Nat Res Life Sci Educ 39 145-149

Barbarick, Kenneth A, Ippolito, Jim, McDaniel, Jacob Philip, (2010) Fifteen years of wheat yield, N uptake, and soil nitrate–N dynamics in a biosolids-amended agroecosystem Agriculture, ecosystems & environment 139 1 116–120

Barbarick, Kenneth A, (2010) Fifteen years of wheat yield, N-uptake, and soil nitrate-N dynamics in a biosolids-amended agroecosystem J Agic Ecosys Environ 116-120

Barbarick, Kenneth A, (2010) Infrequent composted biosolids applications affect semi-arid grassland soils and vegetation J Environ Manage 91 1123-1130

Ippolito, Jim, Barbarick, Kenneth A, Paschke, MW, Brobst, RB, (2010) Infrequent composted biosolids applications affect semi-arid grassland soils and vegetation Journal of environmental management 91 5 1123–1130

Ippolito, Jim, Barbarick, Kenneth A, Paschke, Mark W, Brobst, RB, (2010) Infrequent composted biosolids applications affect semi-arid grassland soils and vegetation Journal of environmental management 91 5 1123–1130

Barbarick, Kenneth A, (2010) "Microbial biomass and nitrogen cycling as affected by A Trapezoides in a Colorado soil" Abstract 103-7

Ippolito, Jim, Barbarick, Kenneth A, (2010) Organic Waste Nitrogen and Phosphorus Dynamics Under Dryland Agroecosystems

Barbarick, Kenneth A, (2009) "Application of anaerobically digested biosolids to dryland winter wheat" Colorado Agricultural Experiment Station Technical Report TR09-3

Barbarick, Kenneth A, (2009) "Biosolids application to no- till dryland crop rotations" Colorado Agricultural Experiment Station Technical Report TR09-2

Barbarick, Kenneth A, (2009) Continuous biosolids application affects grain elemental concentrations in a dryland-wheat agroecosystem Agr Ecosyst Environ 129 340-343

Barbarick, Kenneth A, Ippolito, Jim, (2009) Continuous biosolids application affects grain elemental concentrations in a dryland-wheat agroecosystem Agriculture, ecosystems & environment 129 1 340–343

Barbarick, Kenneth A, (2009) Crossword puzzles as learning tools in Introductory Soil Science Agronomy Abstracts American Society of Agronomy Madison, WI; Paper #136-2

Barbarick, Kenneth A, (2009) Economic value of biosolids in a semi-arid agroecosystem Agron J 101 933-939

Ippolito, Jim, Barbarick, Kenneth A, Brobst, RB, (2009) Fate of biosolids Cu and Zn in a semi-arid grassland Agriculture, ecosystems & environment 131 3 325–332

Barbarick, Kenneth A, (2009) "Laboratory Manual for Introductory Soil Science" Tenth Edition Also in 1981, 1983, 1984,1991, 1994, 1996, 1999, 2003, 2007 Pearson Publishing Co, Boston, MA

Barbarick, Kenneth A, (2009) Selenium adsorption to aluminum-based water treatment residuals J Colloid Interf Sci 338 48-55

Ippolito, Jim, Scheckel, Kirk G, Barbarick, Kenneth A, (2009) Selenium adsorption to aluminum-based water treatment residuals Journal of colloid and interface science 338 1 48–55

Barbarick, Kenneth A, (2009) Use of a new GIS nitrogen index assessment tool for evaluation of nitrate leaching across a Mediterranean region J Hydrol 365 183-194

Ippolito, Jim, Barbarick, Kenneth A, Stromberger, ME, Paschke, Mark W, Brobst, RB, (2009) Water treatment residuals and biosolids long-term co-applications effects to semi-arid grassland soils and vegetation Soil Science Society of America Journal 73 6 1880–1889

Ippolito, Jim, Barbarick, Kenneth A, Stromberger, ME, Paschke, MW, Brobst, RB, (2009) Water treatment residuals and biosolids long-term co-applications effects to semi-arid grassland soils and vegetation Soil Science Society of America Journal 73 6 1880–1889

Barbarick, Kenneth A, (2008) Agronomy journal turns one hundred Agron J 100 8-Jan

Barbarick, Kenneth A, (2008) Agronomy Journal turns one hundred (reprinted from Agron J, vol 100, pg 1-8, 2008) Agron J 100 S19-S26

Barbarick, Kenneth A, (2008) "Application of anaerobically digested biosolids to dryland winter wheat" Colorado Agricultural Experiment Station Technical Report TR08-9

Barbarick, Kenneth A, Ippolito, Jim, Gourd, Thaddeus R, McDaniel, JP, (2008) Application of anaerobically digested biosolids to dryland winter wheat: 2006-2007 results Colorado State University Agricultural Experiment Station Technical Report TR08-09

Barbarick, Kenneth A, (2008) "Biosolids application to no- till dryland crop rotations" Colorado Agricultural Experiment Station Technical Report TR08-7

Barbarick, Kenneth A, Ippolito, Jim, Gourd, Thaddeus R, McDaniel, JP, (2008) Biosolids application to no-till dryland and crop rotations: 2006 results Colorado State University Agricultural Experiment Station Technical Report TR08-07

Freeman, CL, Ippolito, Jim, Stromberger, ME, Barbarick, Kenneth A, Redente, EF, (2008) "Biosolids use for reclaiming fluvial mine tailings" 417–437

Barbarick, Kenneth A, (2008) "Biosolids: A valuable fertilizer In Making Better Decisions 2007 Colorado Winter Wheat variety Performance Trials" Colorado Agricultural Experiment Station Technical Report TR08-8

Barbarick, Kenneth A, (2008) Fate of biosolids Cu and Zn in a semi-arid grassland Agr Ecosyst Environ 131 325-332

Barbarick, Kenneth A, (2008) Fate of Biosolids Trace Metals in a Dryland Wheat Agroecosystem J Environ Qual 37 2135-2144

Ippolito, Jim, Barbarick, Kenneth A, (2008) Fate of biosolids trace metals in a dryland wheat agroecosystem Journal of environmental quality 37 6 2135–2144

Barbarick, Kenneth A, (2008) "Laboratory Manual for Introductory Soil Science" Ninth Edition Pearson Publishing Co, Boston, MA(Previous 1981,1983, 1984,1991, 1994, 1996, 1999, 2003)

Barbarick, Kenneth A, (2008) "Lecture Notes for Introductory Soil Science" Ninth Edition Pearson Publishing Co, Boston, MA Also in 1981, 1984, 1989, 1991, 1993, 1997, 2000, 2004

Barbarick, Kenneth A, (2008) "Lecture Notes for Introductory Soil Science" Ninth Edition Pearson Publishing Co, Boston, MA (Previous editions 1981, 1984, 1989, 1991, 1993, 1997, 2000, 2004)

Barbarick, Kenneth A, (2008) "Lecture Notes for Introductory Soil Science" Ninth Edition Pearson Publishing Co, Boston, MA (Previous editions 1981, 1984,1989, 1991, 1993, 1997, 2000, 2004)

Barbarick, Kenneth A, (2008) New weighing method to measure shoot water interception Journal of Irrigation and Drainage Engineering (ASCE) 134 349-355

Barbarick, Kenneth A, (2008) Predicting soil-extractable Zn, P, Fe, and Cu in a biosolids-amended dryland wheat agroecosystem Soil Sci 173 175-185

Barbarick, Kenneth A, Ippolito, Jim, (2008) Predicting soil-extractable Zn, P, Fe, and Cu in a biosolids-amended dryland wheat agroecosystem Soil science 173 3 175–185

Barbarick, Kenneth A, (2008) "Selenium-Water Treatment Residual Adsorption and Characterization" GSA-ASA-CSSA- SSSA Abstracts: 707-1

Barbarick, Kenneth A, (2008) "The journal impact factor and the author h index: What are these mysterious numbers?" Crops, Soils, Agronomy News 53 2 11-Oct

Pearson, Calvin H, Ernst, Susan M, Barbarick, Kenneth A, Hatfield, Jerry L, Peterson, Gary A, Buxton, Dwayne R, (2008) Turns One Hundred Agronomy journal 100 1 1–8

Barbarick, Kenneth A, (2008) Water Treatment Residuals and Biosolids Co-applications Affect Phosphatases in a Semi-arid Rangeland Soil Commun Soil Sci Plan 39 2812-2826

Barbarick, Kenneth A, (2008) Water treatment residuals and biosolids coapplications affect semiarid rangeland phosphorus cycling Soil Sci Soc Am J 72 711-719

Bayley, RM, Ippolito, Jim, Stromberger, ME, Barbarick, Kenneth A, Paschke, Mark W, (2008) Water treatment residuals and biosolids coapplications affect semiarid rangeland phosphorus cycling Soil Science Society of America Journal 72 3 711–719

Bayley, RM, Ippolito, Jim, Stromberger, ME, Barbarick, Kenneth A, Paschke, MW, (2008) Water treatment residuals and biosolids coapplications affect semiarid rangeland phosphorus cycling Soil Science Society of America Journal 72 3 711–719

Barbarick, Kenneth A, (2008) Water Treatment Residuals and Biosolids Long-Term Co-Applications Effects to Semi-Arid Grassland Soils and Vegetation Soil Sci Soc Am J 73 1880-1889

Barbarick, Kenneth A, (2007) "Application of anaerobically digested biosolids to dryland winter wheat" Colorado Agricultural Experiment Station Technical Report TR07-12

Barbarick, Kenneth A, (2007) "Biosolids application to no-till dryland crop rotations" Colorado Agricultural Experiment Station Technical Report TR07-10

Barbarick, Kenneth A, (2007) Biosolids impact soil phosphorus accountability, fractionation, and potential environmental risk J Environ Qual 36 764-772

Barbarick, Kenneth A, (2007) "Biosolids impact soil phosphorus recovery, fractionation and potential risk" Agronomy Abstracts American Society of Agronomy Madison, WI; Paper #307-1

Barbarick, Kenneth A, (2007) "Effects of Long-Term Biosolids Application on soil carbon and nitrogen dynamics" Agronomy Abstracts American Society of Agronomy Madison, WI

Barbarick, Kenneth A, (2007) "Laboratory Manual for Introductory Soil Science" Tenth Edition Pearson Publishing Co, Boston, MA Prvious editions 1981, 1983, 1984, 1991, 1994, 1996, 1999, 2003, 2007)

Barbarick, Kenneth A, (2007) Nutrient assessment of a dryland wheat agroecosystem after 12 years of biosolids applications Agron J 99 715-722

Barbarick, Kenneth A, Ippolito, Jim, (2007) Nutrient assessment of a dryland wheat agroecosystem after 12 years of biosolids applications Agronomy journal 99 3 715–722

Hansen, NC, Peterson, GA, Barbarick, Kenneth A, Ippolito, Jim, McDaniel, JP, (2007) Regression modeling weather and biosolids: effects on dryalnd wheat yields in eastern Colorado, 2001-2012 Technical bul.(Colorado Agricultural Experiment Station); TB13-3

Ippolito, Jim, Stromberger, Mary E, Willett, Brittany, Barbarick, Kenneth A, Paschke, Mark W, (2007) Shifts in Shortgrass Steppe Soil Microbial Communities in Response to Biosolids and Water Treatment Residuals Co-Application.

Ippolito, Jim, Stromberger, Mary E, Willett, Brittany, Barbarick, Kenneth A, Paschke, Mark W, (2007) Shifts in Shortgrass Steppe Soil Microbial Communities in Response to Biosolids and Water Treatment Residuals Co-Application.

Barbarick, Kenneth A, (2006) "Application of anaerobically digested biosolids to dryland winter wheat" Colorado Agricultural Experiment Station Technical Report TR06-8

Barbarick, Kenneth A, (2006) Biosolids affect soil barium in a dryland wheat agroecosystem J Environ Qual 35 2333-2341

Barbarick, Kenneth A, (2006) "Biosolids application to no-till dryland crop rotations" Colorado Agricultural Experiment Station Technical Report TR06-7

Ippolito, Jim, Barbarick, Kenneth A, Norvell, Kate, (2006) Biosolids Impact Soil P Recovery, Fractionation, and Potential Environmental Risk.

Barbarick, Kenneth A, (2006) "Long-term composted biosolids affects rangeland soils and plants" Agronomy Abstracts American Society of Agronomy Madison, WI; Paper #127-8

Ippolito, Jim, Barbarick, Kenneth A, Paschke, Mark W, (2006) Long-Term Composted Biosolids Land Application Affects Rangeland Soils and Plants.

Ippolito, Jim, Barbarick, Kenneth A, Paschke, Mark W, (2006) Long-Term Composted Biosolids Land Application Affects Rangeland Soils and Plants.

Barbarick, Kenneth A, (2006) "Long-term water treatment residuals-biosolids co- application affects rangeland soils and plants" Agronomy Abstracts American Society of Agronomy Madison, WI; Paper #124-11

Barbarick, Kenneth A, (2006) "Municipal biosolids Their economic value in dryland winter wheat-fallow cropping rotation" J Soil Water Cons 61 3 191

Barbarick, Kenneth A, (2006) Phosphorus extraction methods for water treatment residual-amended soils Commun Soil Sci Plan 37 859-870

Ippolito, Jim, Barbarick, Kenneth A, (2006) Phosphorus Extraction Methods for Water Treatment Residual–Amended Soils Communications in soil science and plant analysis 37 05-06 859–870

Barbarick, Kenneth A, (2006) "Phosphorus release from water treatment residuals-biosolids co-amended soils" Agronomy Abstracts American Society of Agronomy Madison, WI; Paper #11- 1

Barbarick, Kenneth A, (2006) "Student Engagement Strategies for Introductory Soil Science"

Barbarick, Kenneth A, (2006) "Water residuals and biosolids: Effect of co-application on soil phosphorus" Awwa Research Foundation, Denver, CO 49

Ippolito, Jim, Stromberger, Mary E, Barbarick, Kenneth A, Bayley, Robin, (2006) "Water residuals and biosolids: effect of co-application on soil phosphorus" American Water Works Association

Barbarick, Kenneth A, (2005) "Amendment effects on pH and salt content of bauxite residue" Agronomy Abstracts American Society of Agronomy Madison, WI -Poster #141-5

Ippolito, Jim, Redente, Edward Francis, Barbarick, Kenneth A, (2005) Amendment effects on pH and salt content of bauxite residue Soil science 170 10 832–841

Barbarick, Kenneth A, (2005) Amendments affect pH and salt content of red mud Soil Sci 170 832-841

Barbarick, Kenneth A, (2005) An infiltration exercise for introductory soil science J Nat Res Life Sci Educ 34 72-76

Barbarick, Kenneth A, Ippolito, Jim, Butters, Gregory, Sorge, GM, (2005) An infiltration exercise for introductory soil science Journal of Natural Resources and Life Sciences Education 34 72

Barbarick, Kenneth A, (2005) "Application of anaerobically digested biosolids to dryland winter wheat" Colorado Agricultural Experiment Station Technical Report TR05-10

Barbarick, Kenneth A, (2005) "Biosolids application to no-till dryland crop rotations" Colorado Agricultural Experiment Station Technical Report TR05-6

Barbarick, Kenneth A, (2005) "Biosolids effect soil Ba in a dryland wheat agroecosystem" Agronomy Abstracts American Society of Agronomy Madison, WI - Poster #205-4

Barbarick, Kenneth A, Ippolito, Jim, Redente, Edward, (2005) Biosolids Effect Soil Ba in a Dryland Wheat Agroecosystem.

Barbarick, Kenneth A, (2005) Effects of potato-grain rotations on soil erosion, carbon dynamics and properties of rangeland sandy soils J Soil Till Res 81 227- 238

Barbarick, Kenneth A, (2005) "Long-term impacts of biosolids rangeland surface application on trace metal mobility and fate" Agronomy Abstracts American Society of Agronomy Madison, WI - Paper #35-5

Ippolito, Jim, Barbarick, Kenneth A, (2005) Long-Term Impacts of Biosolids Rangeland Surface Application on Trace Metal Mobility and Fate.

Barbarick, Kenneth A, (2005) "Manure, Compost, and Biosolids" Encyclopedia of Soil Science R Lal (ed) Marcel Dekker, Inc New York (Revised from 2002)

Bayley, Robin, Ippolito, Jim, Stromberger, Mary E, Barbarick, Kenneth A, (2005) Soil Organic Phosphorus Characterized by Indigenous Enzyme Assays.

Barbarick, Kenneth A, (2005) Soil properties affecting wheat yields following drilling-fluid application J Environ Qual 34 1687-1696

Bauder, Troy A, Barbarick, Kenneth A, Ippolito, Jim, Shanahan, JF, Ayers, PD, (2005) Soil properties affecting wheat yields following drilling-fluid application Journal of environmental quality 34 5 1687–1696

Barbarick, Kenneth A, (2005) "The effect of long-term water treatment residuals-biosolids co-application on native rangeland soil phosphorus-year 2" Agronomy Abstracts American Society of Agronomy Madison, WI - Paper #302-6

Bayley, Robin, Ippolito, Jim, Stromberger, Mary E, Barbarick, Kenneth A, (2005) The Effect of Long-Term Water Treatment Residuals-Biosolids Co-Applications on Native Rangeland Soil Phosphorus–Year 2.

Barbarick, Kenneth A, (2004) "An Infiltration Exercise for Introductory Soil Science" Agronomy Abstracts American Society of Agronomy Madison, WI

Barbarick, Kenneth A, (2004) "Application of anaerobically digested biosolids to dryland winter wheat" Colorado Agricultural Experiment Station Technical Report TR04-6

Barbarick, Kenneth A, (2004) "Biosolids application to no-till dryland crop rotations" Colorado Agricultural Experiment Station Technical Report TR04-4

Barbarick, Kenneth A, (2004) Biosolids applications affect runoff water quality following forest fire J Environ Qual 30 1528-1532

Barbarick, Kenneth A, (2004) Biosolids effects on microbial activity in shrubland and grassland soils Soil Sci 169 176-187

Barbarick, Kenneth A, Westfall, Dwayne G, (2004) "Biosolids Recycling" Colorado State University Cooperative Extension

Barbarick, Kenneth A, (2004) "Mobility and Fate of Metals in Long-Term biosolids Field Experiments" Agronomy Abstracts American Society of Agronomy Madison, WI

Barbarick, Kenneth A, (2004) "Soil organic phosphorus characterized by indigenous enzyme assays" Agronomy Abstracts American Society of Agronomy Madison, WI - Poster #207-18

Barbarick, Kenneth A, (2004) "The Effect of Long-Term Water Treatment Residuals-Biosolids Co- Applications on Native Rangeland Soil Phosphorus" Agronomy Abstracts American Society of Agronomy Madison, WI

Brobst, RB, Meyer, VF, Redente, EF, Barbarick, Kenneth A, Paschke, Mark W, Miller, AL, (2004) VEGATATION RESPONSES TO BIOSOLIDS APPLICATION FOLLOWING FOREST FIRE Proceedings of the Water Environment Federation 2004 1 182–190

Barbarick, Kenneth A, (2003) A simple C/N assay for Introductory Soil Science classes J Nat Res Life Sci Educ 32 69-72

Ippolito, Jim, Barbarick, Kenneth A, (2003) A Simple Carbon-Nitrogen Assay for Introductory Soil Science Classes Journal of Natural Resources and Life Sciences Education 32 69

Barbarick, Kenneth A, (2003) "Biosolids application to no-till dryland crop rotations" Colorado Agricultural Experiment Station Technical Report TR03-5

Barbarick, Kenneth A, Ippolito, Jim, Peterson, Gary A, (2003) "Biosolids application to no-till dryland crop rotations" Colorado State University, Agricultural Experiment Station

Barbarick, Kenneth A, (2003) "Can water treatment residuals adsorb selenium?" Agronomy Abstracts American Society of Agronomy Madison, WI

Barbarick, Kenneth A, Ippolito, Jim, (2003) Does the Number of Hours Studied Affect Exam Performance? Journal of Natural Resources and Life Sciences Education 32 32

Barbarick, Kenneth A, (2003) Does the number of hours studied affect exam performances? J Nat Res Life Sci Educ 32 32- 35

Barbarick, Kenneth A, (2003) "Getting the peers in peer review" Crops, Soils, Agronomy News 53 3 16

Barbarick, Kenneth A, (2003) Mass balances and relationships between carbon, nitrogen, and phosphorus in high altitude coarse sandy soils Agronomy Abstracts American Society of Agronomy

Barbarick, Kenneth A, (2003) Phosphorus retention mechanisms of a water treatment residual J Environ Qual 32 1857-1864

Ippolito, Jim, Barbarick, Kenneth A, Heil, DM, Chandler, JP, Redente, EF, (2003) Phosphorus retention mechanisms of a water treatment residual Journal of Environmental Quality 32 5 1857–1864

Barbarick, Kenneth A, (2003) "Soil organic matter - the missing piece of the productivity puzzle?" J Agric Res Econ 28 656

Barbarick, Kenneth A, (2003) Termination of sewage biosolids application affects wheat yield and other agronomic characteristics Agron J 95 1288-1294

Barbarick, Kenneth A, Ippolito, Jim, (2003) Termination of sewage biosolids application affects wheat yield and other agronomic characteristics Agronomy Journal 95 5 1288–1294

Barbarick, Kenneth A, (2003) "Use of handheld moisture-measuring devices in Introductory Soil Science" Agronomy Abstracts American Society of Agronomy Madison, WI

Barbarick, Kenneth A, (2002) "A simple C/N assay for Introductory Soil Science" American Society of Agronomy Madison, WI

Barbarick, Kenneth A, (2002) "Application of anaerobically digested biosolids to dryland winter wheat" Colorado Agricultural Experiment Station Technical Report TR02-5

Barbarick, Kenneth A, (2002) Combinations of water treatment residuals and biosolids affect two range grasses Commun Soil Sci Plan 33 831-844

Ippolito, Jim, Barbarick, Kenneth A, Redente, EF, (2002) Combinations of water treatment residuals and biosolids affect two range grasses Communications in soil science and plant analysis 33 5-6 831–844

Barbarick, Kenneth A, (2002) Does the number of hours studied affect exam performance? Agron Abstracts American Society of Agronomy Madison, WI

Meyer, Victor F, Collins, Ft, Redente, CO Edward F, Paschke, Mark W, Barbarick, Kenneth A, Ippolito, Jim, Brobst, CO Robert, (2002) "ECOSYSTEM RESPONSES TO BIOSOLIDS APPLICATION FOLLOWING FOREST FIRE"

Meyer, Victor F, Collins, Ft, Redente, CO Edward F, Paschke, Mark W, Barbarick, Kenneth A, Ippolito, Jim, Brobst, CO Robert, (2002) "ECOSYSTEM RESPONSES TO BIOSOLIDS APPLICATION FOLLOWING FOREST FIRE"

Barbarick, Kenneth A, (2002) "Phosphorus extraction methods from water treatment residual-amended soil" American Society of Agronomy Madison, WI

Barbarick, Kenneth A, (2002) Solution chemistry influence on metal mobility in biosolids-amended soils J Environ Qual 31 1157-1165

Barbarick, Kenneth A, (2002) "The impact of vegetative filter strips and water treatment residuals on phosphorus runoff" Agron Abstracts American Society of Agronomy Madison, WI

Barbarick, Kenneth A, (2002) "Water treatment residual and vegetative filter strip effects on phosphorus runoff dynamics" Agronomy Abstracts American Society of Agronomy Madison, WI

Barbarick, Kenneth A, (2001) "Application of anaerobically digested biosolids to dryland winter wheat" Colorado Agricultural Experiment Station Technical Report TR01-5

Meyer, VF, Redente, EF, Barbarick, Kenneth A, Brobst, R, (2001) Biosolids applications affect runoff water quality following forest fire Journal of Environmental Quality 30 5 1528–1532

Barbarick, Kenneth A, (2001) "Environmental management of biosolids and water treatment residuals" WEF/AWWA/CWEA Joint Residuals and Biosolids Management Conference Proceedings Biosolids 2001: "Building Public Support" proceedings Feb 21 25 San Diego, CA

Ippolito, Jim, Barbarick, Kenneth A, (2001) Environmental management of Biosolids and water treatment residuals Proceedings of the Water Environment Federation 2001 1 348–358

Barbarick, Kenneth A, (2001) Letter from the editor Agron J 92 189-189

Barbarick, Kenneth A, (2001) "Long term biosolids research on dryland wheat farms" WEF/AWWA/CWEA Joint Residuals and Biosolids Management Conference Proceedings Biosolids 2001: "Building Public Support" proceedings Feb 21 25 San Diego, CA

Stowe, Dennis W, Caudill, Charles J, Tallent, James E, Barbarick, Kenneth A, Ippolito, Jim, (2001) Long Term Biosolids Research on Dryland Wheat Farms Proceedings of the Water Environment Federation 2001 1 978–999

Barbarick, Kenneth A, (2001) Plant and soil responses to biosolids application following forest fire J Environ Qual 33 873-881

Barbarick, Kenneth A, (2001) "Water treatment residual phosphorus adsorption mechanisms" Agron Abstracts American Society of Agronomy Madison, WI

Barbarick, Kenneth A, (2001) "Wheat grain and soil changes following termination of sewage biosolids application" Colorado Agricultural Experiment Station Technical Bulletin TB01-1

Barbarick, Kenneth A, Ippolito, Jim, (2001) "Wheat grain and soil changes following termination of sewage biosolids application" Colorado State University, Agriculture Experiment Station

Barbarick, Kenneth A, (2000) "Application of anaerobically digested biosolids to dryland winter wheat" Colorado Agricultural Experiment Station Technical Report TR00-5

Barbarick, Kenneth A, (2000) From the editor Agron J 90 Vi-Vi

Barbarick, Kenneth A, (2000) Letter from the editor Agron J 90 Vi-Vi

Barbarick, Kenneth A, (2000) Modified nitric acid plant tissue digest method Commun Soil Sci Plan 31 2473-2482

Ippolito, Jim, Barbarick, Kenneth A, (2000) Modified nitric acid plant tissue digest method Communications in Soil Science & Plant Analysis 31 15-16 2473–2482

Barbarick, Kenneth A, (2000) Nitrogen fertilizer equivalency of sewage biosolids applied to dryland winter wheat J Environ Qual 29 1345-1351

Barbarick, Kenneth A, Ippolito, Jim, (2000) Nitrogen fertilizer equivalency of sewage biosolids applied to dryland winter wheat Journal of Environmental Quality 29 4 1345–1351

Barbarick, Kenneth A, (2000) "Phosphorus desorption from a water treatment residual" Agron Abstracts American Society of Agronomy Madison, WI 43

Barbarick, Kenneth A, (1999) "Application of anaerobically digested biosolids to dryland winter wheat" Colorado Agricultural Experiment Station Technical Report TR99-8

Barbarick, Kenneth A, (1999) Co-application effects of water treatment residuals and biosolids on two range grasses J Environ Qual 28 1644-1650

Ippolito, Jim, Barbarick, Kenneth A, Redente, EF, (1999) Co-application effects of water treatment residuals and biosolids on two range grasses Journal of environmental quality 28 5 1644–1650

Barbarick, Kenneth A, (1999) Drilling fluid effects on crop growth and iron and zinc availability J Environ Qual 28 744-749

Barbarick, Kenneth A, (1999) Other Items-From the Editor Agronomy Journal 91 1 VIII

Barbarick, Kenneth A, (1998) "Application of anaerobically digested biosolids to dryland winter wheat" Colorado Agricultural Experiment Station Technical Report TR98-4

Barbarick, Kenneth A, (1998) "Distribution of extractable trace elements in the soil profile after several years of biosolids application" Great Plains Soil Fertility Conference Proceedings Denver, CO 7

Barbarick, Kenneth A, (1998) Exam frequency comparison in Introductory Soil Science J Nat Resour Life Sci Educ 27 55-58

Barbarick, Kenneth A, Ippolito, Jim, Westfall, DG, (1998) Extractable trace elements in the soil profile after years of biosolids application Journal of Environmental Quality 27 4 801–805

Barbarick, Kenneth A, (1998) "Mineralization rates for repeated biosolids application" Agron. Abstracts. American Society of Agronomy

Barbarick, Kenneth A, (1998) Plant biomass and elemental changes in shrubland forages following biosolids application J Environ Qual 27 789-794

Ippolito, Jim, Barbarick, Kenneth A, Jepson, R, (1998) Technical ReDort TR08-4 I’

Barbarick, Kenneth A, (1997) "Application of anaerobically digested biosolids to dryland winter wheat" Colorado Agricultural Experiment Station Technical Report TR97-6

Barbarick, Kenneth A, Ippolito, Jim, Westfall, DG, (1997) Comments on “Biosolids Effect on Phosphorus, Copper, Zinc, Nickel, and Molybdenum Concentrations,” by KA Barbarick, JA Ippolito, and DG Westfall. J. Environ. Qual. 24: 608–611 (1995)—Reply Journal of Environmental Quality 26 1 323–323

Barbarick, Kenneth A, (1997) "Evaluating the impacts of applying biosolids and water treatment residuals to rangeland" Proceedings of the WEF/AWWA Joint Residuals/Biosolids Management Approaching 2000 Conference, Philadelphia, PA

Barbarick, Kenneth A, (1997) Extractable trace elements in the soil profile after years of biosolids application J Environ Qual 27 801-805

Barbarick, Kenneth A, (1997) "NH4HCO3-DTPA extractable trace elements to 150-cm depth in biosolids amended soils" Agron Abstracts American Society of Agronomy Madison, WI 31

Barbarick, Kenneth A, (1997) Sewage biosolids cumulative effects on extractable-soil and grain elemental concentrations J Environ Qual 26 1696-1702

Barbarick, Kenneth A, Ippolito, Jim, Westfall, DG, (1997) Sewage biosolids cumulative effects on extractable-soil and grain elemental concentrations Journal of environmental quality 26 6 1696–1702

Barbarick, Kenneth A, (1997) "Winter wheat response to biosolids (sewage sludge) additions" Making Better Decisions - 1996 Winter Wheat Variety Performance Trial Results Colorado Agricultural Experiment Station Technical Report TR97-7, J Johnson (ed)

Barbarick, Kenneth A, (1996) "Application of anaerobically digested biosolids to dryland winter wheat" Colorado Agricultural Experiment Station Technical Report TR96-6

Barbarick, Kenneth A, (1996) Distribution and mineralization of biosolids nitrogen applied to dryland wheat J Environ Qual 25 796-801

Barbarick, Kenneth A, Ippolito, Jim, Westfall, DG, (1996) Distribution and mineralization of biosolids nitrogen applied to dryland wheat Journal of environmental quality 25 4 796–801

Barbarick, Kenneth A, (1996) "Influence of drilling-mud on the growth of sorghum-sudangrass" Agron Abstracts American Society of Agronomy Madison, WI 26

Barbarick, Kenneth A, (1996) "Organic materials as nitrogen fertilizers" Colorado State University Cooperative Extension

Barbarick, Kenneth A, (1996) "Using organic materials as nitrogen fertilizers" Service-In-Action No 546, Colorado State University Cooperative Extension Service (Revision)

Barbarick, Kenneth A, (1995) "Alum sludge and biosolids co-application: Metal uptake by roots/shoots of western wheatgrass" Agron Abstracts American Society of Agronomy Madison, WI 35

Barbarick, Kenneth A, (1995) "Application of anaerobically digested biosolids to dryland winter wheat" Colorado Agricultural Experiment Station Technical Report TR95-4

Barbarick, Kenneth A, (1995) Biosolids Effect on Phosphorus, Copper, Zinc, Nickel, and Molybdenum Concentrations in Dryland Wheat J Environ Qual 24 608-611

Barbarick, Kenneth A, Ippolito, Jim, Westfall, DG, (1995) Biosolids effect on phosphorus, copper, zinc, nickel, and molybdenum concentrations in dryland wheat Journal of environmental quality 24 4 608–611

Barbarick, Kenneth A, (1995) "Eleven years of biosolids application to dryland winter wheat" Effects of Land Application of Biosolids in Arid and Semi-arid Environments 16-19 May 1995, Colorado State University 2.1-2.8

Eberl, DD, Barbarick, Kenneth A, Lai, TM, (1995) Influence of NH4-exchanged clinoptilolite on nutrient concentrations in sorghum-sudangrass Natural Zeolites 93 491–504

Barbarick, Kenneth A, (1995) Sewage-Sludge Application Effects on Runoff Water-Quality in a Semiarid Grassland J Environ Qual 24 112-115

Barbarick, Kenneth A, (1995) "The effect of biosolids application on native shortgrass prairie vegetation and soils" Effects of Land Application of Biosolids in Arid and Semi-arid Environments 16-19 May 1995, Colorado State University 3.1-3.10

Barbarick, Kenneth A, (1994) "Application of anaerobically digested biosolids to dryland winter wheat" Colorado Agricultural Experiment Station Technical Report TR94-6

Ippolito, Jim, Barbarick, Kenneth A, Jepson, Ron, (1994) "Application of anaerobically digested biosolids to dryland winter wheat" Colorado State University, Agricultural Experiment Station

Barbarick, Kenneth A, (1994) "Biosolids recycling on crop- and rangeland" Service-In-Action No 547 Colorado State University Extension Service

Barbarick, Kenneth A, Westfall, Dwayne G, (1994) "Biosolids Recycling on Crop-and Rangeland" Colorado State University Cooperative Extension

Barbarick, Kenneth A, (1994) "Co-application of alum and sewage sludge to blue grama and western wheatgrass" Agron Abstracts American Society of Agronomy Madison, WI 36

Barbarick, Kenneth A, (1994) "Co-application of alum and sewage sludge to blue grama and western wheatgrass" Agron Abstracts American Society of Agronomy Madison, WI 36

Barbarick, Kenneth A, (1994) "Fate and mineralization of biosolids N applied to dryland wheat" Agron Abstracts American Society of Agronomy Madison, WI 36

Barbarick, Kenneth A, (1994) "Undergraduate core curriculum in soil science" Agron Abstracts American Society of Agronomy Madison, WI 211

Barbarick, Kenneth A, (1994) "Using organic materials as nitrogen fertilizers" Service-In-Action No 546 Colorado State University, Extension Service (Revision)

Barbarick, Kenneth A, (1993) "Application of anaerobically digested sewage sludge to dryland winter wheat" Colorado Agricultural Experiment Station Technical Report TR93-5

Barbarick, Kenneth A, (1993) "Influence of NH4-exchanged clinoptilolite on nutrient concentrations in sorghum-sudangrass" Natural Zeolites >93 Occurrence, Properties, Use DW Ming and FA Mumpton (eds) International Committee on Natural Zeolites Brockport, NY 491-504

Barbarick, Kenneth A, (1993) L for rangelands Water Environment and Technology 5 10 56-60

Lerch, RN, Barbarick, Kenneth A, Azari, Parviz, Sommers, Lee E, Westfall, Dwayne G, (1993) Sewage sludge proteins: I. Extraction methodology Journal of environmental quality 22 3 620–624

Barbarick, Kenneth A, (1993) Sewage-Sludge Proteins, Extract Characterization J Environ Qual 22 625-629

Barbarick, Kenneth A, (1993) "The effect of sewage sludge application on native rangeland soils and vegetation: Fort Collins-Meadow Springs Ranch" Colorado Agricultural Experiment Station Technical Report TR93-6

Barbarick, Kenneth A, (1993) "Using organic materials as nitrogen fertilizers" Colorado State University Cooperative Extension

Barbarick, Kenneth A, (1993) Waste Management - Sewage-Sludge Proteins J Environ Qual 22 620-624

Barbarick, Kenneth A, (1992) An environmental issues in agronomy course J Natr Res and Life Sci Educ 21 61-63

Barbarick, Kenneth A, (1992) "Application of anaerobically digested sewage sludge to dryland winter wheat" Colorado Agricultural Experiment Station Technical Report TR92-5

Levy, DB, Barbarick, Kenneth A, Siemer, EG, Sommers, Lee E, (1992) Distribution and partitioning of trace metals in contaminated soils near Leadville, Colorado Journal of Environmental Quality 21 2 185–195

Barbarick, Kenneth A, (1992) Distribution and Partitioning of Trace-Metals in Contaminated Soils near Leadville, Colorado J Environ Qual 21 185-195

Barbarick, Kenneth A, Lerch, RN, Utschig, JM, Westfall, DG, Follett, RH, Ippolito, Jim, Jepson, R, McBride, TM, (1992) Eight years of application of biosolids to dryland winter wheat Colorado Agricultural Experiment Station Technical Bulletin TB92-1

Barbarick, Kenneth A, (1992) "Eight years of sewage sludge addition to dryland winter wheat" Colo Agric Exp Stn Bulletin TB92-1

Barbarick, Kenneth A, (1992) "Fate of sewage sludge nitrogen applied to soils" Colorado Agricultural Experiment Station Bulletin TB92-3

Lerch, RN, Barbarick, Kenneth A, Sommers, Lee E, Westfall, Dwayne G, (1992) Sewage sludge proteins as labile carbon and nitrogen sources Soil Science Society of America Journal 56 5 1470–1476

Barbarick, Kenneth A, (1992) Sewage-Sludge Proteins as Labile Carbon and Nitrogen-Sources Soil Sci Soc Am J 56 1470-1476

Barbarick, Kenneth A, (1992) "Undergraduate core curriculum in soil science" Soil Sci Soc Am Special Publication on Soil Science Education: Philosophy and Perspectives Soil Sci Soc Am Spec Pub 37 14-Jul

Barbarick, Kenneth A, (1991) "Application of anaerobically digested sewage sludge to dryland winter wheat" Technical Report TR91-5, Colorado Agricultural Experiment Station

Barbarick, Kenneth A, (1991) "Behavior of trace metals in mountain meadow soils" Proceedings of the Third Intermountain Meadow Symposium Colorado Agricultural Experiment Station Bulletin LTB 91-2, E G Siemer (Ed) 181-193

Sommers, Lee E, Barbarick, Kenneth A, Levy, D B, (1991) "Behavior of trace metals in mountain meadow soils" Agricultural Experiment Station, Colorado State University LTB91-2 181-194

Barbarick, Kenneth A, (1991) "Characterization of sludge proteins and their degradation products" Agron Abstracts 270

Barbarick, Kenneth A, (1991) "Extraction of sewage sludge proteins: Correlation to C and N mineralization of sludge-amended soil" Agron Abstracts 41

Barbarick, Kenneth A, (1991) "Municipal Waste as a fertilizer material" Proceedings of the Third Intermountain Meadow Symposium Colorado Agricultural Experiment Station Bulletin LTB91-1, EG Siemer (Ed) 173-180

Barbarick, Kenneth A, Sommers, Lee E, (1991) "Municipal waste as a fertilizer material" Agricultural Experiment Station, Colorado State University LTB91-2 181-194

Westfall, Dwayne G, Vaughan, B, Barbarick, Kenneth A, (1991) Nitrogen Fertility Program for Intensively Managed Dryland Winter Wheat1 Journal of Fertilizer Issues 7 5

Barbarick, Kenneth A, Eberl, DD, Lai, TM, (1991) "Pine Ridge Zeolite and Fort Hall Mill Shale P Effects on Sorghum-sudangrass" Colorado State University

Barbarick, Kenneth A, (1991) "Pine ridge zeolite and Fort Hall mill shale P effects on sorghum-sudangrass" Colo Agric Exp Stn Bulletin TB91-2

Barbarick, Kenneth A, (1991) POLYHALITE APPLICATION TO SORGHUM-SUDANGRASS AND LEACHING IN SOIL COLUMNS. Soil Science 151 2 159–166

Barbarick, Kenneth A, (1991) "Polyhalite as a potassium fertilizer" Agricultural Experiment Station, Department of Agronomy, Colorado State University 89 2

Barbarick, Kenneth A, (1990) "An environmental agronomy course" Agron Abstracts 3

Barbarick, Kenneth A, (1990) "Application of anaerobically digested sewage sludge to dryland wheat" Technical Report TR90-6, Colorado Agricultural Experiment Station

Barbarick, Kenneth A, (1990) Economics of N fertilization of dryland winter wheat J Prod Agric 3 324-328

Barbarick, Kenneth A, Lai, TM, Eberl, DD, (1990) Exchange fertilizer (phosphate rock plus ammonium-zeolite) effects on sorghum-sudangrass Soil Science Society of America Journal 54 3 911–916

Barbarick, Kenneth A, (1990) "Fall and spring N fertilization of dryland winter wheat" Proceedings of Great Plains Soil Fertility Workshop 2 99-104

Barbarick, Kenneth A, (1990) "Fertilizer cost calculations" Service-In-Action No 548 Colorado State University Extension Service (Revision)

Barbarick, Kenneth A, Westfall, Dwayne G, (1990) "Fertilizer cost calculations" Colorado State University Cooperative Extension

Barbarick, Kenneth A, (1990) "Heavy metal contamination in soils and plant species near Leadville, Colorado" Agronomy Abstracts 41

Westfall, Dwayne G, Vaughan, B, Barbarick, Kenneth A, others, , (1990) Nitrogen fertility program for intensively managed dryland winter wheat. Journal of Fertilizer Issues 7 1 1–5

Barbarick, Kenneth A, (1990) Nitrogen Fertility Program for Intensively Managed Dryland Winter-Wheat J Fert Issues 7 5-Jan

Vaughan, B, Westfall, Dwayne G, Barbarick, Kenneth A, (1990) Nitrogen rate and timing effects on winter wheat grain yield, grain protein, and economics Journal of Production Agriculture 3 3 324–328

Barbarick, Kenneth A, (1990) "Peer Review - Standards for the Disposal of sewage Sludge US EPA Proposed Rule 40 CFR Parts - 257 and 503, CSRS-USDA" Technical Committee W170

Vaughan, B, Barbarick, Kenneth A, Westfall, Dwayne G, Chapman, PL, (1990) Spring nitrogen fertilizer recommendation models for dryland hard red winter wheat Agronomy journal 82 3 565–571

Barbarick, Kenneth A, (1990) "Spring nitrogen recommendation model for intensively managed dryland winter wheat" Maximum Economic Yield Conference Proceedings, Denver, CO

Lerch, RN, Barbarick, Kenneth A, Westfall, Dwayne G, Follett, RH, McBride, TM, Owen, WF, (1990) Sustainable rates of sewage sludge for dryland winter wheat production II. Production and income Journal of Production Agriculture 3 1 66–71

Barbarick, Kenneth A, (1990) Sustainable Rates of Sewage-Sludge for Dryland Winter-Wheat Production 1 Soil-Nitrogen and Heavy-Metals J Prod Agric 3 60-65

Barbarick, Kenneth A, (1990) Sustainable Rates of Sewage-Sludge for Dryland Winter-Wheat Production 2 Production and Income J Prod Agric 3 66-71

Vaughan, B, Barbarick, Kenneth A, Westfall, Dwayne G, Chapman, PL, (1990) Tissue nitrogen levels for dryland hard red winter wheat Agronomy journal 82 3 561–565

Barbarick, Kenneth A, (1989) "Application of anaerobically digested sewage sludge to dryland winter wheat" Technical Report TR89-8, Colorado Agricultural Experiment Station

Barbarick, Kenneth A, (1989) Exchange Fertilizer (Phosphate Rock Plus Ammonium-Zeolite) Effects on Sorghum Sudangrass Soil Sci Soc Am J 54 911-916

Barbarick, Kenneth A, (1989) "Heavy metal contamination in soil and plant species of the Arkansas Valley near Leadville, Colorado" Technical Report TR89- 7, Colorado Agricultural Experiment Station

Levy, D B, Barbarick, Kenneth A, Siemer, E G, Sommers, Lee E, (1989) "Heavy metal contamination in soils and plant species of the Arkansas Valley near Leadville, Colorado" Colorado Agric. Expt. Sta. Tech. Rept. TR89-7

Barbarick, Kenneth A, (1989) Polyhalite Application to Sorghum-Sudangrass and Leaching in Soil Columns Soil Sci 151 159-166

Barbarick, Kenneth A, (1989) "Polyhalite as a potassium fertilizer" Technical Bulletin TB89-2, Colorado Agricultural Experiment Station

Barbarick, Kenneth A, (1989) Spring Nitrogen-Fertilizer Recommendation Models for Dryland Hard Red Winter-Wheat Agron J 82 565-571

Barbarick, Kenneth A, (1989) Spring-N Fertilization of Dryland Winter-Wheat J Fert Issues 4 73-78

Barbarick, Kenneth A, (1989) Tissue Nitrogen Levels for Dryland Hard Red Winter-Wheat Agron J 82 561-565

Barbarick, Kenneth A, (1988) "Agricultural and industrial applications of zeolites" Agronomy Abstracts 305

Barbarick, Kenneth A, (1988) "Application of anaerobically digested sewage sludge to dryland wheat" Technical Report, Colorado Agricultural Experiment Station TR88-8

Barbarick, Kenneth A, (1988) Effects of liquid and dry sewage sludges on the yield, nitrogen uptake and heavy metal content in corn Agronomic Luistana 43 287-307

Barbarick, Kenneth A, (1988) "Ion exchange fertilizers: controlled release of nutrients from mixtures of zeolite and phosphate rock" Agronomy Abstracts 306

Barbarick, Kenneth A, (1988) "Response of sorghum-sudangrass in soils amended with phosphate rock and zeolite (clinoptilolite)" Technical Bulletin, Colorado Agricultural Experiment Station TB 88-l

Barbarick, Kenneth A, Lai, TM, Eberl, Dennis D, (1988) Response of sorghum-sundangrass in soils amended with phosphate rock and NH4-exchanged zeolite (Clinoptilolite) Technical bulletin-Colorado State University, Agricultural Experiment Station (USA)

Barbarick, Kenneth A, (1988) Surveys evaluating Journal of Agronomic Education J Agron Educ L7 63-68

Barbarick, Kenneth A, (1988) "The influence of water treatment sludge on sorghum- sudangrass growth" Agronomy Abstracts 39

Barbarick, Kenneth A, (1988) "Using organic materials as nitrogen fertilizers" Service-In-Action No 546, Colorado State University Cooperative Extension Service (Revision)

Barbarick, Kenneth A, (1988) Water-Treatment Sludge Influence on the Growth of Sorghum-Sudangrass J Environ Qual 18 292-298

Barbarick, Kenneth A, (1987) "Application of anaerobically digested sewage sludge to dryland wheat" Technical Report 87-l0 Colorado Agricultural Experiment Station

Barbarick, Kenneth A, (1987) "Application of municipal sewage sludge to dryland winter wheat" Waste Management Conference - Focus on the West Proceedings Fort Collins, CO

Barbarick, Kenneth A, (1987) NH4HCO3-DTPA and DTPA extractions of sludge- amended soils J Environ Qual 16 125-130

Vaughan, B, Westfall, Dwayne G, Barbarick, Kenneth A, (1987) "Nitrogen Fertilization Timing Alternatives for Dryland Winter Wheat" Colorado State University

Barbarick, Kenneth A, (1987) "Nitrogen fertilization timing alternatives for dryland winter wheat" Technical Report 87-13 Colorado Agricultural Experiment Station

Barbarick, Kenneth A, (1987) "Spring N recommendation model for dryland winter wheat" Agronomy Abstracts 218

Russell, RE, Westfall, Dwayne G, Barbarick, Kenneth A, (1987) SPRING-N FERTILIZATION OF DRYLAND WINTER-WHEAT JOURNAL OF FERTILIZER ISSUES 4 2 73–78

Barbarick, Kenneth A, (1986) "A system to release nutrients through ion exchange: NH4-zeolite-phosphate rock" Agronomy Abstracts 205

Barbarick, Kenneth A, (1986) "Application of anaerobically digested sewage sludge to dryland winter wheat" Technical Report 86-9 Colorado Agricultural Experiment Station

Barbarick, Kenneth A, (1986) "Application of municipal sewage sludge to dryland winter wheat" Waste Management Conference - Focus on the West Fort Collins, CO

Barbarick, Kenneth A, (1986) "Constraints to land application of sewage sludge" In Utilization, Treatment, and Disposal of Waste on Land Soil Science Society of America Madison, WI

Sommers, Lee E, Barbarick, Kenneth A, (1986) "Constraints to land application of sewage sludge" Utilization, Treatment, and Disposal of Waste on Land 193–216

Barbarick, Kenneth A, (1986) Evaluating Crop Response - Liquid Sludge Vs Nitrogen-Fertilizer Biocycle 27 30-33

Russell, Ronald E, Westfall, Dwayne G, Barbarick, Kenneth A, (1986) "Fall and Spring Nitrogen Fertilization of Dryland Winter Wheat" Colorado State University Agricultural Experiment Station, Department of Agronomy

Barbarick, Kenneth A, (1986) "Fall and spring nitrogen fertilization of dryland winter wheat" Technical Report 86-8 Colorado State University Agricultural Experiment Station

Barbarick, Kenneth A, (1986) "Liquid sludge incorporation and nitrogen availability to dryland winter wheat" Technical Bulletin 86-2 Colorado Agricultural Experiment Station

Barbarick, Kenneth A, (1986) Liquid sludge incorporation and nitrogen availability to dryland winter wheat Agricultural Experiment Station, Department of Agronomy, Colorado State University

Barbarick, Kenneth A, (1986) Mineral Fertilizers Based on Ion-Exchange Abstr Pap Am Chem S 192 5-Fert

EBERL, DD, LAI, TM, Barbarick, Kenneth A, (1986) "MINERAL FERTILIZERS BASED ON ION-EXCHANGE" 192 5–FERT

Barbarick, Kenneth A, (1985) A Note-Taking Strategy for Introduction Soil Science Lectures Nacta J 29 73-74

Barbarick, Kenneth A, (1985) "Application of the liquid/anaerobically digested sewage sludge dryland winter wheat" Technical Report 85-6 Colorado State University Agricultural Experiment Station

Barbarick, Kenneth A, (1985) Computer assisted learning in Introductory Soil Science J Agron Educ 14 77-80

Barbarick, Kenneth A, (1985) "Experiences with detailed course objectives in Introductory Soil Science" NACTA Journal 24 3 41-42

Barbarick, Kenneth A, (1985) Experiences with Detailed Course Objectives in Introductory Soil Science Nacta J 24 41-42

Barbarick, Kenneth A, (1985) "Improving the presentation of the potential concept in Introductory Soil Science" Agronomy Abstract 1

Barbarick, Kenneth A, (1985) "Potassium fertilization of alfalfa grown on a soil high in potassium" Agron J; Reprinted in Potash Review 7(l2):l-8 77 442-445

Barbarick, Kenneth A, (1985) Potassium Fertilization of Alfalfa Grown on a Soil High in Potassium Agron J 77 442-445

Barbarick, Kenneth A, (1985) Potassium fertilization of alfalfa grown on a soil high in potassium Agronomy journal 77 3 442–445

Barbarick, Kenneth A, (1984) "Agronomic and horticultural uses of zeolites: A review" Zeo-Agriculture: Use of Natural Zeolites in Agriculture and Aquaculture W G Pond and F A Mumpton, eds Westview Press, Boulder, CO 93-103

Barbarick, Kenneth A, Pirela, HJ, (1984) Agronomic and horticultural uses of zeolites: a review Zeo-Agriculture: Use of Natural Zeolites in Agriculture and Aquaculture. Westview Press, Boulder, Colorado 93–103

Weber, MA, Barbarick, Kenneth A, Westfall, Dwayne G, (1984) Application of clinoptilolite to soil amended with municipal sludge Zeo-agriculture, use of natural zeolites in agriculture and aquaculture. 1st ed. Westview Press, Boulder, CO 263–271

Barbarick, Kenneth A, (1984) "Application of clinoptilolite to soil amended with sewage sludge" Zeo- Agriculture: Use of Natural Zeolites in Agriculture and Aquaculture W F Pond and F A Mumpton, eds Westview Press, Boulder, CO 263-271

Barbarick, Kenneth A, (1984) "Application of the liquid/anaerobically digested sewage sludge from Littleton/Englewood to dryland winter wheat in Bennett, Colorado, l982-83" Progress Report No l0, Colorado State University Agricultural Experiment Station

Barbarick, Kenneth A, (1984) "Computer assisted learning in Introductory Soil Science" Agronomy Abstracts 1

Barbarick, Kenneth A, (1984) Effect of Small-Scale Composting of Sewage-Sludge on Heavy-Metal Availability to Plants J Environ Qual 13 264-268

Barbarick, Kenneth A, (1984) "Sewage sludge vs nitrogen fertilization application on dryland winter wheat" Agronomy Abstracts 223-224

Barbarick, Kenneth A, (1984) "Use of clinoptilolite in combination with nitrogen fertilizer to increase plant growth" Zeo-Agriculture: Use of Natural Zeolites in Agriculture and Aquaculture W G Pond and F A Mumpton, eds Westview Press, Boulder, CO 113-124

Barbarick, Kenneth A, (1983) Ammonium Adsorption by a Zeolite in a Static and a Dynamic System J Environ Qual 12 549-552

Weber, MA, Barbarick, Kenneth A, Westfall, Dwayne G, (1983) Ammonium adsorption by a zeolite in a static and a dynamic system Journal of environmental quality 12 4 549–552

Barbarick, Kenneth A, (1983) "Application of anaerobically digested sewage sludge to dryland winter wheat" CSU Agronomy Research Report 15

Barbarick, Kenneth A, (1983) "Effects of composting sewage sludge on plant uptake of heavy metals" Agronomy Abstracts 34

Barbarick, Kenneth A, (1983) Errors in Calculating the Flux of Sodium in Soil Columns Soil Sci 136 9-Jan

Barbarick, Kenneth A, (1983) "Soil Fertility Laboratory Manual" University of Hawaii - Manoa

Barbarick, Kenneth A, (1982) Application of the Wastewater Effluent of a Rural-Community to a Mountain Meadow J Water Pollut Con F 54 70-76

Barbarick, Kenneth A, (1982) "Fertilizer cost calculations" Service-In-Action No 548 Colorado State University Extension Service

Barbarick, Kenneth A, (1982) "Using organic materials as nitrogen fertilizers" Service-In-Action No 546 Colorado State University, Extension Service

Barbarick, Kenneth A, (1981) "A modified nitric acid plant tissue digest" Agron Abstracts American Society of Agronomy Madison, WI 30

Barbarick, Kenneth A, (1981) "Irrigation with effluent from a mountain community" Water Forum '8l, American Society of Civil Engineers New York 1 624- 629

Barbarick, Kenneth A, (1981) "Nitrogen - its sources and transformation" Service-In-Action No 550 Colorado State University Extension Service

Barbarick, Kenneth A, (1981) "Nitrogen sources and transformations" Colorado State University Extension Service

Barbarick, Kenneth A, (1981) Soil Nitrate Analysis by Cadmium Reduction Commun Soil Sci Plan 12 79-89

Barbarick, Kenneth A, (1980) A soil temperature demonstration J Agron Educ 9 76-80

Barbarick, Kenneth A, (1980) Application of Sewage Effluent to Columns of a Mountain Meadow Soil - Errors in Calculating the Transport of Ionic Salts Sci Soc Am J 44 921-924

Barbarick, Kenneth A, (1979) "Application of sewage effluent to soil columns of a mountain meadow soil - errors in calculating the flux of sodium" Agronomy Abstracts 135

Barbarick, Kenneth A, (1979) Comparison of various methods of extracting soil water for determining ionic salts, sodium, and calcium content in soil columns Soil Sci Soc Am J 43 1053-1055

Barbarick, Kenneth A, (1978) Grade inflation at Colorado State University, The Department of Agronomy's opinion J Agron Educ 7 44-46

Barbarick, Kenneth A, (1977) "Grade inflation at Colorado State University? Department of Agronomy's opinion" Agronomy Abstracts 1

Barbarick, Kenneth A, (1977) "Land treatment of municipal sewage effluent at Hayden, Colorado" Colorado Water Resources Institute Technical Report No l7 Colorado State University, Fort Collins, CO

Barbarick, Kenneth A, (1976) Collecting and preparing micro, miniature, and macro soil profiles J Agron Educ 5 16-Sep

Barbarick, Kenneth A, (1976) Percolation test for septic tank suitability in southern Arizona soils J Soil and Water Cons 31 3 110-112

Barbarick, Kenneth A, (1974) "An evaluation of undergraduate and graduate instruction" Agronomy Abstracts 3

Barbarick, Kenneth A, (1974) "Percolation tests for septic tank suitability in southern Arizona soils" Agronomy Abstracts 164

Barbarick, Kenneth A, (1974) Use of undergraduate teaching assistants for basic soils instruction J Agron Educ 31 101-103

Barbarick, Kenneth A, (1974) "Water - the possible limit to Arizona's growth?" Land use Planning for Arizona, Arizona Academy Twenty- fourth Arizona Town Hall April 1974 52- 57, 58-61, 66-71

Barbarick, Kenneth A, (1900) Untitled Agron J 93 261-261