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United States Department of Agriculture

Agricultural Research Service

Keith A Kohler
National Laboratory for Agriculture and the Environment
Agricultural Science Research Technician (Plants)

Phone: (515) 294-8240
Fax: (515) 294-8125
Room 224
2110 UNIVERSITY BOULEVARD
NLAE
AMES, IA, 50011-3120


Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Minimizing interspecific competition in soybean by optimizing cover crop self-seeding - (Peer Reviewed Journal)
Singer, J.W., Kohler, K.A., Meek, D.W. 2011. Minimizing interspecific competition in soybean by optimizing cover crop self-seeding. Agronomy Journal. 103(4):1186-1191.
Profitability of Cropping Systems Featuring Tillage and Compost - (Peer Reviewed Journal)
Singer, J.W., Chase, C.A., Kohler, K.A. 2010. Profitability of Cropping Systems Featuring Tillage and Compost. Agronomy Journal. 102(2):450-456.
Living Mulch Forage Yield and Botanical Composition in a Corn-Soybean-Forage Rotation - (Peer Reviewed Journal)
Singer, J.W., Kohler, K.A., Moore, K.J., Meek, D.W. 2009. Living Mulch Forage Yield and Botanical Composition in a Corn-Soybean-Forage Rotation. Agronomy Journal. 101(5):1249-1257.
Self-Seeding Winter Cereal Cover Crops in Soybean - (Peer Reviewed Journal)
Singer, J.W., Kohler, K.A., Mc Donald, P.B. 2007. Self-seeding winter cereal cover crops in soybean. Agronomy Journal. 99(1):73-79.
Effects of Living Mulches on Predator Abundance and Sentinel Prey in a Corn-Soybean-Forage Rotation - (Peer Reviewed Journal)
Prasifka, J.R., Schmidt, N.P., Kohler, K.A., O'Neal, M.E., Hellmich II, R.L., Singer, J.W. 2006. Effects of living mulches on predator abundance and sentinel prey in a corn-soybean-forage rotation. Environmental Entomology. 35(5):1423-1431.
Effect of Repeated Glyphosate Use on Weed Communities in a Soybean-Corn Rotation - (Peer Reviewed Journal)
Hartzler, R.G., Singer, J.W., Buhler, D.D., Kohler, K.A. 2006. Effect of repeated glyphosate use on weed communities in a soybean-corn rotation. Crop Management at www.cropmanagement.org.doi:10.1094/CM-2006-0308-01-RS.
Can the Addition of a Living Mulch to Soybean Improve Biological Control of Soybean Aphid? - (Abstract Only)
Schmidt, N.P., O'Neal, M., Singer, J.W., Kohler, K.A. 2005. Can the addition of a living mulch to soybean improve biological control of soybean aphid? [abstract]. Entomological Society of America Annual Meeting. Paper No. 0337.
Self-Seeding Small Grain Cover Crop Systems in a Soybean-Corn Rotation - (Abstract Only)
Singer, J.W., Kohler, K.A. 2005. Self-seeding small grain cover crop systems in a soybean-corn rotation [CD-ROM]. In: ASA-CSSA-SSSA Annual Meeting Abstracts, Nov. 6-10, 2005, Salt Lake City, UT.
Wheat Effect on Frost-Seeded Red Clover Cultivar Establishment and Yield - (Peer Reviewed Journal)
Singer, J.W., Casler, M.D., Kohler, K.A. 2006. Wheat effect on frost-seeded red clover cultivar establishment and yield. Agronomy Journal. 98:265-269.
Assessing Carabids Contribution to Ecosystem Services: Does It Matter If There Are More Beetles? - (Peer Reviewed Journal)
O'Neal, M.E., Prasifka, J.R., Schmidt, N.P., Singer, J.W., Hellmich II, R.L., Kohler, K.A. 2006. Assessing carabids contribution to ecosystem services: Does it matter if there are more beetles? American Entomologist. 51:231-233.
Rye Cover Crop Management Affects Grain Yield in a Soybean-Corn Rotation - (Peer Reviewed Journal)
Singer, J.W., Kohler, K.A., 2005. Rye cover crop management affects grain yield in a soybean-corn rotation. Available: www.cropmanagement.org. doi:10.1094/CM-2005-0224-02-RS.
Method and Timing of Rye Control Affects Soybean Development and Resource Utilization - (Peer Reviewed Journal)
Westgate, L.R., Singer, J.W., Kohler, K.A. 2005. Method and timing of rye control affects soybean development and resource utilization. Agronomy Journal. 97:806-816.
The Effect of Perennial Cover Crops on Natural Enemy Communities in Corn and Soybean - (Abstract Only)
Schmidt, N., Oneal, M., Singer, J.W., Kohler, K.A., Prasifka, J.R., Hellmich Ii, R.L. 2004. The effect of perennial cover crops on natural enemy communities in corn and soybean [abstract]. Entomological Society of America Annual Meeting. Poster No. D0081.
Method and Timing of Rye Control Affects Soybean Development and Resource Utilization - (Abstract Only)
Westgate, L.R., Singer, J.W., Kohler, K.A. 2004. Method and timing of rye control affects soybean development and resource utilization [CD-ROM]. Madison, WI. ASA-CSSA-SSSA Annual Meeting Abstracts.
Winter Wheat Effects on Establishment of Frost-Seeded Red Clover Cultivars - (Abstract Only)
Singer, J.W., Casler, M.D., Kohler, K.A. 2004. Winter wheat effects on establishment of frost-seeded red clover cultivars [CD-ROM]. ASA-CSSA-SSSA Annual Meeting Abstracts. Madison, WI.
Plant Density Interactions with Winter Small Grain/red Clover Intercrops - (Abstract Only)
Blaser, B.C., Gibson, L.R., Singer, J.W., Jannink, J.L., Kohler, K.A. 2004. Plant density interactions with winter small grain/red clover intercrops [CD-ROM]. ASA-CSSA-SSSA Annual Meeting Abstracts. Madison, WI.
Tillage and Compost Affect Yield of Corn, Soybean, and Wheat - (Abstract Only)
SINGER, J.W., KOHLER, K.A., LIEBMAN, M., RICHARD, T.L., CAMBARDELLA, C.A., BUHLER, D.D. TILLAGE AND COMPOST AFFECT YIELD OF CORN, SOYBEAN, AND WHEAT. ASA-CSSA-SSSA ANNUAL MEETING ABSTRACTS. 2003. CD-ROM. MADISON, WI.
Impacts of Composted Swine Manure on Weed and Corn Nutrient Uptake, Growth, and Seed Production - (Peer Reviewed Journal)
Liebman, M., Menalled, R.D., Buhler, D.D., Richard, T.L., Sundberg, D.N., Cambardella, C.A., Kohler, K.A. 2004. Impacts of composted swine manure on weed and corn nutrient uptake, growth, and seed production. Weed Science. 52:365-375.
Tillage and Compost Affect Yield of Corn, Soybean, and Wheat and Soil Fertility - (Peer Reviewed Journal)
SINGER, J.W., KOHLER, K.A., LIEBMAN, M., RICHARD, T.L., CAMBARDELLA, C.A., BUHLER, D.D. TILLAGE AND COMPOST AFFECT YIELD OF CORN, SOYBEAN, AND WHEAT AND SOIL FERTILITY. AGRONOMY JOURNAL. 2004. V. 96. P. 531-537.
Small Grain Cover Crops for Iowa - (Proceedings)
KASPAR, T.C., PARKIN, T.B., KOHLER, K.A. SMALL GRAIN COVER CROPS FOR IOWA. INTEGRATED CROP MANAGEMENT CONFERENCE PROCEEDINGS. 2001. P. 85-89.
Effects of Soil Disturbance Timing on Weed Emergence Patterns - (Abstract Only) - (16-Dec-99)
Weed Seedbanks and Seedling Emergence in Two Strip Intercropping/rotation Systems - (Peer Reviewed Journal) - (23-Aug-99)
Emergence and Early Growth of Smother Plants: Effects on Weed Suppression and Crop Yield - (Abstract Only) - (10-Dec-98)
Spring-Seeded Smother Plants for Weed Control in Corn and Soybean - (Peer Reviewed Journal) - (15-Jul-98)
Oat and Rye Overseeded into Soybean As Fall Cover Crops in the Upper Midwest - (Peer Reviewed Journal) - (07-Jul-98)
Influencing Weed Populations by Managing Competition with Cover and Smothercrop Systems - (Abstract Only) - (12-Dec-97)
Spring-Seeded Smother Plants for Weed Control in Corn and Soybean - (Abstract Only) - (20-Aug-97)
Oats Overseeded into Soybeans As a Fall Cover Crop - (Abstract Only) - (31-Jul-97)
Oats Overseeded into Soybean As a Fall Cover Crop - (Abstract Only) - (25-Apr-97)
Spring-Seeded Smother Plants for Weed Control in Corn and Soybean - (Abstract Only) - (14-Mar-97)
Oats Overseeded into Soybean As a Fall Cover Crop - (Abstract Only) - (14-Mar-97)
Tillage in the Absence of Light and Weed Emergence: Species Response and Application - (Abstract Only) - (06-Feb-97)
Annual Changes in Foxtail (Setaria SPP.) Seed, Caryopsis, and Embryo Germinability in the Soil Seed Bank - (Abstract Only) - (06-Feb-97)
Spring-Seeded Smother Plants for Weed Control in Corn and Soybean - (Abstract Only) - (12-Dec-96)
Oats Overseeded into Soybeans As a Fall Cover Crop - (Abstract Only) - (08-Nov-96)
Weed Emergence and Control in Strip Intercropping/rotation Systems - (Abstract Only) - (07-Dec-95)
Last Modified: 12/19/2014
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