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Subjects corn Remove constraint corn: corn Year 2004 Remove constraint 2004: 2004
Displaying items 141 - 147 of 147 start over

141. Using multi-spectral imagery to evaluate corn grown under nitrogen and drought stressed conditions

Description:
Includes references
Author:
Osborne, S.L. , Schepers, J.S. , Schlemmer, M.R.
Subject:
Zea mays , corn , plant growth , grain yield , nitrogen content , biomass , spectral analysis , drought , water stress , plant stress
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2004

142. Using the late spring nitrate test to reduce nitrate loss within a watershed

Description:
Includes references
Author:
Jaynes, D.B. , Dinnes, D.L. , Meek, D.W. , Karlen, D.L. , Cambardella, C.A. , Colvin, T.S.
Subject:
watersheds , water pollution , pollution control , water quality , nitrate nitrogen , leaching , testing , tile drainage , surface water , chemical concentration , nitrogen fertilizers , fertilizer rates , application timing , Zea mays , corn , grain yield , statistical models , Iowa
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2004

143. Watershed-scale assessment of soil quality in the loess hills of southwest Iowa

Description:
In the special issue: Soil quality as an indicator of sustainable tillage practices / edited by D.L. Karlen.
Author:
Cambardella, C.A. , Moorman, T.B. , Andrews, S.S. , Karlen, D.L.
Subject:
soil quality , soil biological properties , soil chemical properties , soil physical properties , spatial distribution , ridge tillage , conventional tillage , long term effects , loess soils , silt loam soils , corn soils , continuous cropping , corn , Zea mays , hills , landforms , watersheds , Iowa
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2004

144. Weed seedbank dynamics in three organic farming crop rotations

Description:
Includes references
Author:
Teasdale, J.R. , Mangum, R.W. , Radhakrishnan, J. , Cavigelli, M.A.
Subject:
weeds , buried seeds , Amaranthus hybridus , Chenopodium album , organic production , crop rotation , Zea mays , corn , Glycine max , soybeans , Triticum aestivum , wheat , Trifolium pratense , Dactylis glomerata , forage grasses , cropping sequence , plant density , Maryland
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2004

145. Yield increases during the organic transition: improving soil quality or increasing experience?

Description:
Includes references
Author:
Martini, E.A. , Buyer, J.S. , Bryant, D.C. , Hartz, T.K. , Denison, R.F.
Subject:
Solanum lycopersicum var. lycopersicum , tomatoes , Zea mays , corn , crop production , organic production , soil fertility , nitrogen , soil microorganisms , biological activity in soil , mineralization , soil quality
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2004

146. Yield Variability as Influenced by Climate: A Statistical Investigation

Description:
Includes references
Author:
Chen, Chi-Chung , McCarl, Bruce A. , Schimmelpfennig, David E.
Subject:
climate change , crop yield , analysis of variance , corn , grain sorghum , soybeans , wheat , precipitation , temperature , mathematics and statistics , United States
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2004

147. Zone herbicide application controls annual weeds and reduces residual herbicide use in corn. [Erratum: 2005 Jan-Feb, v. 53, no.1, p. 138.]

Description:
Includes references
Author:
Donald, W.W. , Archer, D. , Johnson, W.G. , Nelson, K.
Subject:
Zea mays , corn , Setaria (Poaceae) , Amaranthus , weed control , atrazine , clopyralid , flumetsulam , glufosinate , metolachlor , application rate , band placement , spraying , Setaria faberi , Missouri
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2004