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Subjects corn Remove constraint corn: corn Subjects nitrogen Remove constraint nitrogen: nitrogen
Displaying items 1 - 10 of 138 start over

1. Active Sensor Reflectance Measurements of Corn Nitrogen Status and Yield Potential

Description:
Includes references
Author:
Solari, F. , Shanahan, J. , Ferguson, R. , Schepers, J. , Gitelson, A.
Subject:
Zea mays , corn , plant nutrition , nitrogen , grain yield , remote sensing , sensors , reflectance , nutrient use efficiency , chlorophyll , spectral analysis , plant development , developmental stages , precision agriculture , variable rate application
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2008

2. Aerial photography to detect nitrogen stress in corn

Description:
Includes references
Author:
Blackmer, T.M. , Schepers, J.S.
Subject:
Zea mays , corn , plant nutrition , soil nutrients , nitrogen , nitrates , grain yield , aerial photography , nitrogen fertilizers , fertilizer application
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
1996

3. Agronomic responses of corn hybrids from different eras to deficit and adequate levels of water and nitrogen

Description:
Includes references
Author:
O'Neill, P.M. , Shanahan, J.F. , Schepers, J.S. , Caldwell, B.
Subject:
Zea mays , corn , hybrids , grain yield , agronomic traits , plant-water relations , water stress , soil water deficit , nitrogen , soil fertility , nutrient availability , genotype-environment interaction , nutrition-genotype interaction , Nebraska
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2004

4. Alfalfa Nitrogen Credit to First-Year Corn: Potassium, Regrowth, and Tillage Timing Effects

Description:
Includes references
Author:
Yost, Matt A. , Coulter, Jeffrey A. , Russelle, Michael P. , Sheaffer, Craig C. , Kaiser, Daniel E.
Subject:
Medicago sativa , Zea mays , alfalfa , corn , fertilizer rates , fertilizer use reduction , fine-textured soils , grain yield , nitrogen , nitrogen fertilizers , plants , potassium , prices , regrowth , silage , tillage , United States
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2012

5. Alternative Sources of N for Corn and Cotton and Ammonia Volatilization Losses

Author:
Mitchell, C.C. , Smith, K. , Watts, D. , Moore, D.
Subject:
corn , lint cotton , crop yield , urea fertilizers , nitrogen fertilizers , ammonia , volatilization , losses from soil , nitrogen , stabilizers , Alabama
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2010

6. An Active Sensor Algorithm for Corn Nitrogen Recommendations Based on a Chlorophyll Meter Algorithm

Description:
Includes references
Author:
Solari, Fernando , Shanahan, John F. , Ferguson, Richard B. , Adamchuk, Viacheslav I.
Subject:
Zea mays , corn , nitrogen , plant nutrition , nutritional status , canopy , sensors , reflectance , algorithms , chlorophyll , nitrogen fertilizers , fertilizer rates , mathematical models , equations , nitrogen balance , accuracy , model validation , grain yield , irrigated farming
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2010

7. An Algorithm for Corn Nitrogen Recommendations Using a Chlorophyll Meter Based Sufficiency Index

Description:
Includes references
Author:
Varvel, G.E. , Wilhelm, W.W. , Shanahan, J.F. , Schepers, J.S.
Subject:
Zea mays , corn , nitrogen , plant nutrition , nitrogen fertilizers , fertilizer requirements , nutrient use efficiency , chlorophyll , grain yield , cropping systems , cultivars , chemical constituents of plants , Nebraska
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2007

8. AnnAGNPS Model Application for Nitrogen Loading Assessment for the Future Midwest Landscape Study

Description:
Includes references
Author:
Yuan, Yongping , Mehaffey, Megan H. , Lopez, Ricardo , Bingner, Ronald L. , Bruins, Randy , Erickson, Caroline , Jackson, Michael A.
Subject:
nitrogen , pollution load , landscape ecology , ecosystem services , environmental models , crops , agricultural land , conservation areas , wetlands , lakes , streams , biofuels , nonpoint source pollution , watersheds , spatial data , simulation models , runoff , corn , Zea mays , crop rotation , Glycine max , conservation practices , water pollution , Illinois , Midwestern United States
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2011

9. Application of Molecular Markers in Breeding for Nitrogen Use Efficiency

Description:
In the special issue: Enhancing the efficiency of nitrogen utilization in plants / edited by S.S. Goyal, R. Tischner and A.S. Basra.
Author:
Agrama, H.A.
Subject:
plants , literature reviews , plant nutrition , nitrogen , nutrient use efficiency , plant breeding , artificial selection , selection criteria , genetic markers , biomarkers , dry matter accumulation , Zea mays , corn , grain yield , nutrient availability , marker-assisted selection , chromosome mapping , quantitative trait loci , plant morphology , agronomic traits , yield components
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005

10. Assessment of Vegetation Stress Using Reflectance or Fluorescence Measurements

Description:
Includes references
Author:
Campbell, P.K.E. , Middleton, E.M. , McMurtrey, J.E. , Corp, L.A. , Chappelle, E.W.
Subject:
plant stress , detection , remote sensing , corn , nitrogen , nutrient deficiencies , nutrient excess , soybeans , Glycine max , carbon dioxide , elevated atmospheric gases , ozone , air pollution , Acer rubrum , ultraviolet radiation , leaves , fluorescence , reflectance , spectral analysis , hyperspectral imagery , analytical methods , Zea mays
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2007