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Subjects Zea mays Remove constraint Zea mays: Zea mays Subjects fertilizer requirements Remove constraint fertilizer requirements: fertilizer requirements
Displaying items 1 - 10 of 25 start over

1. A classification system for factors affecting crop response to nitrogen fertilization

Description:
Includes references
Author:
Lory, J.A. , Russelle, M.P. , Randall, G.W.
Subject:
Zea mays , continuous cropping , crop rotation , nitrogen fertilizers , crop yield , edaphic factors , temporal variation , dry matter accumulation , soil fertility , nitrogen , application rate , fertilizer requirements , cropping sequence , Minnesota
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
1995

2. A comparison of two nitrogen credit methods: traditional vs. difference

Description:
Includes references
Author:
Lory, J.A. , Russelle, M.P. , Peterson, T.A.
Subject:
nitrogen fertilizers , estimation , accuracy , crop rotation , continuous cropping , Zea mays , field crops , legumes , cover crops , Trifolium incarnatum , Glycine max , crop yield , fertilizer requirements , application rate , grains
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
1995

3. Ability for In-Season Correction of Nitrogen Deficiency in Corn Using Chlorophyll Meters

Description:
Includes references
Author:
Varvel, G.E. , Schepers, J.S. , Francis, D.D.
Subject:
meters (equipment) , Zea mays , nutrient deficiencies , soil nutrients , nitrogen , plant nutrition , chlorophyll , fertilizer application , fertilizer requirements , growing season , monitoring , grain yield , crop rotation , hybrids , nutrient management
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
1997

4. 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

5. Analysis of aerial photography for nitrogen stress within corn fields

Description:
Includes references
Author:
Blackmer, T.M. , Schepers, J.S. , Varvel, G.E. , Meyer, G.E.
Subject:
Zea mays , nitrogen fertilizers , nutrient availability , soil heterogeneity , aerial photography , nitrogen , nutrient deficiencies , crop yield , correlation , application rate , fertilizer requirements , variable rate application
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
1997

6. Chlorophyll meter and stalk nitrate techniques as complementary indices for residual nitrogen

Description:
Includes references
Author:
Varvel, G.E. , Schepers, J.S. , Francis, D.D.
Subject:
Zea mays , Glycine max , continuous cropping , crop rotation , nitrogen fertilizers , optimization , residual effects , soil , nitrogen content , stems , nitrate nitrogen , chlorophyll , nitrogen , nutrient availability , hybrids , application rate , fertilizer requirements , chemical constituents of plants , Nebraska
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
1997

7. Corn response to late-spring nitrogen management in the Walnut Creek watershed

Description:
Includes references
Author:
Karlen, D.L. , Dinnes, D.L. , Jaynes, D.B. , Hurburgh, C.R. , Cambardella, C.A. , Colvin, T.S. , Rippke, G.R.
Subject:
Zea mays , corn , grain crops , nitrogen fertilizers , soil fertility , nutrient management , nitrate nitrogen , drainage , losses from soil , fertilizer rates , crop models , fertilizer requirements , chlorophyll , plant nutrition , nutrient content , nitrates , grain yield , crop quality , Iowa
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005

8. Corn yield response to nitrogen rate and timing in sandy irrigated soils

Description:
Includes references
Author:
Gehl, R.J. , Schmidt, J.P. , Maddux, L.D. , Gordon, W.B.
Subject:
Zea mays , corn , grain crops , grain yield , nitrogen fertilizers , fertilizer rates , application timing , sandy soils , irrigated soils , leaching , nitrates , fertilizer requirements , nutrient availability , risk reduction , groundwater contamination , Kansas
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005

9. Defining yield goals and management zones to minimize yield and nitrogen and phosphorus fertilizer recommendation errors

Description:
Includes references
Author:
Chang, J.Y. , Clay, D.E. , Carlson, C.G. , Reese, C.L. , Clay, S.A. , Ellsbury, M.M.
Subject:
precision agriculture , Glycine max , soybeans , Zea mays , corn , crop rotation , grain yield , geographic information systems , fields , agricultural soils , electrical conductivity , soil fertility , fertilizer requirements , phosphorus , phosphorus fertilizers , nitrogen , nitrogen fertilizers , fertilizer application , topography , landscapes , South Dakota
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2004

10. Developing Nitrogen Fertilizer Recommendations for Corn Using an Active Sensor

Description:
Includes references
Author:
Dellinger, Adam E. , Schmidt, John P. , Beegle, Doug B.
Subject:
Zea mays , corn , grain crops , nitrogen fertilizers , fertilizer rates , plant nutrition , fertilizer requirements , fertilizer use reduction , remote sensing , nutritional status , reflectance , ammonium nitrate , animal manures , nutrient availability , nitrogen , application timing , nutrient management , Pennsylvania
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2008