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Subjects field crops Remove constraint field crops: field crops
Displaying items 1 - 10 of 233 start over

1. 2002 Farm Bill base and yield options decisions made by cotton producers

Description:
Conference held January 5-9, 2004, San Antonio, TX.
Author:
Neff, S.A.
Subject:
government payments , cotton , Gossypium hirsutum , Farm Bill , Farm Service Agency , governmental programs and projects , field crops , United States
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2004

2. A comparison of empirical and neural network approaches for estimating corn and soybean leaf area index from Landsat ETM+ imagery

Description:
Includes references
Author:
Walthall, Charles , Dulaney, Wayne , Anderson, Martha , Norman, John , Fang, Hongliang , Liang, Shunlin
Subject:
leaf area index , estimation , Landsat , image analysis , methodology , field crops , mathematical models , vegetation cover , reflectance , equations
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2004

3. A comparison of operational remote sensing-based models for estimating crop evapotranspiration

Description:
Includes references
Author:
Gonzalez-Dugo, M.P. , Neale, C.M.U. , Mateos, L. , Kustas, W.P. , Prueger, J.H. , Anderson, M.C. , Li, F.
Subject:
evapotranspiration , soil-plant-atmosphere interactions , remote sensing , models , reflectance , energy balance , estimation , equations , field crops , agricultural soils , canopy , temperature , water stress , Glycine max , soybeans , accuracy , simulation models , mathematical models , surface temperature , heat transfer , soil water content , rhizosphere , soil-atmosphere interactions , Zea mays , corn , grain crops , dryland farming , satellites , plant stress , vegetation , meteorological parameters , Iowa
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2009

4. 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

5. A Fungal Symbiont of Plant-Roots Modulates Mycotoxin Gene Expression in the Pathogen Fusarium sambucinum

Description:
Includes references
Author:
Ismail, Youssef , McCormick, Susan , Hijri, Mohamed
Subject:
field crops , on-farm food safety , plant pathogenic fungi , Gibberella pulicaris , Solanum tuberosum , virulence , greenhouse experimentation , symbiosis , symbionts , roots , biosynthesis , trichothecenes , gene expression , mycorrhizal fungi , Glomus , plant nutrition , minerals , nutrient uptake , soil-borne diseases
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2010

6. A three-camera multispectral digital video imaging system

Description:
Includes references
Author:
Everitt, J.H. , Escobar, D.E. , Cavazos, I. , Noriega, J.R. , Davis, M.R.
Subject:
field crops , agricultural land , rangelands , video cameras , remote sensing , multispectral imagery , microcomputers
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
1995

7. A weighing lysimeter for developing countries

Description:
Includes references
Author:
Schneider, A.D. , Howell, T.A. , Moustafa, A.T.A. , Evett, S.R. , Abou-Zeid, W.
Subject:
lysimeters , evapotranspiration , measurement , grasses , grassland soils , Medicago sativa , alfalfa , field crops , mathematics and statistics , equations , equipment design , Texas , Egypt
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
1996

8. Adoption and yields of improved bean varieties in Honduras.

Author:
Martel, P. , Bernsten, R.
Subject:
plants , plant cultural practices , field crops , crop production , agronomy , plant genetics , plant breeding
Physical description:
p. 138-139.
Collection:
Reports of Bean Improvement Cooperative and National Dry Bean Council Research Conference
Series:
Annual report.
Part Of:
Annual report. 1996. v. 39

9. Aerodynamic properties of partial canopies

Description:
Includes references
Author:
Hatfield, J.L.
Subject:
canopy , field crops , Gossypium hirsutum , cotton , vegetation cover , aerodynamics , temporal variation , growing season , roughness , length , height , leaf area index , correlation
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
1989

10. Aerodynamic transport body for distribution of biological agents

Description:
Includes references
Author:
Carter, L.M. , Chesson, J.H. , Penner, J.V.
Subject:
field crops , plant pests , insect pests , insect control , biological control , predatory arthropods , predatory insects , application methods , spraying , aerodynamics , sprayers , design , biodegradability , patents , USDA , United States
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
1999