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1. Charcoal carbon in U.S. agricultural soils

Description:
Includes references
Author:
Skjemstad, J.O. , Reicosky, D.C. , Wilts, A.R. , McGowan, J.A. , Soil Science Society of America.
Subject:
agricultural soils , charcoal , carbon , particle size , soil organic matter , silt loam soils , clay soils , clay loam soils , Minnesota , Illinois , Texas , Oregon
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2002

2. Estimating hydraulic properties of a fine-textured soil using a disc infiltrometer

Description:
Includes references
Author:
Schwartz, R.C. , Evett, S.R. , Soil Science Society of America.
Subject:
infiltrometers , mathematical models , agricultural soils , grassland soils , pastures , soil water retention , soil water content , subsoil , no-tillage , Richards' equation , Texas
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2002

3. State-space description of field heterogeneity: water and nitrogen use in cotton

Description:
Includes references
Author:
Li, H. , Lascano, R.J. , Booker, J. , Wilson, L.T. , Bronson, K.F. , Segarra, E. , Soil Science Society of America.
Subject:
Gossypium hirsutum , fields , spatial variation , soil water content , altitude , topography , irrigation , nitrogen fertilizers , nitrogen , nutrient uptake , soil fertility , irrigation scheduling , crop yield , clay fraction , sand fraction , application rate , Texas
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2002