Search National Agricultural Library Digital Collections
Displaying items
2,751 - 2,760 of
2,804
start over
- Description:
- Includes references
- Author:
- Austin, Amy T. , Yahdjian, Laura , Stark, John M. , Belnap, Jayne , Porporato, Amilcare , Norton, Urszula , Ravetta, Damian A. , Schaeffer, Sean M.
- Subject:
- biogeochemical cycles , soil-atmosphere interactions , soil respiration , wet-dry cycles , carbon , nitrogen , mineralization , soil texture , arid zones , semiarid zones , soil fauna , soil microorganisms , carbon nitrogen ratio
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 2004
- Description:
- Includes references
- Author:
- White, K.L. , Haggard, B.E. , Chaubey, I.
- Subject:
- rivers , water pollution , nonpoint source pollution , stream flow , runoff , water quality , pollution load , nutrients , nitrogen , phosphorus , coliform bacteria , Escherichia coli , Streptococcus , sediment yield , longitudinal studies , Arkansas
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 2004
- Description:
- Includes references
- Author:
- Harmel, R.D. , Torbert, H.A. , Haggard, B.E. , Haney, R. , Dozier, M.
- Subject:
- water pollution , agricultural watersheds , pastures , agricultural runoff , poultry manure , fertilizer application , fertilizer rates , water quality , chemical concentration , nitrogen , phosphorus , pollution load , Texas
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 2004
- Description:
- Includes references
- Author:
- Morgan, J.A. , Pataki, D.E. , Korner, C. , Clark, H. , Del Grosso, S.J. , Grunzweig, J.M. , Knapp, A.K. , Mosier, A.R. , Newton, P.C.D. , Niklaus, P.A. , Nippert, J.B. , Nowak, R.S. , Parton, W.J. , Polley, H.W. , Shaw, M.R.
- Subject:
- plant-water relations , elevated atmospheric gases , carbon dioxide , greenhouse gases , grasslands , prairies , steppes , pastures , deserts , soil water content , stomata , ecosystems , humidity , plant response , global change , leaves , gas exchange , plants , plant communities , plant growth , evapotranspiration , species differences , photosynthesis
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 2004
- Description:
- Includes references
- Author:
- Adachi, K. , Inoue, M. , Kanayama, K. , Rowell, R.M. , Kawai, S.
- Subject:
- Cryptomeria japonica , wood veneer , wood processing , pressing , water , moisture content , laminated veneer lumber , glulam , density , deformation , bending strength , modulus of elasticity , thickness
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 2004
- Description:
- Includes references
- Author:
- Pikul, J.L. Jr. , Aase, J.K. , Cochran, V.L.
- Subject:
- Avena sativa , oats , Pisum sativum , peas , Lens culinaris , lentils , hay , green manures , alternative crops , crop rotation , biomass , dry matter accumulation , semiarid zones , crop production , soil water , water use , loam soils , Argiustolls , nutritive value , neutral detergent fiber , acid detergent fiber , Montana , Great Plains region
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 2004
- Description:
- Includes references
- Author:
- Sharratt, B.S. , Gesch, R.W.
- Subject:
- Cuphea , root growth , root systems , plant-water relations , sowing date , row spacing , plant density , dry matter accumulation , crop yield , seeds , oil crops , Minnesota
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 2004
- Description:
- Includes references
- Author:
- Cosh, Michael H. , Jackson, Thomas J. , Bindlish, Rajat , Prueger, John H.
- Subject:
- watersheds , soil water content , temporal variation , spatial variation , satellites , remote sensing , radiometry , correlation , Iowa
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 2004
- 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
- Description:
- Includes references
- Author:
- Gillham, J.H. , Hild, A.L. , Johnson, J.H. , Hunt, E.R. Jr. , Whitson, T.D.
- Subject:
- Hyoscyamus niger , Lepidium draba subsp. draba , Lepidium latifolium , Euphorbia esula , Centaurea stoebe subsp. micranthos , arid lands , rangelands , weeds , invasive species , prediction , models , geographic information systems , model validation , accuracy , Wyoming
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 2004