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Authors Karlen, D.L. Remove constraint Karlen, D.L.: Karlen, D.L. Authors Cambardella, C.A. Remove constraint Cambardella, C.A.: Cambardella, C.A. Year 2004 Remove constraint 2004: 2004

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1. Challenges of managing liquid swine manure

Description:: Includes references
Author:: Karlen, D.L. , Cambardella, C.A. , Kanwar, R.S.
Subject:: pig manure , liquid manure , animal manure management , land application , application rate , phosphorus , potassium , nitrogen , soil fertility , leaching , nutrient balance , tile drainage , crop rotation , Zea mays , corn , Glycine max , soybeans , soil nutrients , Iowa
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2004

2. Quantification of tillage and landscape effects on soil carbon in small Iowa watersheds

Description:: In the special issue: Soil quality as an indicator of sustainable tillage practices / edited by D.L. Karlen.
Author:: Moorman, T.B. , Cambardella, C.A. , James, D.E. , Karlen, D.L. , Kramer, L.A.
Subject:: ridge tillage , discing , plowing , soil erosion , soil quality , soil organic matter , carbon , spatial distribution , slope , landscape position , loess , sediment transport , soil water , agricultural watersheds , Iowa
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2004

3. The soil management assessment framework: a quantitative soil quality evaluation method

Description:: Includes references
Author:: Andrews, S.S. , Karlen, D.L. , Cambardella, C.A.
Subject:: soil management , soil quality , soil types , land use , climatic factors , quantitative analysis , case studies , Georgia , Iowa , California , Oregon , Washington , Idaho
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2004

4. Using the late spring nitrate test to reduce nitrate loss within a watershed

Description:: Includes references
Author:: Jaynes, D.B. , Dinnes, D.L. , Meek, D.W. , Karlen, D.L. , Cambardella, C.A. , Colvin, T.S.
Subject:: watersheds , water pollution , pollution control , water quality , nitrate nitrogen , leaching , testing , tile drainage , surface water , chemical concentration , nitrogen fertilizers , fertilizer rates , application timing , Zea mays , corn , grain yield , statistical models , Iowa
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2004

5. Watershed-scale assessment of soil quality in the loess hills of southwest Iowa

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