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Year 2004 Remove constraint 2004: 2004 Subjects crop yield Remove constraint crop yield: crop yield Subjects alfalfa Remove constraint alfalfa: alfalfa

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1. Bulk density as a soil quality indicator during conversion to no-tillage

Description:: In the special issue: Soil quality as an indicator of sustainable tillage practices / edited by D.L. Karlen.
Author:: Logsdon, S.D. , Karlen, D.L.
Subject:: no-tillage , ridge tillage , conventional tillage , soil quality , soil compaction , bulk density , soil water content , loess soils , crop management , continuous cropping , crop rotation , corn , Zea mays , soybeans , Glycine max , alfalfa , Medicago sativa , crop yield , landscape position , agricultural watersheds , Iowa
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2004

2. Forage production of sainfoin across an irrigation gradient

Description:: Includes references
Author:: Peel, M.D. , Asay, K.H. , Johnson, D.A. , Waldron, B.L.
Subject:: Onobrychis viciifolia , forage legumes , forage crops , crop yield , irrigation , irrigation rates , water use efficiency , pasture management , cultivars , Medicago sativa , alfalfa , genotype-environment interaction , plant growth , phenology , Utah
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2004

3. Morphological variation of Medicago sativa subsp. falcata genotypes and their hybrid progeny

Description:: Includes references
Author:: Riday, H. , Brummer, E.C.
Subject:: Medicago sativa subsp. falcata , Medicago sativa , plant morphology , plant development , plant growth , agronomic traits , crop yield , hybridization , plant breeding , heterosis , genotype , germplasm , alfalfa
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2004

4. Performance of intersubspecific alfalfa hybrids in sward versus space planted plots

Description:: Includes references
Author:: Riday, H. , Brummer, E.C.
Subject:: Medicago sativa subsp. falcata , Medicago sativa , alfalfa , hybridization , plant breeding , heterosis , crop yield , hybrids , genotype , sward , plant competition , plant density
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2004

5. Sampling strategies for crop yield assessment within and among crop rotations

Description:: Includes references
Author:: Jaradat, A.A. , Archer, D.W. , Johnson, J. , VanKempen, S. , Wagner, S. , Eklund, J. , International Conference on Precision Agriculture (7th : 2004 : Minneapolis, Minn.).
Subject:: corn , Zea mays , soybeans , Glycine max , wheat , Triticum aestivum , alfalfa , Medicago sativa , crop rotation , cropping sequence , crop yield , plant growth , plant development , cropping systems , tillage , fertilizer application , soil chemical properties , multivariate analysis , Minnesota
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2004