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Authors Johnson, D.A. Remove constraint Johnson, D.A.: Johnson, D.A. Year 2004 Remove constraint 2004: 2004
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1. Elemental uptake in relation to root characteristics of tall fescue

Description:
Includes references
Author:
Shewmaker, G.E. , Johnson, D.A. , Mayland, H.F. , Martin, S.A. , Hansen, S.B.
Subject:
Festuca arundinacea , magnesium , nutrient uptake , leaves , leaf area , roots , length , chemical concentration , calcium , potassium , phosphorus , forage grasses , cool season grasses , cultivars , organic salts , chemical constituents of plants , chemical composition , grass tetany
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. Soil morphology and organic matter dynamics under cheatgrass and sagebrush-steppe plant communities

Description:
Includes references
Author:
Norton, J.B. , Monaco, T.A. , Norton, J.M. , Johnson, D.A. , Jones, T.A.
Subject:
indigenous species , Bromus tectorum , noxious weeds , invasive species , Artemisia tridentata , plant communities , soil morphology , soil organic matter , spatial distribution , soil microorganisms , soil degradation , Idaho , Utah
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2004

4. Winter CO2 fluxes above sagebrush-steppe ecosystems in Idaho and Oregon

Description:
Includes references
Author:
Gilmanov, T.G. , Johnson, D.A. , Saliendra, N.Z. , Svejcar, T.J. , Angell, R.F. , Clawson, K.L.
Subject:
carbon dioxide , gas emissions , greenhouse gases , winter , rangelands , grasslands , shrublands , global carbon budget , climatic factors , soil respiration , soil temperature , biogeochemical cycles , mathematical models , quantitative analysis , equations , ecosystems , snow , wind , soil-atmosphere interactions , Idaho , Oregon
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2004