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Subjects nitrogen Remove constraint nitrogen: nitrogen Year 2005 Remove constraint 2005: 2005
Displaying items 91 - 100 of 106 start over

91. Spatial and temporal variation in RGR and leaf quality of a clonal riparian plant: Arundo donax

Description:
Includes references
Author:
Spencer, D.F. , Ksander, G.G. , Whitehand, L.C.
Subject:
Arundo donax , aquatic weeds , invasive species , plant growth , leaves , nitrogen , phenology , temporal variation , spatial variation , plant tissues , chemical constituents of plants , chemical analysis , carbon nitrogen ratio , weed control , soil water content , soil nutrients , nutrient availability , trophic relationships , herbivores , California
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005

92. Status of soil electrical conductivity studies by central state researchers

Description:
Includes references
Author:
Johnson, C.K. , Eigenberg, R.A. , Doran, J.W. , Wienhold, B.J. , Eghball, B. , Woodbury, B.L.
Subject:
electrical resistance , soil properties , electrical conductivity , electromagnetic induction techniques , Triticum aestivum , winter wheat , grain yield , field experimentation , sensors , precision agriculture , sustained yield management , nitrogen , mineralization , soil fertility , nitrate nitrogen , manure spreading , cattle manure , ammonium nitrogen
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005

93. Sustaining Soil Resources While Managing Nutrients

Description:
Includes references
Author:
Jaynes, Dan B. , Karlen, Douglas L.
Subject:
soil nutrients , nutrient management , soil fertility , sustainable agriculture , soil resource management , soil resources , soil conservation , nitrogen , soil nutrient balance , losses from soil , cover crops , biological treatment , denitrification , pollution control , manure spreading
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005

94. Synergism between cover crop residue and herbicide activity on emergence and early growth of weeds

Description:
Includes references
Author:
Teasdale, J.R. , Pillai, P. , Collins, R.T.
Subject:
Chenopodium album , Setaria faberi , Amaranthus hybridus , Abutilon theophrasti , Vicia villosa , weeds , seedling emergence , seedling growth , cover crops , crop residues , herbicidal properties , soil water , nitrogen , synergism , metolachlor , simulation models , phytotoxins , weed control , cultural control
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005

95. Temporal changes in soil and biomass nitrogen for irrigated wheat grown under free-air carbon dioxide enrichment (FACE)

Description:
Includes references
Author:
Adamsen, F.J. , Wechsung, G. , Wechsung, F. , Wall, G.W. , Kimball, B.A. , Pinter, P.J. Jr. , LaMorte, R.L. , Garcia, R.L. , Hunsaker, D.J. , Leavitt, S.W.
Subject:
Triticum aestivum , spring wheat , irrigation , carbon dioxide , elevated atmospheric gases , water stress , soil fertility , nitrogen content , shoots , developmental stages , nutrient uptake , nitrogen , Arizona
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005

96. The contribution of red wood ants to soil C and N pools and CO2 emissions in subalpine forests

Description:
Includes references
Author:
Risch, A.C. , Jurgensen, M.F. , Schutz, M. , Page-Dumroese, D.S.
Subject:
Formica rufa , montane forests , coniferous forests , forest soils , forest ecosystems , forest litter , mineral soils , carbon , nitrogen , soil nutrient dynamics , carbon dioxide , gas emissions , Switzerland
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005

97. The Effect of Irrigation and Genotype on Carbon and Nitrogen Isotope Composition in Peanut (Arachis hypogaea L.) Leaf Tissue

Description:
Includes references
Author:
Rowland, D.L. , Lamb, M.C.
Subject:
Arachis hypogaea , peanuts , leaves , carbon , nitrogen , stable isotopes , irrigation systems , water use efficiency , cultivars , phenotype , crop yield , chlorophyll , genetic variation , irrigation rates , water stress , Georgia
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005

98. The potential role of sheep in dryland grain production systems

Description:
Includes references
Author:
Goosey, H.B. , Hatfield, P.G. , Lenssen, A.W. , Blodgett, S.L. , Kott, R.W.
Subject:
Triticum aestivum , winter wheat , soil water content , fallow , cropping systems , nitrogen , nutrient availability , soil fertility , spring wheat , Hordeum vulgare , barley , sheep , Cephus cinctus , insect pests , weed control , goats , grazing , plant pests , insect control , soil density , Montana
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005

99. Tillage, cover crops, and nitrogen fertilization effects on cotton and sorghum root biomass, carbon, and nitrogen

Description:
Includes references
Author:
Sainju, U.M. , Singh, B.P. , Whitehead, W.F.
Subject:
Gossypium hirsutum , cotton , fiber crops , Sorghum bicolor , field crops , cover crops , nitrogen , roots , dry matter accumulation , nitrogen content , carbon , crop management , chiseling , tillage , no-tillage , nitrogen fertilizers , fertilizer application , application rate , field experimentation , Vicia villosa , Secale cereale , soil quality , Georgia
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005

100. Timing of urea application affects leaf and root N uptake in young Fuji/M.9 apple trees

Description:
Includes references
Author:
Dong, S. , Cheng, L. , Scagel, C.F. , Fuchigami, L.H.
Subject:
Malus domestica , apples , crop production , urea fertilizers , application rate , application timing , leaves , roots , shoots , nitrogen , nutrient uptake , seasonal variation , Oregon
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005