Search National Agricultural Library Digital Collections

You searched for:

Subjects nitrogen Remove constraint nitrogen: nitrogen Subjects spatial variation Remove constraint spatial variation: spatial variation Year 2005 Remove constraint 2005: 2005

Displaying all 5 items start over

1. Assimilation versus accumulation of macro- and micronutrients in soils: relations to livestock and poultry feeding operations

Description:: Includes references
Author:: Cole, N.A. , Schwartz, R.C. , Todd, R.W.
Subject:: poultry production , animal feeding operations , concentrated animal feeding operations , livestock production , nutrient management , animal manures , sustainable agriculture , nitrogen , phosphorus , nutrient retention , animal manure management , reduced tillage , conservation buffers , leaching , agricultural runoff , spatial variation , environmental protection , environmental impact , literature reviews , United States
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2005

2. Grazing impacts on spatial distribution of soil and herbaceous characteristics in an Australian tropical woodland

Description:: Includes references
Author:: Northup, B.K. , Brown, J.R. , Ash, A.J.
Subject:: tropical forests , woodlands , grazing , spatial variation , silvopastoral systems , soil chemistry , forage grasses , soil-plant interactions , soil fertility , nitrogen , carbon , soil organic matter , forage , grazing management , plant communities , Queensland
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2005

3. Herbage nitrogen recovery in a meadow and loblolly pine alley

Description:: Includes references
Author:: Burner, D.M. , MacKown, C.T.
Subject:: Pinus taeda , forest trees , Festuca arundinacea , grasses , alley cropping , pastures , microclimate , spatial variation , nitrogen , nutrient uptake , shade , application rate , rotational grazing , nitrogen fertilizers , soil fertility , dry matter accumulation , yields , solar radiation , water stress , plant competition , Arkansas
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2005

4. 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

5. Use of Electromagnetic Soil Surveys to Locate Areas of Nutrient Buildup

Description:: Meeting held July 17-20, 2005, Tampa, Florida.
Author:: Eigenberg, R.A. , Woodbury, B.L. , Nienaber, J.A.
Subject:: feedlots , cattle manure , soil pollution , soil nutrients , nitrogen , phosphorus , electromagnetic induction techniques , spatial variation , soil heterogeneity , surface layers , electrical conductivity , Nebraska
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2005