A5044244345- Soil Carbon and Nitrogen Dynamics
- Crop Yield and Soil Fertility
- Ruminant Nutrition and Digestive Physiology
- Soil and Water Nutrient Dynamics
- Plant Water Relations and Carbon Dynamics
- Pesticide and Herbicide Environmental Studies
- Plant nutrient uptake and metabolism
- Plant responses to elevated CO2
- Wildlife-Road Interactions and Conservation
- Atmospheric and Environmental Gas Dynamics
- Animal Diversity and Health Studies
- Carbon dioxide utilization in catalysis
- Scientific Research and Discoveries
- Fish Ecology and Management Studies
- Folate and B Vitamins Research
- CO2 Reduction Techniques and Catalysts
- Agriculture and Rural Development Research
- Catalytic Cross-Coupling Reactions
- Marine and fisheries research
Robert Bosch (Germany)
2024
Early Warning (United States)
2022
University of Minnesota
2020
Aberystwyth University
1935-2001
Harvard University Press
1995
University of Cambridge
1995
New York University Press
1985-1995
Chitose Institute of Science and Technology
1995
Advisory Board Company (United States)
1979-1985
Timing and rate of nitrogen (N) fertilizer application can influence maize (Zea mays L.) grain yield, N uptake, use efficiency (NUE) parameters, but results have been inconsistent across the upper Midwest. This study compared single (fall preplant) split applications differing rates for under irrigated conditions on loamy sand at Becker, MN rainfed loam clay soils Lamberton, Waseca, MN, respectively, in 2014 to 2016. Fall preplant were applied recommended 125% (RN) according University...
Understanding how fertilizer application (particularly N, the most used chemical worldwide) interacts with soil microbes is important for development of best management practices that target improved microbial activity to enhance sustainable food production. This study was conducted determine whether urea N rate and time maize (Zea mays) influenced enzyme activity. Enzyme determined by monitoring fluorescein diacetate (FDA) hydrolysis, ß-glucosidase, acid-phosphomonoesterase, arylsulfatase...
Nitrate leaching was measured over a 3-year period from rotationally grazed perennial ryegrass ( Lolium perenne L.) pasture receiving 200 kg fertilizer-N/ha and similarly ryegrass/white clover Trifolium repens that received no N fertilizer. The results are discussed together with those the same plots in preceding 3 years when they were stocked continuously. Under both managements, numbers of grazing sheep adjusted on basis quantity herbage available plots. During whole 6 years, mean nitrate...
The effectiveness of alternative fertilizer strategies to control nitrate leaching was investigated in a field experiment at IGER, Aberystwyth using simulated pastures represent swards grazed by dairy cattle between May and October 1997, following an initial silage cut. Cut-plots with without applications artificial urine were used the separate components managed nitrogen (N) strategies: standard (fertilizer applied uniformly all areas sward total rate 180 kg N/ha October), tactical rates...
am Main, Germany.
The various methods tested in this work have revealed the criteria of utility, U , shown following table for detection added water as measured by “difference” modes, and ratio modes where M3/M4 is maximum minimum seasonal values M. All figures are 10 per cent, water. Utility equal to less than unity useless.
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