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nitrogen and phosphorus from agriculture, the wastewater sector and the air pathway into groundwater, surface waters and the … Institute calculated nitrogen balances of agriculture on municipal areas and an analysis of the effect of the amended Fertiliser …
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planned in a spatially cost-effective manner and if the consequent reductions of nitrogen and phosphorus, the two nutrients …
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A watershed-based modeling system is developed to assess alternative nutrient abatement policies, including fertilizer taxes, application caps, and uniform reductions. A microeconometric model of nutrient use is estimated using farm-level data, prices, and spatially detailed soil and land...
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productivity and profitability is to be maintained and increased. Legacy stores of nitrogen (N) and phosphorus (P) in catchments …
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The biophysical simulation data from Cornell Net Carbohydrate and Protein System were used in non-linear programming model for least cost ration incorporating ingredient nutrient and price variations. Precision feeding practice indicated to have lower mean cost ration than whole herd feeding in...
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