Improving Nutrient Efficiency as a Strategy to Reduce Nutrient Surpluses on Dairy Farms
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چکیده
منابع مشابه
Improving nutrient efficiency as a strategy to reduce nutrient surpluses on dairy farms.
Dutch nutrient policy aims at reducing leaching of agricultural nutrients by internalizing the negative externalities associated with inefficient nutrient use. This is done by taxation of nitrogen and phosphate surpluses that exceed a hectare-based threshold of maximum-allowed surpluses. One management strategy farmers may use to reduce the nutrient surpluses on their farms is to improve the nu...
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Nutrient management plans for livestock operations should account for rates and timing of manure application to cropland, as well as how manure is integrated with other nutrient sources. Little is known, however, about actual nutrient management behavior of farmers, and what changes may be needed for farmers to adhere to nutrient management regulations. Detailed records were kept on fertilizer,...
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In the European Union, groundwater should contain less than 50 mg of nitrate/L. Individual countries have developed alternative strategies for phosphorus (P). In The Netherlands, regulations based on P limited the amount of manure applied per hectare. A more balanced P supply to the land has been achieved by transport of manure from surplus to deficit regions. Costs of processing of manure to p...
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Introduction Essential mineral nutrients applied to crops are a cost to growers and, poorly managed, contaminate air and/or water resources. Over the past 30+ years, fertilizer costs (USDA, 2006) and evidence of the negative impact of fertilizer nutrient contamination of air and water resources have increased significantly (Tilman et al., 2002). Therefore, an increase in nutrient efficiency, me...
متن کاملUsing Animal Density Standards for Nutrient Management Policy on Wisconsin Dairy Farms
As demands for more controlled manure management heighten, policy makers seek indicators to assess the environmental impacts of livestock production and to subsequently direct manure management policy. Farm size indicators, based on number of animals per farm, are currently used to target federal manure management policy (USDA-USEPA, 1999). In this way, federal policy is directed toward the nat...
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ژورنال
عنوان ژورنال: The Scientific World JOURNAL
سال: 2001
ISSN: 1537-744X
DOI: 10.1100/tsw.2001.266