Search results
Results from the WOW.Com Content Network
To mitigate these environmental impacts, various nitrogen management strategies are employed in agriculture. Soil testing is an essential practice that helps farmers assess the nutrient status of their soils and determine appropriate fertilizer application rates. Nutrient management plans based on soil test results help optimize fertilizer use ...
Management techniques range from animal management and housing to the spread of pesticides and fertilizers in global agricultural practices, which can have major environmental impacts. Bad management practices include poorly managed animal feeding operations, overgrazing, plowing, fertilizer, and improper, excessive, or badly timed use of ...
Management techniques range from animal management and housing to the spread of pesticides and fertilizers in global agricultural practices, which can have major environmental impacts. Bad management practices include poorly managed animal feeding operations, overgrazing, plowing, fertilizer, and improper, excessive, or badly timed use of ...
Nutrient pollution, a form of water pollution, refers to contamination by excessive inputs of nutrients.It is a primary cause of eutrophication of surface waters (lakes, rivers and coastal waters), in which excess nutrients, usually nitrogen or phosphorus, stimulate algal growth. [1]
Nitrogen fertilizer being applied to growing corn in a contoured, no-tilled field in Iowa.. Nutrient management is the science and practice directed to link soil, crop, weather, and hydrologic factors with cultural, irrigation, and soil and water conservation practices to achieve optimal nutrient use efficiency, crop yields, crop quality, and economic returns, while reducing off-site transport ...
Such management may help attenuate the undesirable cascading effects and eliminate environmental Nr accumulation. [1] Human activities dominate the global and most regional N cycles. [36] N inputs have shown negative consequences for both nutrient cycling and native species diversity in terrestrial and aquatic systems.
The Food and Agriculture Organization of the United Nations (FAO) estimates world demand for nitrogen fertilizers increased by 1.7% annually between 2011 and 2015, an increase of 7.5 million tonnes. Regional increases of nitrogen fertilizer use are expected to be 67% by Asia, 18% by the Americas, 10% by Europe, 3% by Africa, and 1% by Oceania. [5]
A farm that can "produce perpetually", yet has negative effects on environmental quality elsewhere is not sustainable agriculture. An example of a case in which a global view may be warranted is the application of fertilizer or manure, which can improve the productivity of a farm but can pollute nearby rivers and coastal waters (eutrophication ...