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Water pollution due to dairy farming in the Wairarapa area of New Zealand (photographed in 2003) Agricultural pollution refers to biotic and abiotic byproducts of farming practices that result in contamination or degradation of the environment and surrounding ecosystems, and/or cause injury to humans and their economic interests.
According to a 2005 report by the USDA, more than 335–million tons of "dry matter" waste (the waste after water is removed) is produced annually on farms in the United States. [62] Animal feeding operations produce about 100 times more manure than the amount of human sewage sludge processed in US municipal waste water plants each year ...
Proper management of pastures, notably managed intensive rotational grazing and grazing at low intensities can lead to less use of fossil fuel energy, increased recapture of carbon dioxide, fewer ammonia emissions into the atmosphere, reduced soil erosion, better air quality, and less water pollution. [260]
Greenhouses allow for greater crop production and also use less water since they are closed systems. [84] Desalination techniques can turn salt water into fresh water which allows greater access to water for areas with a limited supply. [85] This allows the irrigation of crops without decreasing natural fresh water sources. [86]
Agricultural wastewater treatment is a farm management agenda for controlling pollution from confined animal operations and from surface runoff that may be contaminated by chemicals in fertilizer, pesticides, animal slurry, crop residues or irrigation water. Agricultural wastewater treatment is required for continuous confined animal operations ...
Water conservation: Water conservation is the practice of using less water in agriculture. This can be done by using drip irrigation, planting drought-tolerant crops, and mulching. Sustainable land use: Sustainable land use is the practice of using land in a way that meets the needs of the present without compromising the ability of future ...
Agricultural waste are all parts of crops that are not used for human or animal food. Crop residues consist mainly of stems, branches (in pruning), and leaves. [1] It is estimated that, on average, 80% of the plant of such crops consists of agricultural waste. [2] The four most commonly grown agricultural crops worldwide are sugarcane, maize ...
Cover crops manage soil erosion, soil fertility, soil quality, water, weeds, pests, diseases, biodiversity and wildlife in an agroecosystem—an ecological system managed and shaped by humans. Cover crops can increase microbial activity in the soil, which has a positive effect on nitrogen availability, nitrogen uptake in target crops, and crop ...