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Animal agriculture, in particular meat production, can cause pollution, greenhouse gas emissions, biodiversity loss, disease, and significant consumption of land, food, and water. Meat is obtained through a variety of methods, including organic farming , free-range farming , intensive livestock production , and subsistence agriculture .
Animal agriculture, in particular meat production, can cause pollution, greenhouse gas emissions, biodiversity loss, disease, and significant consumption of land, food, and water. Meat is obtained through a variety of methods, including organic farming , free-range farming , intensive livestock production , and subsistence agriculture .
With average crop yields remaining at the 1900 level the crop harvest in the year 2000 would have required nearly four times more land and the cultivated area would have claimed nearly half of all ice-free continents, rather than under 15% of the total land area that is required today. [16]
Cover crops can increase microbial activity in the soil, which has a positive effect on nitrogen availability, nitrogen uptake in target crops, and crop yields. Cover crops reduce water pollution risks and remove CO2 from the atmosphere. [1] Cover crops may be an off-season crop planted after harvesting the cash crop.
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]
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 ...
Producing 1 kg (2.2 lb) of beef requires an average of 25 kg (55 lb) of crop. [19] The production of all this food also results in more and more agricultural waste. In large quantities, agricultural waste can have a negative impact on the environment and habitat, for example through greenhouse gas emissions , the creation of unpleasant odours ...
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 ...