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The environmental impact of agriculture is the effect that different farming practices have on the ecosystems around them, and how those effects can be traced back to those practices. [1] The environmental impact of agriculture varies widely based on practices employed by farmers and by the scale of practice.
Agricultural economics is an applied field of economics concerned with the application of economic theory in optimizing the production and distribution of food and fiber products. Agricultural economics began as a branch of economics that specifically dealt with land usage. It focused on maximizing the crop yield while maintaining a good soil ...
The increased atmospheric CO 2 level from human activities (mainly burning of fossil fuels) causes a CO 2 fertilization effect. This effect offsets a small portion of the detrimental effects of climate change on agriculture. However, it comes at the expense of lower levels of essential micronutrients in the crops.
Meat from cattle and sheep have the highest emissions intensity of any agricultural commodity. Greenhouse gas emissions across the supply chain for different foods. Livestock produces the majority of greenhouse gas emissions from agriculture and demands around 30% of agricultural freshwater needs, while only supplying 18% of the global calorie ...
The agricultural policy of the United States is composed primarily of the periodically renewed federal U.S. farm bills.The Farm Bills have a rich history which initially sought to provide income and price support to US farmers and prevent them from adverse global as well as local supply and demand shocks.
The term "sustainable agriculture" was defined in 1977 by the USDA as an integrated system of plant and animal production practices having a site-specific application that will, over the long term: [13] satisfy human food and fiber needs; enhance environmental quality and the natural resource base upon which the agriculture economy depends
Climate change will exacerbate current biotic stresses on agricultural plants and animals. [6] Increases of atmospheric carbon dioxide (CO 2), rising temperatures, and altered precipitation patterns will affect agricultural productivity. Increases in temperature coupled with more variable precipitation will reduce productivity of crops, and ...
A plantation economy is an economy based on agricultural mass production, usually of a few commodity crops, grown on large farms worked by laborers or slaves. The properties are called plantations . Plantation economies rely on the export of cash crops as a source of income.