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Habitat is destroyed by clearing forests and converting land to grow feed crops and for grazing, while predators and herbivores are frequently targeted because of a perceived threat to livestock profits; for example, animal husbandry causes up to 91% of the deforestation in the Amazon region. [91] In addition, livestock produce greenhouse gases.
Mixed farming Mixed farming systems involves livestock keeping integrated with other agricultural activities. These systems are similar to small-scale systems, but tend to be in a more rural setting, given the need for larger tracts of land for crop production. As with small-scale livestock production, access to formal markets is critical ...
Agricultural science – broad multidisciplinary field that encompasses the parts of exact, natural, economic and social sciences that are used in the practice and understanding of agriculture. Agricultural economics – originally applied the principles of economics to the production of crops and livestock – a discipline known as agronomics ...
Continuous grazing by sheep or cattle is a widespread extensive farming system, with low inputs and outputs.. Extensive farming most commonly means raising sheep and cattle in areas with low agricultural productivity, but includes large-scale growing of wheat, barley, cooking oils and other grain crops in areas like the Murray-Darling Basin in Australia.
Agriculture encompasses crop and livestock production, aquaculture, and forestry for food and non-food products. [1] Agriculture was a key factor in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled people to live in the cities.
Crop choice is central to any cropping system. In evaluating whether a given crop will be planted, a farmer must consider its profitability, adaptability to changing conditions, resistance to disease, and requirement for specific technologies during growth or harvesting. [2]
It also encompasses what is known as “associated biodiversity”, the vast range of organisms that live in and around food and agricultural production systems, sustaining them and contributing to their output." Agriculture is understood to include crop and livestock production, forestry, fisheries and aquaculture. [12]
[1] [2] Within agrifood systems, food systems comprise all food products that originate from crop and livestock production, forestry, fisheries and aquaculture, and from other sources such as synthetic biology, and that are intended for human consumption. [1] [2] A conceptual framework for agrifood systems, from The State of Food and ...