Environmental Science 1021F/G Chapter Notes - Chapter 18: Soil Salinity, Antimicrobial Resistance, Concentrated Animal Feeding Operation
19 Oct 2016
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Rice farmers struggling with azolla (fern-like weed that grows on the surface of water), use modern farming equipment which allowed farmers to obliterate the azolla (with the use of heavy dose chemicals, herbicides) This technology relied on cheap energy and lots of water (both not plentiful), impaired ecosystems and resulted in damage to the land. Option: converting to organic agriculture farming which does not use the synthetic fertilizers, pesticides or other chemical additives like hormones. Green revolution: took place between 1940s-1960s global efforts to eliminate world hunger by improving crop performance and bringing modern agricultural technology to developing countries. This plant-breeding program in the mid-1990s dramatically increased crop yields and led the way for mechanized, large-scale agriculture. Introduced high-yield varieties (hyvs)of staple crops grow faster, more resistance to crop diseases and yield much more product than natural varieties. Resulted in 100% increase in global food reduction and 20% reduction in famine between 1960s-
