Large
scale industrial farming is the most efficient economically, producing a lot of
very cheap food. However, industrial farming carries high costs to the
environment such as: air and water pollution, soil erosion, loss of nutrients
in the soil and more. These impacts will affect the crop yield in the future.
This is where sustainable farming comes in, although the initial costs and
maintenance is higher when farming sustainably, the environmental benefits
offset the cost. There are many different sustainable methods one can use to
maximize environmental benefits and economic viability. One method of
sustainable farming is crop rotation, the variation of crops grown in a given
field annually. The main benefit of crop rotation is the replenishment of nutrients
in the soil. Crop rotation not only benefits the soil but was proven in one
study to increase yield by 28%. However, due to the nature of varying crops,
the farmer is unable to grow the most profitable crop every other year on the
rotation. Another method of sustainable farming is No-till farming, where the
farmer does not till the field in between crops. This method has been linked
with a 4% increase in corn yields after a few years. This method reduces
erosion and provides nutrients to the soil. Unlike many other sustainable
methods there are few economic tradeoffs associated with this method. Another
method is Integrated pest management (IPM) is the introduction of certain
insects into a field to kill unwanted pests. 51 different studies found a 15% decrease
in the amount of bugs in the field and a net increase in production. This
method is associated with a large initial cost of introducing the insects but
will provided a net increase in production in the long run. There are many
different method of sustainable farming other than these examples and each
contains its own benefits and costs.
To learn more about the importance of nutrient rich soils, and learn about a different technique to maintain the soil, Click Here to watch>
http://www.iaea.org/newscenter/multimedia/videos/gc56/180912/bettersoil/index.html
To read more about sustainable agriculture, Click Here>
www.foodroutes.net/doclib/21/MakingMoneyMakingSense.pdf
Sources:
Coreselis,
Kristen, Suszanne Wisniewski, and Mark Ritchie. "Sustainable Agriculture:
Making Money, Making Sense." The
Institute for Agriculture and Trade Policy, Mar. 2001. Web. 16 Dec. 2012.
Video Source:
"IAEA Video Clips - More Food With Better Soil - Using Isotope Techniques To Improve
Soil Quality." IAEA Video Clips - More Food With Better Soil - Using Isotope Techniques
To Improve Soil Quality. N.p., n.d. Web. 17 Dec. 2012.
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