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<!DOCTYPE html>
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<title>Farming</title>
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<h1>Organic Farming</h1>
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<marquee id="mar">"Farming is our Breath"</marquee>
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<h2 id="intro">Introduction</h2>
<p class="p1">   Organic farming is an alternative agricultural system which originated early in the 20th century in reaction to rapidly changing farming practices. Certified organic agriculture accounts for 70 million hectares globally, with over half of that total in Australia. Organic farming continues to be developed by various organizations today. It is defined by the use of fertilizers of organic origin such as compost manure, green manure, and bone meal and places emphasis on techniques such as crop rotation and companion planting. Biological pest control, mixed cropping and the fostering of insect predators are encouraged. Organic standards are designed to allow the use of naturally occurring substances while prohibiting or strictly limiting synthetic substances.For instance, naturally occurring pesticides such as <spam id="spam1"> pyrethrin and rotenone</spam> are permitted, while synthetic fertilizers and pesticides are generally prohibited.Synthetic substances that are allowed include, for example, copper sulfate, elemental sulfur and Ivermectin. Genetically modified organisms, nano materials, human sewage sludge, plant growth regulators, hormones, and antibiotic use in livestock husbandry are prohibited. </p> </div>
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<h2 id="method">Methods</h2>
<p class="p2">   Organic farming methods combine scientific knowledge of ecology and some modern technology with traditional farming practices based on naturally occurring biological processes. Organic farming methods are studied in the field of agroecology. While conventional agriculture uses synthetic pesticides and water-soluble synthetically purified fertilizers, organic farmers are restricted by regulations to using natural pesticides and fertilizers. An example of a natural pesticide is pyrethrin, which is found naturally in the Chrysanthemum flower. The principal methods of organic farming include <spam id="spam2">crop rotation, green manures </spam>and compost, biological pest control, and mechanical cultivation. These measures use the natural environment to enhance agricultural productivity: legumes are planted to fix nitrogen into the soil, natural insect predators are encouraged, crops are rotated to confuse pests and renew soil, and natural materials such as potassium bicarbonate and mulches are used to control disease and weeds. Genetically modified seeds and animals are excluded. </p></div>
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<h2 id="soil">Soil management</h2>
<p class="p3">   Plants need a large number of nutrients in various quantities to flourish. Supplying enough nitrogen and particularly synchronization so that plants get enough nitrogen at the when plants need it most, is a challenge for organic farmers.Crop rotation and green manure ("cover crops") help to provide nitrogen through legumes (more precisely, the family Fabaceae), which fix nitrogen from the atmosphere through symbiosis with <spam id="spam3">rhizobial bacteria</spam>. Intercropping, which is sometimes used for insect and disease control, can also increase soil nutrients, but the competition between the legume and the crop can be problematic and wider spacing between crop rows is required. Crop residues can be ploughed back into the soil, and different plants leave different amounts of nitrogen, potentially aiding synchronization. </p></div>
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<a href="#mar">Click here to go top</a> <br>
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<a href="http://agritech.tnau.ac.in/org_farm/orgfarm_introduction.html">Click to learn more</a>
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© Google </div>
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santroo's
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