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organic farming |
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organic farmingFarming without the use of synthetic fertilizers (such as nitrates and phosphates) or pesticides (herbicides, insecticides, and fungicides) or other agrochemicals (such as hormones, growth stimulants, or fruit regulators). Food produced by genetic engineering cannot be described as organic. In place of artificial fertilizers, compost, manure, seaweed, or other substances derived from living things are used (hence the name ‘organic’). Growing a crop of a nitrogen-fixing plant such as lucerne, then ploughing it back into the soil, also fertilizes the ground. Some organic farmers use naturally-occurring chemicals such as nicotine or pyrethrum to kill pests, but control by non-chemical methods is preferred. Those methods include removal by hand, intercropping (planting with companion plants which deter pests), mechanical barriers to infestation, crop rotation, better cultivation methods, and biological control. Weeds can be controlled by hoeing, mulching (covering with manure, straw, or black plastic), or burning off. Organic farming methods produce food with minimal pesticide residues and greatly reduce pollution of the environment. They are more labour-intensive, and therefore more expensive, but use less fossil fuel. Soil structure is greatly improved by organic methods, and recent studies show that a conventional farm can lose four times as much soil through erosion as an organic farm, although the loss may not be immediately obvious.
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body, issuing results of a research project, said on average organic farming produces 28 percent higher levels of soil carbon compared with non-organic farming in northern Europe. Eoe1/4" Soil experts at a workshop on soil degradation and salinity held yesterday, have opined that Oman needs to invest in organic farming and conduct research on its sustainability, taking into consideration the soil conditions. The Agriculture Department of Assam Government, on its part, has been spreading mass awareness about organic farming among the farmers through workshops and field visits. |
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