Introduction
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Legume effect has been successfully utilised in green manuring.
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The amount of nitrogen fixed by ordinary green manure crop like Dhaincha, Sunhamp, etc. may average about 60 kg/ha.
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However, the amount of nitrogen accumulated by green manure crop is not likely to be able to provide to the level of nitrogen currently needed by high yielding varieties. Therefore, integrated use of both chemical fertilizer and green manuring is best solution.
Green manuring
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The practice of ploughing or turning into the soil undecomposed green plant tissue for the purpose of improving physical condition as well as fertility of soil is referred to as green manuring and the manures obtained by this method is known as green manures.
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The use of green manure in crop production is recorded in China as early as 1134 BC.
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Last modified: Tuesday, 8 November 2011, 9:47 AM