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Long-term effect of manures and fertilizers on nutrient status under cotton mono-cropping in vertisol

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The status of nutrients-their depletion and build up in soil and crop productivity after twenty two years (1991-2012) of cotton mono-cropping were studied under continuous use of various inorganic fertilizers and organic manure in a Vertisol. Results showed that application of 100% RD of NPK (90:45:45 kg ha-1 ) +FYM @ 10 t ha-1 recorded highest seed cotton yield of 2181 kg ha-1 which was on par with 150% RD of NPK treated plot.

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Nội dung Text: Long-term effect of manures and fertilizers on nutrient status under cotton mono-cropping in vertisol

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