volume 37 issue 3 (september 2003) : 209 - 213
EFFECT OF CROPPING SYSTEMS AND FERTILIZER LEVELS ON THE NUTRIENT UPTAKE AND YIELD BY SORGHUM IN RAINFED VERTISOLS
1Tamil Nadu Agricultural University,
Coimbatore - 641 003. India
Published In
Indian Journal of Agricultural Research
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volume 37 issue 3 (september 2003) : 209 - 213
EFFECT OF CROPPING SYSTEMS AND FERTILIZER LEVELS ON THE NUTRIENT UPTAKE AND YIELD BY SORGHUM IN RAINFED VERTISOLS
1Tamil Nadu Agricultural University,
Coimbatore - 641 003. India
ABSTRACT
Field experiments conducted during the rainy seasons of 1994–95, 1995–96 and 1996–97 on rainfed vertisol showed that sole cropping of sorghum removed more of N and P 2O 5 than from sorghum + cowpea and sorghum + pearl millet system. The N uptake was higher in sole sorghum followed by sorghum + pearl millet system whereas,the P 2O 5 and K 2O uptake were higher in sole sorghum followed by sorghum + cowpea system. The uptake was linear with respect to applied fertilizers in all the cropping systems studied. The grain and straw yield of sorghum were higher when grown as sole crop. Application of fertilizers at N80: P40 and N60: P30 kg/ha significantly increased the grain yield.
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Published In
Indian Journal of Agricultural Research