Authors : V. P. Babhulkar, P. R. Kadu and P. C. Pagar
Page Nos : 14-15
Description :
A field experiment was conducted to study the impact of gypsum with and without FYM and PMC on yield of greengram and dynamics of characteristics of Sodic Vertisols The soil had pHs 8.8, ECe 2.5, 4 dSm"1 , SARe 16, He 0.4 mm ha"1 and 100% GK value 5 t ha"1. Significantly highest increased in grain and straw yield of greengram by 85 and 55 per cent over control was noticed due to combined application of gypsum @ 50% GR and FYM @ 5 t ha"1 and this gave maximum net monetary return and B:C ratio. This combination reduced pHs, ECe and SARe and increased HC of Sodic Vertisols over gypsum @ 50% GR, FYM and PMC when given separately. A highly significant negative relationship of grain yield with pHs (r= -0.669)*, ECe (i~ -0.805)** and SARe (r -0 843)** and positive with HC (r=0.860)** was registered. The model Y = -23.80 +- 5.66* pHs - 1.84 ECe - 0.97)** SARe + 8.03* HC .. .. .. , R2 -0.9408** was found to be best in predicting grain yield of green gram with 94% raviability.
Keywords : Green gram, sodic Vertisols (jypsum, FYM, PMC, grecngratn, xoi characteristics, relationship
