Effect of Judicious Combination of Composted Pressmud, Inorganic Fertilizers and Biofertilizers on Soil Physicochemical Properties and yield of Sugarcane

摘要

Field experiment was conducted to study the effect of judicious combination of graded doses of composted pressmud (bioearth) Viz., 3,6 and 9 tonnes per hectare along with full and reduced doses (75%) of recommended fertilizer with or without biofertilizer on soil physicochemical properties and yield of sugarcane and also these were compared with FYM and recommended doses of NPK fertilizers. The results indicated that bioearth @ 6 tonnes per hectare along with 75% NPK fertilizers and acetobacter foundto be efficient in increasing the yield of sugarcane. Likewise the effect of FYM + NPK was on par with 3 tonnes bioearth per ha + 100% NPK fertilizers indicating 12.5 tonnes of FYM equaling 3 tonnes of bioearth. On the other hand FYM @ 12.5 tonnes per ha + 100% NPK is on par 6 tonnes of bioearth per ha + 75% NPK. Application of organic manures both bioearth and FYM did not significantly change the pH, EC and ESP of post harvest soil however, the organic manures significantly increased the organic carbon exchangeable cations and available nutrients of post harvest soil.