Vol. 12, Issue 9 (2023)

Author(s):
SK Ghodke, RU Nimbalkar, DN Damse and RL Bhilare

Abstract:
A field experiment on Long term effect of Integrated Nutrient Management on Productivity of Sugarcane was conducted in two cycle consist of one plant cane and its successive 4 ratoon in each cycle at Central Sugarcane Research Station, Padegaon (M.S.) for ten years during 2006 to 2016 with an object of effect of integrated nutrient management on yield and quality of sugarcane, nutrient uptake and physico-chemical properties of soil. It was comprised of eight treatments viz., T₁-100% of RD through organics, T₂-100% NPK through inorganic, T₃-Fertilizer dose as per soil test (AST) with FYM & biofertilizer, T₄-75% of RD through organics + 25% RD through inorganic, T₅-50% of RD through organic & 50% of RD through inorganic, T₆-25% RD through organics +75% RD through inorganic, T₇-Use of Rishi- Krishi Tantra and T₈-Use of Jivamrut. Pooled results revealed that the treatment with 25% RD through organics + 75% RD through inorganic produced higher cane yield, CCS yield and average cane weight. The quality parameters were found non-significant. The soil pH was decreased in all the treatments except the treatment 100% NPK RD through inorganic fertilizers and lower EC was observed in the treatment rishi Krishi Tantra. The status of soil organic carbon was significantly improved over initial due to application of different organics. The same treatment having combinations of with 25% RD through organics + 75% RD through inorganic recorded higher gross monitory returns (Rs. 252290 ha^-1), net returns (Rs.179225 ha^-1) and B:C ratio (2.45). The result indicated that the application of 25% recommended dose of NPK through organics + 75% recommended dose of NPK through inorganic fertilizers for sugarcane was found beneficial in terms of yield, sustenance of soil fertility and economics.