INTEGRATED NUTRIENT MANAGEMENT STUDIES IN PUMPKINA.N. Alekar, A.P. Wagh, R.P. Kharde and P.S. HiraveAbstract An experiment entitled ĀIntegrated nutrient management studies in pumpkinĀ was carried out during summer season of 2011-12 at Horticulture Farm, Department of Horticulture, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola. The experiment conducted in Randomized Block Design with three replications using cv. Arka chandan, with ten treatments, two kinds of organic manures (FYM and Vermicompost) alone and in combination with two kinds of bio-fertilizers (Azotobacter and PSB) and reduced doses of chemical fertilizers were tested in comparison with RDF. On the basis of results, the application of 50:25:25 Kg NPK ha-1 + FYM 25 t ha-1 + seed treatment with PSB to the crop found to be sound integrated practice. Where it recorded maximum vine length (440.33cm), number of branches(13.37), inter nodal length(15.54cm), Days to male flowering (48.84), Days to female flowering(57.14), number of fruit per vine (2.40), weight of fruit (1847.86g), diameter of fruit (14.83cm) and thickness of flesh (2.67cm), Total Soluble Solids(11.76%), yield per plot (4.43kg) and yield per hectare (210.95q). Maximum uptake of major nutrient (4.23, 0.42, 0.39% nitrogen, phosphorus, potash respectively) and maximum final available nutrient status after harvest (190.23, 27.97 and 386.81 kg ha-1 nitrogen, phosphorus, potash respectively). Thus, there was a rise in soil fertility level by the use of biofertilizers, FYM, Vermicompost along with inorganic fertilizer as compared to inorganic fertilizers alone. Minimum vine length, number of branches, internodal length, Days to male flowering, Days to female flowering, number of fruit per vine, weight of fruit, diameter of fruit and thickness of flesh was observed in the treatment RDF+ FYM 25 t ha-1.
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