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Minimizing mineral fertilization through use of different sources of organic manure was studied on four walnut selections in temperate region of India (Kashmir) The experiment consisted of four selections [SKAU/002 (S1), SKAU/008 (S2), SKAU/024 (S2) and SKAU/040 (S2)] and six treatments [T1 (NPK recommended as per package of practices through inorganic fertilizers), T2 [100 % through manure (FYM 50% + vermicompost 25% + poultry manure 25%)], T3 (75% NPK through inorganic fertilizers + 25 % through FYM), T4 (75 % NPK through inorganic fertilizers + 25 % through vermicompost), T5 (75 % NPK through inorganic fertilizers + 25 % through poultry manure) and T6 [75 % NPK through inorganic fertilizers + 25 % through manure (1/3 FYM + 1/3 vermicompost + 1/3 poultry manure)] replicated five times and three tree in each replication in Factorial Randomized Block Design. All fertilizers and manures were applied in the first week of December beneath the tree canopy and mixed well with soil. | The beneficial effects of minimizing mineral fertilization on four walnut selections by different sources of organic manures in relation to yield and quality
