Effect of integrated nutrient management practices on physical, bio-chemical properties and yield of aonla (Emblica officinalis Gaertn)

The experiment was conducted at the Instructional cum Research Fruit Orchard, K.N.K. College of Horticulture, Mandsaur (Madhya Pradesh), Department of Fruit Science. Rajmata Vijayaraje Scindia Krishi Vishwa Vidyalaya, Gwalior (Madhya Pradesh) during 2014-15 to evaluate the effect of NPK alone or in combinations with FYM, vermicompost and biofertilizers on yield and quality parameters of aonla cv. NA-7. Randomized block design (RBD) having three replication was applied in the experiment. Eight years old uniform trees of Aonla (Emblica officinalis Gaerth) cv. NA-7 (Narendra Aonla-7) were selected for this study. There were eleven treatment combinations (Control, 800:400:800 g NPK per plant, 400:200:400 g NPK + 10 kg FYM per plant, 400:200:400 g NPK + 10 kg Vermicompost per plant, 800:200:400 g NPK + 50 g PSB per plant, 600:400:800 g NPK + 40 g Azotobactor per plant, 600:200:800 g NPK + 50 g PSB + 40 g Azotobactor per plant, 400:0:400 g NPK + 10 kg FYM + 50 g PSB per plant, 400:0:400 g NPK + 10 kg Vermicompost + 50 g PSB per plant, 200:0:400 g NPK + 10 kg FYM + 50 g PSB + 40 g Azotobactor per plant and 200:0:400 g NPK + 10 kg Vermicompost + 50 g PSB + 40 g Azotobactor per plant. The results of present experiment shows that the treatment 600:200:800 g NPK + 50 g PSB + 40 g Azotobacter per plant has been found most appropriate integrated nutrient dose under agro-climatic conditions of Malwa plateau for obtaining good physical and biochemical properties and yield of aonla.