Abstract

The field experiment was conducted at the Horticulture Research CRC Farm – 1 of the Department of Horticulture, School of Agriculture, ITM University Gwalior (M.P.) during the year 2019 and 2020 to study the Influence of Integrated Nutrient Management on nutrient status of soil and aonla leaves under sub-tropics of Madhya Pradesh. The experiment was laid out in the randomized block design with three replications and eleven treatments viz. (control) - RDF (1000: 500:1000 g/ tree), 3/4thof RDF + FYM, 3/4th of RDF + FYM + Azotobacter (100 g), 3/4th of RDF + FYM+ Azospirillum (100 g), 3/4th of RDF + FYM+ PSB (100 g), 3/4thof RDF + FYM+ Azotobacter + Azospirillum + PSB(100 g/tree each), ½ of RDF + FYM, 1/2 of RDF + FYM+ Azotobacter (100 g), 1/2 of RDF + FYM + Azospirillum(100 g), ½ of RDF + FYM + PSB(100 g), ½ of RDF + FYM + Azotobacter + Azospirillum + PSB (100 g/tree, each. The results revealed that among different treatments, application of ½ of RDF + FYM + Azotobacter + Azospirillum + PSB recorded higher microbial population, available nitroge, phosphorus, potassium and available soil zinc, copper and boron which was followed by application of 1/2 of RDF + FYM+ Azotobacter (100 g). Thus, application of ½ of RDF + FYM + Azotobacter + Azospirillum + PSB was found to best for improving the soil nutrient status which will in turn help in improving the yield of Aonla.

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