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The field investigation in relation to " Dynamics of different organic inputs on fertility status, biological properties of soil, yield and quality of crops under certified organic farms in Nagpur district of Maharashtra” was carried out during kharifrabi season of 2018 – 19, to assess the biological properties of soil, quality and yield different crops as influenced by various organic resources. Soil samples of 0-10 cm depth were collected randomly after the harvest of crops from six locations of Nagpur district were selected for recording various observations and collected plant samples for quality parameters. Yield of crops was noted from farmer’s field of above locations. In related fertility status of soil, the soil available N content was observed between 188.19 to 420.74 kg ha under the application of organic and inorganic inputs. The application of organic inputs from 8 to 18 years resulted in maximum available N content of soil by 14.61 to 64.57 per cent over the application of inorganic fertilizer alone. The available P of soil were recorded between 12.09 to 25.56 kg ha in the present investigation. The available P was recorded less in the organic field than the fertilizer applied field up to 31.65 per cent. The value of available K found very high in range in the present study. The magnitude of available K ranged from 321.56 to 454.45 kg ha. The available sulphur ranged from 10.64 to 15.38 mg kg i.e. marginal to adequate The maximum microbial count was recorded in organic field over the inorganic field. The count of bacteria, fungi and actinomycetes were varied from 15.75 to 25.00 X 10 cfu g, 9.00 to 15.75 X 10 cfu g and 7.50 to 14.75 X 10 cfu g respectively. In all the locations the yield of Nagpur Mandarin found higher as compared to national average productivity of Nagpur mandarin (10.4 t ha). The yield of sweet orange recorded 14.0 t ha -1 with the application of Ghanjivamrut @ 500 kg ha. Grain yield of wheat was obtained between 1.9 kg ha.When the field applied FYM for 9 years, maximum grain yield of pigeonpea was obtained with fertilizers alone as compared to application of organic source..The quality of crops was improved with application of organic inputs over the fertilizers application. The protein percent of rice was found maximum in organic field. From the study it can be concluded that, the application of organic inputs improve the biological properties of soil. In case of yield due to organic inputs littilbit decreased. Therefore organic and inorganic fertilizers in balanced form are efficiently sustain and enhance the biological properties of soil and maintained the yield and nutritional quality of various crops.

international journal of chemical studies

Dynamics of different organic inputs on fertility status, biological properties of soil, yield and quality of crops under certified organic farms in Nagpur district of Maharashtra