Vol. 9, Special Issue 8, Part M (2025)

The field investigation in relation to " Impact of organic management practices on physico-chemical properties of soil and fruit yield of Nagpur mandarin in farmer’s field of Katol tehsil " was conducted during 2024-25 at the Farmers field of Katol tehsil of Nagpur district to assess the physico-chemical properties of soil and fruit yield of Nagpur mandarin as influenced by different organic management practices. Soil samples of 0-20 cm and 20-40 cm depths from five locations Viz., Ridhora, Gharatwada, Fetri, Kukdipanjra, and Pardi (Gotmare) were collected for recording various observations. The farmers were applying FYM @ 5-30 Kg tree^-1, Ghanjivamrut @ 500 Kg ha^-1 and Jivamrut @ 500 lit ha^-1 from the last 5-6 years for 8-10 years Nagpur mandarin orchards. From the present investigation, the results revealed that that soil bulk density ranged from 1.22 to 1.42 Mg m^-3 resulted lowest in surface soil. The hydraulic conductivity varied from 0.69 to 0.92 cm hr^-1.The soil reaction was found moderately alkaline (7.10 to 8.12). In all locations there was no much variations in electrical conductivity of soil (0.24 to 0.48 dS m^-1) under organic management practices. Organic carbon levels decreased with depth and ranged between 5.2 to 7.3 g kg^-1. The highest value of 7.3 g kg^-1 recorded in orchards treated with organic inputs FYM @ 30 kg + jivamrut @ 500 lit. ha^-1 over a period of 5-6 years. CaCO₃ increases with the depth and ranged from 1.18 to 3.78 per cent. The physico-chemical properties of soil enhanced with the application of FYM (5-30 kg tree^-1), Jivamrut @ 500 lit ha^-1 and Ghanjivamrut in the Nagpur mandarin orchards of Katol tehsil. The fruit yield of Nagpur mandarin were slightly favoured with the application of various organic sources. The fruit yield showed positive and significant correlations with hydraulic conductivity (r = 0.7161**), organic carbon (r = 0.5496**), different organic management practices.