The impact of various organic sources on soil nutrient content and nutrient uptake in green gram (Vigna radiata L. WILCZEK) under organic farming practices

A study was conducted at ASPEE College of Horticulture and Forestry, Navsari Agricultural University, Navsari, In 2020-21. The study aimed to examine the effects of various organic nutrient sources on soil nutrient availability, nutrient uptake, and nutrient content in grain and stover of green gram cultivation in a certified organic farm during the rabi season. Applying organic sources had no significant impact on the nitrogen, phosphorus and potassium content in the grain and stover. Post-harvest, the impact of different treatments on soil organic carbon and the availability of nitrogen, phosphorus and potassium (P2O5 and K2O) was not significant. Treatment T6, applying 100% recommended nitrogen dose through vermicompost and 1% Enriched Banana Pseudostem Sap (EBPS), exhibited the highest nitrogen, phosphorus and potassium absorption in grain and stover compared to all other treatments. Treatment T9, which included Ghan-jivamrut at 500 kg/ha and jivamrut at 500 l/ha, exhibited the lowest nitrogen, phosphorus and potassium nutrient uptake values in both grain and stover.