Effect of Different Nutrient Sources on Yield, Nutrient Content and Uptake of Black Gram (Vigna mungo L. Hepper) in Organic Agriculture

Abstract

The field investigation was conducted to study the influence of different organic nutrient sources on black gram cv. GU 3 at Organic Farm, ASPEE College of Horticulture, Navsari Agricultural University, Navsari, Gujarat during summer season of the year 2021. The experiment was laid out in Randomized Block Design with Factorial concept, consisting of two levels viz., soil application and foliar application each having three factors. Total of nine treatments i. e., S1 :100 % RDN through NADEP compost, S2 : Ghan-jivamrut @ 500 kg/ha and S3 : Ghan-jivamrut @ 500 kg/ha + Jivamrut @ 500 l/ha and that of foliar application were, F0 : Control, F1 : Novel organic liquid nutrient @ 1 % and F2 : Moringa leaf extract @ 3 %. The application of foliar spray was done thrice at 15, 30 and 45 days after sowing. were replicated thrice. The result revealed that the mean data of nutrient content in black gram seed and stover did not significantly change due to soil and foliar application of different organic nutrient sources. The total NPK uptake was recorded significantly the highest with S1 treatment, whereas total K uptake was found statistically similar with the treatment S3. The foliar application of treatment F2 recorded significantly the highest total NPK uptake by crop. So, it can be concluded that providing 100 percent RDN through NADEP compost in the soil and giving 3 percent Moringa leaf extract or 1 percent Novel organic liquid nutrients on days 15, 30 and 45 after planting on leaves gave significantly higher seed yield, stover yield and total N, P and K nutrient uptake compared to the Ghan-jivamrut @ 500 kg/ha and Ghan-jivamrut @ 500 kg/ha + Jivamrut @ 500 l/ha treatments on soil and control.