Effect of different organic nutrient sources on growth, yield attributes and yield of blackgram [Vigna mungo (L.) Hepper] under organic farming

The field experiment was carried out on blackgram cv. GU 3 at Organic Farm, ACH, Navsari Agricultural University, Navsari during summer 2021. The experiment was laid out in Randomized Block Design with Factorial concept (FRBD) having two factors each having three levels i.e. soil application viz., S₁ (100% RDN through NADEP compost), S₂ (Ghan-jivamrut @ 500 kg/ha) and S₃ (Ghan-jivamrut @ 500 kg/ha + Jivamrut @ 500 l/ha) and foliar application viz., F₀ (control), F₁ (Novel organic liquid nutrient @ 1 %) and F₂ (Moringa leaf extract@ 3%) was given thrice at 15, 30 and 45 DAS. The result revealed that S₁ treatment significantly recorded the highest plant height at harvest, number of branches per plant, number of pods per plant and seed yield. While for foliar application, the treatment F₂ significantly recorded the highest plant height at 40 DAS and higher number of branches per plant, plant height at 60 DAS and at harvest, number of pods per plant, pod length, number of seeds per pod, seed yield and stover yield but remained at par with F₁ treatment. It can be determined that the soil application of 100% RDN through NADEP compost and foliar application of either 3 per cent Moringa leaf extract or 1% Novel organic liquid nutrient at 15, 30 and 45 DAS accomplished better growth and also improved the yield.