Effect of biofertilizer and liquid organic nutrient sources on growth and yield of black gram (Vigna mungo L.)

A field experiment was conducted during the kharif season of 2023 at SMOF (SHIATS Model Organic Farm), Department of Agronomy, SHUATS, Prayagraj, Uttar Pradesh. The treatments consisted of 3 levels of Rhizobium – seed inoculation (0, 20, and 25 g/kg) and 3 liquid organic nutrient sources (Vermiwash 10%, Fish Amino Acid 1%, and Seaweed Extract Kappaphycus alvarezii 15%) along with blanket application of FYM 10 t/ha. The experiment was laid out in a Randomized Block Design with 9 treatments and replicated thrice. Application of Rhizobium – seed inoculation 25 g/kg + vermiwash 10% (Treatment 3) recorded highest plant height (35.26 cm), number of branches (8.86), maximum plant dry weight (18.32 g), pods per plant (25.26), seeds per pod (8.46), test weight (34.91 g), seed yield (1.57 t/ha) and stover yield (3.38 t/ha).