Response of bio fertilizers and variable source of nutrients influences on yield and nutrient uptake of black gram (Vigna mungo L.)

The experiment was conducted at Agronomy Research Form, Acharya Narendra Deva University of Agriculture & Technology, Kumarganj, Ayodhya during kharif season 2023 and 2024. The experiment consisted of different biofertilizers (B1 - PGPR (Seed treatment @20g kg-1 Seed), B2 -PSB (Seed treatment @20g kg-1 Seed), and B3 - PGPR + PSB (Seed treatment each @20 g kg-1 Seed) and variable sources of nutrients (N0 - Control, N1 - 100% RDF (Inorganic Fertilizer), N2 -75% RDF + Vermicompost @1 tonne ha-1, N3 -75% RDF + Enriched FYM @ 2 tonne ha-1, and N4 - 50% RDF + Vermicompost @1 tonne ha-1 + Enriched FYM @ 2 tonne ha-1. Biofertilizer with of organic soil nutrition to improve soil physical, chemical, nutrient status and biological properties of soil. Results (pooled two year), B3 - PSB (Seed treatment @20g kg-1 Seed) with application of N4 -50%RDF + Vermicompost @1 tonne ha-1 + Enriched FYM @ 2 tonne ha-1 were observed (Pooled two years value) achieve grain yield (1,365.71 and 1,492.68kg ha-1), stover yield (2,690.94 and 2,921.82), biological yield (4,414.50 and 4,056.64 kg ha-1) and harvest index (33.80 and 33.61%) and nutrients uptake viz. nitrogen uptake by grain at 50.11 & 55.93 kg ha-1, stover at 50.39 & 45.26 kg ha-1 and total N uptake at 95.36 & 106.32 kg ha-1, phosphorous uptake by grain at 4.14 and 4.85 kg ha-1, stover at 3.74 & 4.38 kg ha-1, and total P uptake at 7.87 and 9.23 kg ha-1 and potassium uptake by grain at 15.50 & 17.47 kg ha-1, stover at 42.99 & 48.08 kg ha-1 and total K uptake at 58.49 & 65.55kg ha-1 pooled two years values, respectively.