Effect of phosphate rich organic manure (prom) and bio-inoculants on growth attributes of Rabi blackgram (Vigna mungo L.)

The present study was conducted at College farm, Agriculture College Palem, during the Rabi season of 2024-25, to study the effect of phosphate rich organic manure and bio-inoculants on growth parameters of rabi blackgram (Vigna mungo L.). The experiment was laid out according to factorial randomized block design comprised of three replications. The experiment comprised four fertility levels of (control:100% RDP through RDF, 50% RDP through RDF and 50% RDP through PROM, 25% RDP through RDF and 75% RDP through PROM and 100% RDP through PROM) and three biofertilizers levels (seed treatment with PSB at 10 ml kg-1 seed, soil application of PSB at 1 lit ha-1, soil application of PSB at 1.5 lit ha-1) were applied to blackgram variety MBG-1070. The results revealed that application of 25% RDP through RDF and 75% RDP through PROM along with PSB at 1.5 lit ha-1 showed highest plant height, number of branches and dry matter production. However there is no significant difference between the treatments regarding number of leaves, leaf area.