Abstract
Blackgram is an important pulse crop in an organic farming system capable of biological nitrogen fixation. Productivity in organic farming is lower than in conventional farming. To overcome this, seed invigoration can be achieved by combining seed priming and coating treatments, followed by foliar nutrition, to improve germination, seedling vigour, and seed yield. Blackgram seeds were primed with various organic products at different concentrations, and the best priming treatment was coated with bio-inoculants to evaluate their effect on germination, seedling vigour, field emergence, and nodulation. Chemical treatments were used as a check to compare the performance of both conventional and organic treatments. A field trial was conducted over two seasons (Kharif and Rabi) to assess the effect of organic foliar nutrition on crop growth and seed yield. Seeds primed with fermented fish extract (FFE) 5% for 3 h + coating with Bacillus subtilis 10 g + Rhizobium 200 g + Phosphobacteria 200 g and Tamarind Seed Polymer (TSP) 6 g /kg of seed as binder, followed by foliar spray of Panchagavya 5% at flower initiation and early pod formation stages recorded highest seed quality, crop growth and seed yield parameters.