The steady increase in Indian population together with stagnating pulse output over the past four decades has inevitably resulted in decreased per cent availability and productivity of pulses which results in insufficiency to meet the domestic demand of population leads to protein hunger. The protein hunger is common problem in India, where majority of the people have vegetative diet. It is well known that paucity of protein diet results in malnutrition. Being an inexpensive protein source, legumes play an important role in eradicating protein-energy malnutrition (Kanth et al., 2021). So, therefore much attention has been given to boost up pulse production in India. However, the increasing cost of chemical fertilizer, growing environmental concern and energy crisis should be taken in view. Crop improvement strategy with sustaining soil fertility and ecosystem is a felt need of present-day agriculture. With this background, a comprehensive field investigation was carried out to detailing the impact of conjointly applied inorganic and organic sources of N followed by foliar feeding of either crop booster or bio-stimulant on irrigated blackgram. This field study was conducted during Febraury-May, 2023 at the Experimental Farm, Department of Agronomy, Faculty of Agriculture, Annamalai University, Annamalai Nagar of Chidambaram taluk, Cuddalore district, Tamil Nadu (India). Different combinations of inorganic fertilizer [Urea] (75% N) with various organic sources (25% N) viz., Pressmud compost [PMC], Vermicompost [VC], Farmyard manure [FYM], Enriched farmyard manure [EFYM] along with foliar nutrition (either crop booster or bio-stimulant) were tested in field trail of blackgram under irrigated condition and compared with farmers’ practice
(100% RDF) and with absolute control. This field investigation was set up under Randomized block design (RBD), entailed of ten treatments and all are replicated thrice by using the variety VBN 10. The crop responded favourably and markedly to different treatments imposed but, profound improvement on growth attributes, growth analysis and nutrient uptake was registered under the conjoint application of 75% N as urea and 5 tonnes ha-1 of pressmud compost equivalent to 25% RDN followed by foliar feeding of 1% TNAU pulse wonder on 30 and 45 DAS (T7) over rest of the treatments. The least influence was noted under the absolute control (T1-without application) followed by the Farmers’ practice (T2), respectively.
