Impact of nano-DAP on growth & yield of black gram (Vigna mungo L.) in inceptisol soil

Abstract

The field experiment was carried out on “Effect of Nano-DAP on growth and yield of black gram (Vigna mungo L.) in Inceptisol”, during Kharif season of year, 2023-24 at research field, Department of Soil Science. College of Agriculture, Latur. The experiment was laid out in RBD with three replications and recommended variety of black gram TAU-1 as a test crop along with nine treatments. The results in nutshell indicated that the growth and yield were significantly influenced by application of 100 per cent RDNP + S.T. of Nano-DAP+ F.A.@ 0.4 per cent of Nano- DAP at 20, 30 & 40 DAS. The growth parameters viz., plant height, number of branches, leaf area, no. of nodules plant-1 were significantly increased with application of 100 per cent RDNP + S.T. of Nano-DAP+ F.A @ 0.4 per cent of Nano- DAP at 20, 30 & 40 DAS (T9) which was found at par with treatment T8 (100 per cent RDNP + S.T. of Nano-DAP+ F.A.@ 0.4 per cent of Nano-DAP at 20 & 30 DAS), T2 (100 per cent RDF + S.T. of Nano-DAP) and T7 (75 per cent RDNP + S.T. of Nano-DAP+ F.A.@ 0.4 per cent of Nano-DAP at 20, 30 & 40 DAS). Significantly higher number of pods, number of grains, grain yield and straw yield were recorded with application of 100 per cent RDNP + S.T. of Nano-DAP+ F.A @ 0.4 per cent of Nano- DAP at 20, 30 & 40 DAS (T9) which was found at par with treatment T8 (100 per cent RDNP + S.T. of Nano-DAP+ F.A.@ 0.4 per cent of Nano-DAP at 20 & 30 DAS), T2 (100% RDF + S.T. of Nano-DAP) and T7 (75 per cent RDNP + S.T. of Nano-DAP+ F.A.@ 0.4 per cent of Nano- DAP at 20, 30 & 40 DAS).