Influence of Sea Weed Extract (Kappaphycus alverzii) and Zinc on Growth and Yield of Blackgram (Vigna mungo L.)

A field experiment was conducted in Crop Research Farm, Department of Agronomy, Sam Higginbottom University Agriculture, Technology and Science, Prayagraj, (U.P), during the zaid season 2022 with objective to study ‟Influence sea weed extract (Kappaphycus alverzii) Zinc on growth yield Blackgram (Vigna mungo L.)”. Pulses are an integral part many diets across globe they have great potential improve human health. Black gram crop grown parts India. This is cropping systems as a mixed crop, catch sequential besides growing sole under residual moisture conditions after harvest other summer crops semi-irrigated dry land ,and variety shekar 2. The soil experimental plot sandy loam texture, pH (6.9), low organic carbon (0.112%), available N(278.93 kg ha-1), P (10.80 ha-1) K (206.4 ha-1).The layout done Randomized block design nine treatments which replicated thrice. 3 levels concentration (2%, 3%, 4%) foliar application three zinc (15,20,25 application.Growth parameters namely plant height, weight, pods plant-1, number seeds pod-1, test seed yield, Stover index were collected from this experiment. Results revealed that significantly higher height (24.2cm), weight (4.9), pods/plant (21.2), seeds/pod (5.7), (637.0 (873 recorded treatment combination 4%K sap + ZnSO4 25 ha-1 (treatment 9). Maximum gross return (82819.00 INR/ha), net returns (55880.00 benefit cost (2.07) obtained highest