Impact of Nitrogen, Phosphorus and Bio-fertilizer on Yield Dynamics & Quality of Okra (Abelmoschus esculentus L.Moench)

Abstract

The present study entitled Impact of Nitrogen, Phosphorus and Bio-fertilizer on Yield Dynamics & Quality of Okra. (Abelmoschus esculentus L. Moench) was carried out in spring summer season of 2020-21 at main experiment farm of P. G. College Ghazipur (U.P.). The factorial experiment was conducted in a Randomized Block Design with eight treatment combinations and with three replications. The one-half nitrogen along with full dose of phosphorus were applied before sowing as basal dose, while remaining one-half of nitrogen was top dressed after 30 days after sowing. Two biofertilizer treatments Azotobacter(B1) and no Azotobacter(B0), two nitrogen and phosphorus treatments N1, N2, P1, P2 each of 60 kg/ha and 40 kg/ha were used in the experiment. The sowing distance was 30 x 30 cm. Application of biofertilizer [Azotobacter(B1)] as okra seed treatment resulted higher vegetative growth and growth attributes. Fruit yield (kg/plot) was uniformly pushed up by using Azotobacter during the present investigation. Thus, Azotobacter may be used for better realization of fruit yield in okra cultivation The effect of different nitrogen and phosphorus treatments viz., height of plant, number of branches, number of leaves and all growth characters and ultimately yield was significantly higher with increased doses. It may be concluded from the findings of present experiment that combined effect of nitrogen, phosphorus and biofertilizer treatment is superior over the combination where no biofertilizer was used. Therefore, seed inoculation is strongly recommended for okra cultivations in eastern part of Uttar Pradesh especially Ghazipur district.