Effect of integrated nutrient management on vegetative growth of cowpea [Vigna unguiculata (L.) Walp.]

Abstract

An investigation was carried out during 2017 at the Horticultural Research Farm, Department of Horticulture, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, U.P. Considering the various parameters, vegetative growth of cowpea varied with the different level of fertility and different sources of inorganic and bio-fertilizers viz. Rhizobium and PSB. It was concluded that application of bio- fertilizer have positive effects on availability of nutrients. Observation on vegetative growth parameters like Seed germination percentage, plant height (cm), days to first flowering, green pod length (cm), immature seed weight (g), chlorophyll content and root length (cm) found the maximum vegetative growth in the treatment of T7- 100% RDF + Rhizobium+ PSB and number of leaves per plant found maximum in treatment T10 (75% RDF + Rhizobium + PSB).