Effects of seed biopriming under different levels of nitrogen and phosphorus on crop growth and nodulation of cowpea (Vigna unguiculata)

Abstract

Application of Rhizobium + PSB 10% + 75% N and 75% P + 100% K (T6) recorded significantly higher plant height at 15DAS (23.4 cm), 30DAS (37.1 cm), 45DAS (47.7 cm), 60DAS (59.5 cm), 75DAS (63.4 cm), At harvest (68.1 cm), number of trifoliate leaves per plant at 15DAS (3.8), 30DAS (15.0), 45DAS (29.1), 60DAS (36.0), 75DAS (37.2), At harvest (39.5), number of branches plant-1 at 30DAS (7.1), 45DAS (13.7), 60DAS (18.0), 75DAS (22.2), At harvest (24.0), Days taken for 50% flowering 59.7, number of nodules plant-1 (36.4), fresh weight of nodules (520.3 mg), dry weight of nodules (166.3 mg).