Effect of organic manures and Inorganic fertilizers on yield and economics of Cowpea production (Vigna unguiculata L.)

Abstract

Effect of organic manures and inorganic fertilizers on yield and economics of cowpea variety Pusa Komal was investigated in Vegetable Research Farm Rajola, under the campus of Mahatma Gandhi Chitrakoot Gramodaya Vishwavidyalaya, Chitrakoot(MP), and the study was design as a series of factorial experiments in split plot arrangement with three replications in Kharif (2011-12). The result showed significantly maximum plant height (54.42 cm), number of leaves plant-1 (36.92) and number of branches plant-1 (7.57) was estimated in O3 (vermi-compost 5 t/ha) at 45 DAS. The treatment I2 (60:80:75 kg NPK/ha) was recorded the maximum plant height (55.01 cm), number of leaves plant-1 (30.82), and number of branches plant-1 (7.81) at 45 DAS. Interaction effect of treatments combination (O3 I2) was also recorded high values viz., plant height (58.66 cm), number of leaves plant-1 (44.26), and number of branches per plant (8.76) again at 45 DAS. yield attributing traits viz., number of pods plant-1 (18.66), number of seeds pod-1(14.33), pod weight (10.77g), pod length (24.54 cm), pod yield plant-1 (201.0 g), pod yield plot-1(8.44 kg) and pod yield ha-1(10.42 t/ha) of cowpea were also exhibited in significantly maximum in treatment combination (O3 I2) with net return of Rs. 72806/ha and cost benefit ratio 1:2.39, but maximum C: B ratio 1:2.62 was obtained in O4 I2 (Goat manure 5 t/ha + 60:80:75 kg NPK/ha) due to low expenditure Rs. 44509/ha as compared to treatments O3 I2.