Effect of phosphorous and zinc on growth and yield of cowpea (Vigna unguiculata L. walp)

Abstract

A field experiment was conducted during kharif season of 2024 at Crop Research Farm Department of Agronomy, Naini Agricultural Institute, Sam Higginbottom University of Agriculture, Sciences and Technology. To determine “Effect of phosphorous and zinc on growth and yield of Cowpea”. The results revealed that treatment 7 (Phosphorous (50 kg/ha) and Zinc (10 kg/ha) at 60 DAS) recorded significantly higher plant height (78.19 cm), number of branches/plant (25.61), number of nodules/plant (25.80), dry weight (10.75 g), number of pods/plant (13.30), number of seeds/pod (17.73), seed yield (571.52 kg/ha), stover yield (3133.33 kg/ha), and harvest index (280.44%), maximum gross return (INR 100170.00), net return (INR 66740) and B: C ratio (1.99) was recorded in treatment 7 (Phosphorous (50 kg/ha) and Zinc (10 kg/ha) at 60 DAS) as compared to the other treatments was found to be productive as well as economically feasible.