Effect of solid and liquid organic nutrient source on growth and yield of cowpea (Vigna unguiculalta L.)

Abstract

The field experiment was conducted during kharif season of 2023 at Crop Research Farm, Department of Agronomy. The experiment was laid out in a Randomized Block Design with ten treatments which have replicated thrice. The treatments details are as fallows T1: Farm yard manure 5 t/ha + Panchagavya 3%, T2: Farm yard manure 5 t/ha + Jeevamrut 5%, T3: Farm yard manure 5 t/ha + Cow urine 2%, T4: Poultry manure 1 t/ha + Panchagavya 3%, T5: Poultry manure 1 t/ha + Jeevamrut 5%, T6: Poultry manure 1 t/ha + Cow urine 2%, T7: Vermicompost 2 t/ha + Panchagavya 3%, T8: Vermicompost 2 t/ha + Jeevamrut 5%, T9: Vermicompost 2 t/ha + Cow urine 2%. Application of Vermicompost 2 t/ha + Panchagavya 3% (Treatment 7) recorded highest plant height (82.26 cm), no. of nodules (6.33 per plant), maximum plant dry weight (20.96 g/plant), crop growth rate (10.30 g/ݑš2/day), relative growth rate (0.0269 g/g/day), pods per plant (21.67), pods per plant (5.07), seed per pod (8.11), seed index (21.67), seed yield (1.79 t/ha) stover yield (3.42 t/ha), and harvest index (34.21)%. The same treatment also recorded maximum gross return (84130 INR/ha), net return (47930 INR/ha), and benefit cost ratio (1.32).