Effect of vermicompost enriched with rockphosphate on growth and yield of cowpea (Vigna unguiculata L. Walp)

Department of Soil Science and Agricultural Chemistry, College of Agriculture, Kerala Agricultural University, Vellayani, Thiruvananthapuram, Kerala, 695522

¹Present address: Department of Soil Science and Agricultural Chemistry, College of Horticulture, Vellanikkara, Thrissur, Kerala, 680656