Effect of spatial arrangement on growth and yield of cowpea in a cowpea-maize intercrop

摘要

Cowpea growth and yield performance when intercropped with maize was studied for 3 consecutive seasons under three spatial arrangements, i.e., maize planted at 90 X 30, 100 X 27, and 120 X 22.5 cm, with 2 rows of cowpea between the maize rows. Growthand yield of cowpea was improved significantly by widening maize inter-row distances as compared to the 90 X 30 cm spacing. Hence, intercropped cowpea needs to be sown where maize rows are wide apart, but the maize rows should not be too wide as this would lower the grain yield of maize.