Intercropping soybean and maize in a derived savanna ecology

Abstract

Compared to sole soybean, intercropping soybean and maize on flat and ridge reduced yields by 1.0 –29.1% and 29.4 - 40.2% respectively. In maize, intercropping on flat and ridge reduced yields by 13.2 -
25.2% and 24.8 - 43.5% respectively. Planting sole soybean on ridge enhanced mean yield by 18.6% as compared to the sole crop yield on flat. Conversely, planting sole maize on flat enhanced grain yield by
2.8%. Intercropping soybean and maize on flat resulted in optimum yields. The maximum combined intercrop revenue from maize and soybean was from inter + intra-row planting arrangement on flat. However, it was less than total revenue from sole soybean on ridge by 5.88%.