Abstract
AbstractA field study evaluated the influence of maize (Zea mays) and cassava (Manihot esculenta) on the growth, yield and nodulation parameters of individual plants of mungbean (Vigna radiata), established as an intercrop. The two systems were managed in a similar manner. Germination, establishment and growth of plants, and yield parameters of mungbean within the maize crop were reduced to a greater extent than that of plants grown with cassava. In addition, in both systems, growth and yields of mungbean plants in close promixity to the non‐legume were suppressed to a greater degree than in plants in the centre rows. In contrast, nodulation and nodule activity of plants in close promixity to maize or cassava was higher than in that of centre rows. The study revealed that shading of mungbean plants in close proximity to maize and cassava does not reduce nodule activity. While competitive relationships between the non‐legume and mungbean could affect the growth and yields of the legume plants in close promixity, the greater utilisation of nitrogen by the non‐legume is suggested to be the causal factor for increased nodule activity.
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