Research Article

Pigeon Pea and Cowpea-Based Cropping Systems Improve Vesicular Arbuscular Mycorrhizal Fungal Colonisation of Subsequent Maize on the Alfisols in Central Malawi

Figure 3

VAM colonisation of maize roots as influenced by previous cropping systems and N fertilizer application for Dowa site. Key. Each error bar represents a standard error of the mean; CP = cowpea; MZ = maize; PP = pigeon pea; 92N = 92 kg N ha−1.