The CA system promoted by TLC and CIMMYT is based on fourteen years of experience grounded on the principles of minimum soil disturbance, good soil cover and crop associations. The platform to promote CA in Malawi was to build a strong base of knowledge about best practices through an innovative non-linear research-extension approach. Long-term on-farm trials were conducted in multiple sites across Malawi to compare yields and labour inputs of CA with conventional ridge tillage on the same footing. Results showed the superiority of CA in terms of maize and legume yields with significant savings in labour and resilience to climate change. The results provided the basis to upscale CA although adoption was lower than expected. Key challenges included: 1) lack of exposure and training; 2) conflicting extension messages; 3) misconceptions about inputs and tools for CA; 4) resistance to change unless CA is clearly seen to be a better practice; 5) fears about controlling weeds, pests and diseases under CA, and that increased termites and earthworms are harmful to soils and crops.

Maize CRP FP1 - Sustainable intensification of maize-based farming systems

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