soil fertility

New research suggests climate change could significantly alter the future of Chinese milk vetch, a legume widely grown as green manure in southern China's rice paddies. Shifting temperatures and rainfall patterns may affect where and how well the plant grows, with implications for soil fertility and sustainable rice farming in the region.

Scientists at CIMMYT argue that successful zinc biofortification of wheat depends on more than breeding fortified seed. In a new piece, they say outcomes hinge on matching the right varieties to local soil conditions and pairing them with proper crop management, including fertilizer practices. The message is aimed at researchers, policymakers and farmers working to reduce zinc deficiency through staple crops.

Legumes improve soil fertility, nutrition, cropping diversity and climate resilience, yet their potential in Africa remains largely untapped. Poor seed systems, biotic and abiotic constraints, weak policy support, post-harvest losses and uneven research investment are cited as the main barriers. Commenters are highlighting the gap between the crops' documented benefits and the limited investment they receive across the continent.