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Integrated soil-crop system management for food security.

Proceedings of the National Academy of Sciences of the United States of America

growth & development, Zea mays, Soil, Food Supply, economics, Fertilizers, Crops, Agricultural, China, methods, Agriculture

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      Abstract

      China and other rapidly developing economies face the dual challenge of substantially increasing yields of cereal grains while at the same time reducing the very substantial environmental impacts of intensive agriculture. We used a model-driven integrated soil-crop system management approach to develop a maize production system that achieved mean maize yields of 13.0 t ha(-1) on 66 on-farm experimental plots--nearly twice the yield of current farmers' practices--with no increase in N fertilizer use. Such integrated soil-crop system management systems represent a priority for agricultural research and implementation, especially in rapidly growing economies.

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      Journal
      10.1073/pnas.1101419108
      3080987
      21444818
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