Integrated soil-crop system management for food security
Integrated soil-crop system management for food security
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DOI：
10.1073/pnas.1101419108
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发表时间：
2011-04-19
影响因子：
11.1
通讯作者：
Zhang, Fu-Suo
中科院分区：
文献类型：
--
作者：
Chen, Xin-Ping;Cui, Zhen-Ling;Zhang, Fu-Suo
中国和其他快速发展的经济体面临着双重挑战，既要大幅度提高谷物产量，又要减少集约农业对环境的重大影响。我们使用模型驱动的综合土壤作物系统管理方法来开发玉米生产系统，在66个农场试验地块上实现平均玉米产量13.0 t ha（-1）-几乎是当前农民实践产量的两倍-而不增加氮肥的使用。这种土壤-作物系统综合管理系统是农业研究和实施的优先事项，特别是在快速增长的经济体中。
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.