农业
粮食安全
产量(工程)
作物
肥料
环境科学
作物产量
农业工程
作物管理
农学
农林复合经营
营养管理
业务
农业经济学
生物
经济
工程类
生态学
材料科学
冶金
作者
Xinping Chen,Zhenling Cui,Peter M. Vitousek,Kenneth G. Cassman,Pamela A. Matson,Junhua Bai,Qingfeng Meng,Peng Hou,Shanchao Yue,Volker Römheld,Fusuo Zhang
标识
DOI:10.1073/pnas.1101419108
摘要
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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