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Closing yield gaps in China by empowering smallholder farmers

文献类型： 外文期刊

作者： Zhang, Weifeng 1 ; Cao, Guoxin 1 ; Li, Xiaolin 1 ; Zhang, Hongyan 1 ; Wang, Chong 1 ; Liu, Quanqing; Chen, Xinping; 1 ;

作者机构： 1.China Agr Univ, Minist Educ, Key Lab Plant Soil Interact, Coll Resources & Environm Sci, Beijing 100193, Peoples R China

2.China Agr Univ, Minist Educ, Key Lab Plant Soil

期刊名称：NATURE （ 影响因子：49.962； 五年影响因子：54.637 ）

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收录情况： SCI

摘要： Sustainably feeding the world's growing population is a challenge(1-3), and closing yield gaps (that is, differences between farmers' yields and what are attainable for a given region)(4-6) is a vital strategy to address this challenge(3,4,7). The magnitude of yield gaps is particularly large in developing countries where smallholder farming dominates the agricultural landscape(4,7). Many factors and constraints interact to limit yields(3-6,8-10), and progress in problem-solving to bring about changes at the ground level is rare. Here we present an innovative approach for enabling smallholders to achieve yield and economic gains sustainably via the Science and Technology Backyard (STB) platform. STB involves agricultural scientists living in villages among farmers, advancing participatory innovation and technology transfer, and garnering public and private support. We identified multifaceted yield-limiting factors involving agronomic, infrastructural, and socioeconomic conditions. When these limitations and farmers' concerns were addressed, the farmers adopted recommended management practices, thereby improving production outcomes. In one region in China, the five-year average yield increased from 67.9% of the attainable level to 97.0% among 71 leading farmers, and from 62.8% to 79.6% countywide (93,074 households); this was accompanied by resource and economic benefits.

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