| 摘要: |
| 该文从农户的角度，采取问卷调查的方法，研究分析我国三大粮食作物目前生产中存在的增产问 题，以期为我国未来粮食科技研究提供一定的决策依据。结果显示:我国粮食增产的主要限制因素是科技、 气候变化、土壤质量问题。需要针对水稻、玉米、小麦三大作物的具体问题，加强相关科学技术研究，加 大投入、推进农业科技创新和推广，以保障我国粮食安全。 |
| 关键词: 我国 农户调查 粮食增产 限制因素 |
| DOI：10.7621/cjarrp.1005-9121.20100203 |
| 分类号: |
| 基金项目: |
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| THE MAJOR CONSTRAINT FACTORS OF GRAIN YIELD IN CHINA: BASED ON HOUSEHOLD INVESTIGATION |
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Dong Wen1,2, Chen Yuanquan3, Wang Guosheng4, Sui Peng3, Gao Wangshen3
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1．Circular Agriculture Research Center，China Agricultural University，Beijing 100193，China;2．China Rural Technology Development Center，Beijing 100045，China;3.Circular Agriculture Research Center，China Agricultural University，Beijing 100193，China;4.Circular Agriculture Research Center，China Agricultural University，Beijing 100193，China
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| Abstract: |
| From views of the households， based on the questionnaire investigation， the major constraint factors in China's grain production were analyzed in this paper. The results showed that science and technology， climate change and soil quality problem were the constraint factors impacting the increase of grain yield. In order to protect the nation's food security， it needed to strengthen the relevant scientific and technological research， increase invest- ment， and promote agricultural science and technology innovation. |
| Key words: China food security household investigation yield increase constraint factors |
