搜索筛选:
搜索耗时7.3115秒,为你在为你在102,285,761篇论文里面共找到 2 篇相符的论文内容
发布年度:
[会议论文] 作者：YAN Yunxian,WANG Yiping,
来源：清华大学,伦敦城市大学 年份：2017
Corn production ranks first among grains in China since 2012.It is also the main sources for animal feed.Therefore corn production plays an important role in both grain and feed.Actually corn plantati...
[会议论文] 作者：YAN Yunxian,WANG Yiping,
来源：清华大学,伦敦城市大学 年份：2017
Agricultural production has always been exposed to many risks.As a risk management tool,agricultural index insurance is of significance in diversifying agricultural production risks and stabilizing th...
相关搜索：
