共 10 条
[9]
我国农业科技贡献率升至57.5% .2 农业部. http://news.cctv.com/2018/01/28/ARTI0SR69n0qbf7hzdr0DWXr180128.shtml .
[10]
Analysis of the spatial mismatch of grain production and farmland resources in China based on the potential crop rotation system .2 Li Tingting,Long Hualou,Zhang Yingnan,et al. Land Use Policy . 2017