By increasing efficiency of water use and fertilizer resources, and gaining highly potential dryland output, average food per product in 15 years reached 4 100 kg/ km 2, thus food could be self support basically with one person only possessing 733 m 2 dryland field;

  • 根据不同降水年型旱作生产力的特性,提高水肥资源的利用效率,实现旱作产量潜势的高实现率,15a平均粮食单产达到4100kg/km2,在人均旱作粮田仅为733m2的条件下,做到粮食基本自给;

  • 互联网摘选 2025-01-19 23:32:09

    • 相关例句
    精确
    • 模糊
    • 词首
    • 词尾
    • 词义
    • 例句