In bottomland, the erosion of stubble land of naked oats is 9.1% less than CK(plough land), while the erosion of stubble land of corn and no-tillage of vegetable is 123.71% and 229.07% more than CK.

 
  • 以耕翻地为对照,在滩地上莜麦留茬地的风蚀量减少了9.;1%25,而玉米留茬地、免耕菜地的风蚀量则比对照分别增加了123
今日热词
目录 附录 查词历史