Comparatively, ploughing green manures back could not only supply nutrients for tobacco plants, but also improve the oil quality and bring about higher economic benefit.

 
  • 相比而言,种植和翻压绿肥增加生产成本少、效益高,并具有改良土壤和向烟株提供养分的双重作用。
今日热词
目录 附录 查词历史