The current nutrient status of crops can now be determined through the systematic sampling of plants as appropriate times.

 
  • 作物當時(shí)的營(yíng)養狀況,可在適當時(shí)期對植物的系統采樣進(jìn)行營(yíng)養分析。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan