During flowering-podding stage of sweet pea,applying K fertilizer could reduced the flower and pod drop and applying N fertilizer could improved the commodity value of pod.

 
  • 在花莢期增施鉀肥可以明顯減少落花落莢,增施氮肥可以明顯提高豆莢的商品性。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan