A suitable combined programme for fertilizer applications were N: 75130 kg/hm2,P2O5:50.0-112.5 kg/hm2 from tillering to the first ten days of July,with no or little potassium fertilizer.

 
  • 確定“黑土型”退化草地上人工植被的施肥組合方案為施肥時(shí)間在分蘗~7月上旬、N:75~130 kg/hm2、P2O5:50.;0~112
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