In the absence of chemical nitrogen fertilizer, the effective use of phosphate and potash fertilizers is largely limited to leguminous crops only (forage crops, green manure crops or pulses).

 
  • 在没有氮化肥配合的条件下,磷、钾肥的有效利用仅仅局限于豆类作物如牧草、绿肥和豆类等等。
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  • 深远海浮式风电平台 - deep-sea floating wind power platform
  • 京雄高速公路 - Beijing-Xiongan expressway
  • 农业及相关产业增加值 - the added value of agriculture and related industries
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