... thin soil 瘠土 three essential nutrients 养分三要素 three phases of soil 土壤三相 ...
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·2,447,543篇论文数据，部分数据来源于NoteExpress
在养分积累、分配与利用上，超高产条件下，稻株对N、P、K三要素的吸收量增加，特别是P、K的吸收量增加明显；
The amount of demand for N, P and K, especially the ratios of P and K requirement of super high yielding japonica hybrid rice plant were higher than those of high yielding rice.
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