It can promote the circulation of the oxygen in the blood, and timely supplement the consumed nutrient substances.
促进氧在血液中的循环，及时为你补充消耗的营养物质。
Farm manure is spread in fields as a nutrient or organic supplement.
农业肥料领域，有传播营养或有机补充。
It shows that the yield improvement is mainly due to the soil nutrient amelioration (especially nitrogen nutrient) and the interaction of mutual supplement of N and P nutrient.
指出杨树刺槐混交林生产力提高主要是因为林地土壤养分（特别是N素养分）的极大改善及树种间N、P养分的互补。
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