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theory of nutrient returns
释义
theory of nutrient returns
Encyclopedia
农学
[肥料养分效率]
释
theory of nutrient returns
养分归还学说
为维持土壤肥力而必须归还作物从土壤中取走养分的理论。即植物收获物从土壤带走的养分,必需“返还”至土壤才能维持土地生产力。
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