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土壤养分循环
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土壤养分循环
Encyclopedia
农学
土壤养分循环
释
soil nutrient cycle
土壤养分循环
在生物参与下,土壤中养分元素从土壤到生物,再从生物回到土壤的循环和利用的过程。是一个复杂的生物地球化学过程。
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upthrow
upthrust
uptilt
Upton Sinclair
up-to-standard evaluation of water function zone
upturned roof-ridge
UPU
upward
upward bias
upward causality
upward compatibility
upward concave
upward continuation
upward convex
upward cumulation
upward cut and fill stoping method
upward deviation
upward directed set
upward/downward atmospheric radiation
upward firing
upward induction
upward invasion of liver qi
upward lighting
upward-looking bowl sundial
upward social comparison
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