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theory on everlasting of soil fertility
释义
theory on everlasting of soil fertility
Encyclopedia
理学
〔古代农业思想〕
释
theory on everlasting of soil fertility
地力常新壮说
宋代陈旉对土壤肥料之科学总结,认为合理利用土壤、改良土壤和培肥土壤,土壤肥力不会减弱衰退,反而越种越肥,实现地力的常年新壮,驳斥了地力衰退论。
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secondary radar
secondary radiant
secondary radiation
secondary radiation force
secondary rainbow
secondary rare earth
secondary reaction
secondary recovery of cave area
secondary recovery of lean ore
secondary recovery of pillar
secondary recovery of resources
secondary recovery of tailings
secondary reference material
secondary refining of molten steel
secondary reflector
secondary reinforcer
secondary relaxation
secondary remelting refining
secondary resonance
secondary resource
secondary resources
secondary resources of platinum metals group
secondary response
secondary road
secondary root
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更新时间:2025/11/28 16:41:17