“theory on everlasting of soil fertility”的概念、定义、翻译、参考文献-科学参考

单词	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。
随便看	navigation brain system navigation by earth reference navigation by map-matching navigation by space reference navigation channel of Xijiang River navigation clock navigation constellation navigation coordinate system navigation delay calibration navigation disease monitoring navigation electronic map navigation electronic warfare navigation element navigation engine navigation epidemiology navigation facility of fishing port navigation for the blind person Navigation Guarantee Center Navigation, guidance and control navigation information fusion navigation management in ancient China navigation mark navigation message navigation mission processing machine navigation notice

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