The methods involve soil fertility management as well as reduced tillage.
这些方法包括管理土壤肥力和减少耕作。
Fertility management is a global issue of medical, economic, and social consequence.
生育的调节不仅是个医学问题，也涉及到全球性的经济和社会问题。
The methods involve soil fertility management as well as reduced tillage. Tilling is breaking up and turning the soil to prepare the ground for planting.
这些方法包括管理土壤肥力和减少耕作。耕作就是将土壤松碎并翻转，为种植做好准备。
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