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. Tiling is breaking up and truing the soil to prepare the ground for planting.
这些方法包括象减少耕作那样来进行土壤产量管理。耕作被破坏，并将土壤准备好适合中指的土地。
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