sweetening of the soil

例句：

1. 1. Thesweetening of the soil is a naturalprocess that helps plants grow.
   土壤的软化是一个自然的过程，有助于植物生长。
2. 2. Thefarmer carefully monitors the soil'ssweetening to ensure optimal crop yield.
   农民仔细监控土壤的软化，以确保最佳的作物产量。
3. 3. Thesweetening of the soil canbe accelerated by adding organic matter.
   通过添加有机物质可以加速土壤的软化。