soft fertility quality

• 土壤肥力

soft fertility quality的用法和样例：

例句

1. It's an effective way to maintain soil fertility.
   这是保持土壤肥力的一个有效办法。
2. And the soil fertility and species diversity of stands treated by EGC were also greater than the control.
   采取生态型林地清理方式的林分土壤肥力及物种多样性均比对照林分高。