protection of soil moisture

• 保墒

protection of soil moisture的用法和样例：

例句

1. A layer of snow can preserve soil moisture and prevent it from freezing.
   积雪可以保温保墒。
2. This tillage practice was done by farmers to control weeds and conserve moisture during the fallow period before the wheat crop.
   农民用这种耕作措施除草并在种麦前的休闲期保墒。