soil aridity

• 土壤干旱

soil aridity的用法和样例：

例句

1. Soil drought reduced moisture content and nitrogenase activity of nodules.
   土壤干旱降低田菁根瘤的含水量和固氮活性。
2. Weed control efficacy was lower and weeds were less sensitive in soil water stress treatment than in irrigated treatment before spraying.
   用药前后土壤干旱可以使一些除草剂杀草速度变慢，除草效果明显降低。