[土壤] Preservation of soil moisture
... preservation 持续; 持续; 保存 preservation of soil moisture 保墒 preservative 防腐剂; 防腐剂 ...
help the soil hold water
reduce soil moisture
PAME ; Preservation agent of soil moisture
保墒指保持住土壤里适合种子发芽和作物生长的湿度。保持水分不蒸发,不渗漏,例如播种后地要压实,是为了减少孔隙,让上层密实的土保住下层土壤的水分。