soilbag土工袋
soiln.土地;土壤;污物,粪便v.弄污
soil and water erosion水土流失
soil reclamation plant土壤改良植物
soil forming processes土壤形成过程
soil erosion intensity土壤侵蚀强度
Soil moisture in field农田墒情
Soil coveringthickness覆土厚度
Soil layer strainmeter土层应变仪
soil nutrient diagnose土壤营养诊断
soil enrichment method土壤加富法
Soil nitrogen transfer土壤氮素转化