clay brown loam是什么意思

用法例句

Study on the Fertilization Technique of Fly Ash and Nitrate Phosphate Fertilizer for Improving Wheat Yield on Clayey Soil in South Shanxi;

粘质土壤小麦高产的施用粉煤灰及氮磷肥技术初探

In order to study water characteristics for clay soils in north and south regions,Lou soil in the north and Red soil in the south were chosen.

为了研究南北方粘质土壤的水分特征,选择北方塿土和南方红壤典型粘土,测定其持水特征和饱和导水率,采用双环入渗仪进行入渗试验。