The soil moisture is measured in the field by time domain reflectometry (TDR), neutron probe and soil sampling, The results showed that the measured values are different.

• 应用时域反射仪（TDR）、中子仪和上钻法测定了农田土壤水分，并对农田土层含水量和主体贮水量的测定结果进行了比较。