在试验中一天两次对0—80 cm土壤层每20 cm处进行湿度测定。
During the experiment, moisture was measured twice a day at 20-cm intervals between 0 and 80 cm of the soil.
基于大田土壤水分入渗试验与相关参数的测定，分析了耕作土壤入渗能力衰减过程，探讨了耕作土壤入渗能力衰减机理。
Based on soil water infiltration testing and related parameters measured in field, tillage soil water infiltration capacity attenuation process was analyzed and the mechanism was discussed.
模拟试验主要模拟农田的基本情况，测定土壤淋溶液中氮的含量，采用半微量开氏法。
The simulated test mainly simulates the basic situation of the farmland, determines the content of nitrogen in soil drench solution, and adopts semi-micro Macro Kjeldahl method.
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