通过研究设计了可用于温室土壤水分的测量系统，介绍了其方案设计、电路设计和传感器的选择等问题。
A system measuring soil moisture in sunlight greenhouse is studied and designed in the paper and the plan design, circuit design and choice of sensor are introduced.
模拟结果令人满意，其相对误差小于5 %，可用于旱地地膜春小麦的土壤水分监测和指导补充灌溉。
The results of simulation was satisfactory, the relative error is less than 5%. They could be used to monitor soil moisture condition and to guide supplementary irrigation.
由Ben - A sher等提出的等效半球模型EHM (EffectiveHemisphereModel)可用于滴灌系统设计和田间滴灌作物土壤水分的管理。
The effective hemisphere model (EHM) lodged by BenAsher can apply in drip irrigation system design and field crop soil water management.
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