The irrigation way was drip irrigation during experimental time, and the control of soil water content was mainly by oven drying method as well as assistance of TDR.
试验期间灌水采取滴灌方式，土壤水分控制以称重法和取土烘干法为主，辅以TDR法。
Design calculation of chamber sand-mold drying oven is programmed by comuter instead of using diagram method.
本文采用电子计算机进行砂型室式干燥炉的设计计算。
Results show that data from the new sensor matches that from oven drying method, and the maximum error is less than 2%, which can meet the need of agrometeorological monitor.
结果显示传感器测量数据与烘干法测量数据相吻合，最大误差不超过2%，满足农业气象探测的要求。
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