在水稻收割机收获后，抽取样品稻谷，按毛湿谷、净湿谷、净燥谷分别称重、测水分，获得对比数据。结果表明，应用PM-8188New型谷物水分测量仪进行毛鲜湿谷直测比干燥处理后的净谷再测，稻谷折干率及标准水分产量明显偏高，在本试验条件下，折干率平均偏高2.8个百分点，相应的单产偏高3.3%。

Taking grain samples after harvesting, the weights and moisture contents of gross wet grain, net wet grain and net dry grain were measured. The results showed that the drying rate and standard moisture yield of gross wet grain were higher than net dry grain when application of grain moisture measuring instrument for direct measurement. Under the experimental conditions, the average drying rate and yield of gross wet grain were increased by 2.8 percentage points and 3.3% respectively.