The results of calibration sample set showed that the re-correlation coefficients(R2) between NIRS and chemical methods values were 0.99 for CP and the root square standard error of calibration(RMSEC) were 0.34%.

• 结果指出 :用NIR法得到的预测值与用凯氏定N法得到的测定值间的复相关系数达到R2=0.；99；定标标样的标准误均方RMSEC=0