Quantitative Analysis of Contents in Compound Fertilizer and Application Research Using Near Infrared Reflectance Spectroscopy
SONG Le1, ZHANG Hong1, NI Xiao-yu1, WU Lin1, LIU Bin-mei2, YU Li-xiang2, WANG Qi1, WU Yue-jin1*
1. Institute of Technical Biology and Agriculture Engineering, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China 2. Key Laboratory of Ion Beam Bioengineering, Chinese Academy of Sciences, Hefei 230031, China
Abstract：In the present study, a new approach to fast determining the content of urea, biuret and moisture in compound fertilizer composed of urea, ammonium dihydrogenphosphate and potassium chloride was proposed by using near infrared diffuse reflectance spectroscopy. After preprocessing the original spectrum, partial least squares (PLS) models of urea, biuret and moisture were built with the R2 values of 0.986 1, 0.977 0 and 0.971 3 respectively, the root mean square errors of cross validation were 2.59，0.38，0.132 respectively. And the prediction correlation factors were 0.973 3, 0.921 5 and 0.967 9 respectively. The authors detected six kinds of compound fertilizer in market for the model verification, the correlation factors were 0.923 7, 0.978 6 and 0.987 4 respectively. The data implied that the new method can be used for situ quality control in the production process of compound fertilizer.
宋 乐1，张 红1，倪晓宇1，吴 林1，刘斌美2，余立祥2，王 琦1，吴跃进1* . 基于NIRS技术的复合化肥成分定量分析及应用研究 [J]. 光谱学与光谱分析, 2014, 34(01): 73-77.
SONG Le1, ZHANG Hong1, NI Xiao-yu1, WU Lin1, LIU Bin-mei2, YU Li-xiang2, WANG Qi1, WU Yue-jin1* . Quantitative Analysis of Contents in Compound Fertilizer and Application Research Using Near Infrared Reflectance Spectroscopy . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2014, 34(01): 73-77.
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