1. Rapid and Accurate Evaluation of the Quality of Commercial Organic Fertilizers Using Near Infrared Spectroscopy.
- Author
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Wang, Chang, Huang, Chichao, Qian, Jian, Xiao, Jian, Li, Huan, Wen, Yongli, He, Xinhua, Ran, Wei, Shen, Qirong, and Yu, Guanghui
- Subjects
ORGANIC fertilizers ,NEAR infrared spectroscopy ,COMPOSTING ,ANIMAL industry ,LEAST squares ,ORGANIC farming ,ELECTRIC conductivity - Abstract
The composting industry has been growing rapidly in China because of a boom in the animal industry. Therefore, a rapid and accurate assessment of the quality of commercial organic fertilizers is of the utmost importance. In this study, a novel technique that combines near infrared (NIR) spectroscopy with partial least squares (PLS) analysis is developed for rapidly and accurately assessing commercial organic fertilizers quality. A total of 104 commercial organic fertilizers were collected from full-scale compost factories in Jiangsu Province, east China. In general, the NIR-PLS technique showed accurate predictions of the total organic matter, water soluble organic nitrogen, pH, and germination index; less accurate results of the moisture, total nitrogen, and electrical conductivity; and the least accurate results for water soluble organic carbon. Our results suggested the combined NIR-PLS technique could be applied as a valuable tool to rapidly and accurately assess the quality of commercial organic fertilizers. [ABSTRACT FROM AUTHOR]
- Published
- 2014
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