title: Rapid and accurate evaluation of the quality of commercial organic fertilizers using near infrared spectroscopy.
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.
authors.affiliation: National Engineering Research Center for Organic-based Fertilizers, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing Agricultural University, Nanjing, PR China.
authors.forename: Chang
authors.initials: C
authors.lastname: Wang
authors.affiliation: National Engineering Research Center for Organic-based Fertilizers, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing Agricultural University, Nanjing, PR China.
authors.forename: Chichao
authors.initials: C
authors.lastname: Huang
authors.affiliation: National Engineering Research Center for Organic-based Fertilizers, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing Agricultural University, Nanjing, PR China.
authors.forename: Jian
authors.initials: J
authors.lastname: Qian
authors.affiliation: National Engineering Research Center for Organic-based Fertilizers, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing Agricultural University, Nanjing, PR China.
authors.forename: Jian
authors.initials: J
authors.lastname: Xiao
authors.affiliation: National Engineering Research Center for Organic-based Fertilizers, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing Agricultural University, Nanjing, PR China.
authors.forename: Huan
authors.initials: H
authors.lastname: Li
authors.affiliation: National Engineering Research Center for Organic-based Fertilizers, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing Agricultural University, Nanjing, PR China.
authors.forename: Yongli
authors.initials: Y
authors.lastname: Wen
authors.affiliation: School of Plant Biology, University of Western Australia, Crawley, Australia.
authors.forename: Xinhua
authors.initials: X
authors.lastname: He
authors.affiliation: National Engineering Research Center for Organic-based Fertilizers, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing Agricultural University, Nanjing, PR China.
authors.forename: Wei
authors.initials: W
authors.lastname: Ran
authors.affiliation: National Engineering Research Center for Organic-based Fertilizers, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing Agricultural University, Nanjing, PR China.
authors.forename: Qirong
authors.initials: Q
authors.lastname: Shen
authors.affiliation: National Engineering Research Center for Organic-based Fertilizers, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing Agricultural University, Nanjing, PR China.
authors.forename: Guanghui
authors.initials: G
authors.lastname: Yu
mesh_terms: D000818:Animals; D002244:Carbon / Q000737:chemistry; D002681:China; D004553:Electric Conductivity; D005308:Fertilizers / Q000032:analysis*; D006863:Hydrogen-Ion Concentration; D016018:Least-Squares Analysis; D009584:Nitrogen / Q000737:chemistry; D012987:Soil; D019265:Spectroscopy, Near-Infrared / Q000379:methods; D018505:Waste Management / Q000379:methods
chemical_list: D005308:Fertilizers; D012987:Soil; D002244:Carbon; D009584:Nitrogen