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The prediction of C and N content and their potentia
发布:北京博力飞科技发展有限公司浏览次数:164The development of a rapid, accurate and cost-effective method for the prediction of constituents related to soil nitrogen (N) supply is considered important. The potential of using visible (Vis) and near infrared reflectance (NIR) spectroscopy (4002500 nm) as such a method was investigated. VisNIR calibrations were performed for organic carbon (Corg) and total N (Ntot) content and their potential mineralisation using 80 grassland soil samples of rather heterogeneous origin. Prediction accuracy was tested using a take-out-four validation strategy (48 samples).Within investigated variables a ratio of standard deviation of reference data to standard error of bias corrected prediction (RPD) within 1.7 (r2 = 0.65) and 2.7 (r2 = 0.87) were achieved. Apparent differences........ 土壤快速粉碎仪
2007-08-30相关仪器 -
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