Paper Title:
Prediction of Soil TN and TC at a Farm-Scale Using VIS-NIR Spectroscopy

Building cost-effective models is of academic and practical value for fast measurement of soil properties, especially at a farm-scale. The aim of this study is to build quantitative models for soil total nitrogen (TN) and total carbon (TC) using visible and near infrared (VIS-NIR) spectroscopy. Dried samples (n=122) collected from an experimental farm, at Silsoe, Bedfordshire, United Kingdom, were scanned from 350 to 2500 nm at 1-nm intervals. Samples were divided into a calibration set (75%) and an independent validation set (25%). A partial least squares regression (PLSR) with leave-one-out cross validation was carried out based on different spectral ranges. Result shows that the best predictions (R2>0.90 and RPD>3.3) are achieved for TN using the VIS range (400-700nm) and for TC using the VIS-NIR range (400-2500nm). It is concluded that VIS-NIR spectroscopy coupled with PLSR can be adopted for the prediction of soil TN and TC at a farm-scale.

Advanced Materials Research (Volumes 225-226)
Edited by
Helen Zhang, Gang Shen and David Jin
H. Q. Yang, B. Y. Kuang, A. M. Mouazen, "Prediction of Soil TN and TC at a Farm-Scale Using VIS-NIR Spectroscopy", Advanced Materials Research, Vols. 225-226, pp. 1258-1261, Apr. 2011
Online since
April 2011
US$ 28,-
Authors: Gui Feng Li
Abstract:A rapid and nondestructive method for measuring internal browning of apple was put forward based on FT-NIR spectroscopy and the relationship...
Authors: Jing Li, Long Xue, Mu Hua Liu, Ping Lv, Lin Yuan Yan
Chapter 2: Mechanical Engineering, Control Engineering and Materials Engineering
Abstract:Vis/NIR spectroscopy was used to measure the moisture content of ginger. 330 samples were separated into two groups, as training and...
  | Authors: Hai Qing Yang
Chapter 1: Engineering Applications
Abstract:In situ determination of optimal harvest time of tomatoes is of value for growers to optimize fruit picking schedule. This study evaluates...
Authors: Lu Zhang, Long Xue, Mu Hua Liu, Jing Li
Chapter 11: Environmental Protection and Economic Development
Abstract:This study demonstrated how VIS-NIR spectroscopy can be used in the quantitative, noninvasive probing of soluble solids content (SSC) of...
Authors: Yu Fei Li, Da Cheng Wang, Dong Yan Zhang, Da Zhou Zhu
Chapter 3: Sensor, Test and Signal Processing
Abstract:Soil test is the key-point for formulated fertilization. The traditional chemical analysis methods for estimating soil nutritional parameters...