A primer on soil analysis using visible and near-infrared (vis-NIR) and mid-infrared (MIR) spectroscopy PDF Download
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Author: Ge, Y., Wadoux, A., Peng, Y. Publisher: Food & Agriculture Org. ISBN: 9251358982 Category : Technology & Engineering Languages : en Pages : 28
Book Description
“A primer on soil analysis using visible and near-infrared (vis-NIR) and mid-infrared (MIR) spectroscopy” is the first training material on the topic of soil spectroscopy for beginner levels, by the Global Soil Laboratory Network Initiative on Soil Spectroscopy (GLOSOLAN-Spec) of the Global Soil Partnership, FAO. This document provides an introduction to the use of soil spectroscopy for soil analysis and covers the basic and fundamental procedures for using this technology for soil analysis. The series “Soil spectroscopy training material” is part of the Global Soil Laboratory Network (GLOSOLAN) to strengthen the capacity of laboratories in soil analysis. It provides a series of training materials covering wide range of topics in soil vis-NIR and MIR spectroscopy. The overall objective is to develop national and regional soil spectral libraries with an estimation service, and to provide advisory services on appropriate instrumentation.
Author: Ge, Y., Wadoux, A., Peng, Y. Publisher: Food & Agriculture Org. ISBN: 9251358982 Category : Technology & Engineering Languages : en Pages : 28
Book Description
“A primer on soil analysis using visible and near-infrared (vis-NIR) and mid-infrared (MIR) spectroscopy” is the first training material on the topic of soil spectroscopy for beginner levels, by the Global Soil Laboratory Network Initiative on Soil Spectroscopy (GLOSOLAN-Spec) of the Global Soil Partnership, FAO. This document provides an introduction to the use of soil spectroscopy for soil analysis and covers the basic and fundamental procedures for using this technology for soil analysis. The series “Soil spectroscopy training material” is part of the Global Soil Laboratory Network (GLOSOLAN) to strengthen the capacity of laboratories in soil analysis. It provides a series of training materials covering wide range of topics in soil vis-NIR and MIR spectroscopy. The overall objective is to develop national and regional soil spectral libraries with an estimation service, and to provide advisory services on appropriate instrumentation.
Author: Katrina Margarette Wilke Publisher: ISBN: Category : Languages : en Pages :
Book Description
Visible and near infrared diffuse reflectance spectroscopy (VisNIR-DRS) is a method being investigated for quantifying soil properties and mapping soil profiles. Because a VisNIR-DRS system mounted in a soil penetrometer is now commercially available for scanning soil profiles in situ, methodologies for using scans to map soils and quantify soil properties are needed. The overall goal of this research is to investigate methodologies for collecting and analyzing VisNIR-DRS scans of intact soil profiles to identify soil series. Methodologies tested include scanning at variable versus uniform moistures, using individual versus averaged spectra, boosting an intact spectral library with local samples, and comparing quantitative and categorical classifications of soil series. Thirty-two soil cores from two fields, representing three soil series, were extracted and scanned every 2.5 cm from the soil surface to 1.5 m or to the depth of parent material at variable field moist conditions and at uniform moist condition. Laboratory analyses for clay, sand, and silt were performed on each horizon. Soil series were classified using partial least squares regression (PLS) and linear discriminant analysis (LDA). A Central Texas intact spectral library (n=70 intact cores) was used for PLS modeling, alone and boosted with the two fields. Because whole-field independent validation was used, relative percent difference (RPD) values were used to compare model performance. Wetting soils to uniform moisture prior to scanning improved prediction accuracy of total clay and RPD improved by 53 percent. Averaging side-by-side scans of the same soil profile improved prediction accuracy of RPD by 10 percent. When creating calibration models, boosting a library with local samples improved prediction accuracy of clay content by 80 and 34 percent for the two fields. Principal component plots provided insight on the spectral similarities between these datasets. Overall, using PLS alone performed the same as LDA at predicting soil series. Most importantly, results of this project reiterate the importance of fully-independent calibration and validation for assessing the true potential of VisNIR-DRS. Using VisNIR-DRS is an effective way for in situ characterization and classification of soil properties.
Author: Alexander H. Sheridan Publisher: ISBN: Category : Electronic Dissertations Languages : en Pages : 106
Book Description
Site-specific management of crop production systems holds promise for maintaining high yields while preserving soil quality. This management requires detailed spatial data on soil physical and chemical characteristics but traditional testing can be slow and expensive. Recently, sensor-based approaches including reflectance spectroscopy have been proposed as alternatives for quicker, easier soil analysis. The objectives of this study were to investigate the soil property estimation capabilities of reflectance sensing with a spectrometer and with a mobile two-band sensor. In the spectrometer evaluation using profile (to 1 m) samples collected from 32 plots with varying soil characteristics, several important soil quality properties were successfully estimated. Highest accuracy was for dried and ground soil samples which had an R2 of 0.97 and 0.91 for total carbon and nitrogen, respectively. Results with field-moist soil were nearly as accurate, showing that this may be a viable, and more efficient, option. The mobile two-band sensor was evaluated in two central Missouri production fields. It showed good accuracy (R2 = 0.75) for estimating soil organic carbon (SOC) with 20 in-field calibration points. However, this accuracy was not maintained when calibration equations were applied in full-field mapping. Laboratory data collection showed that a sensor with different wavelength bands might provide more accurate results, but this would need to be verified with a wider range of soils.
Author: Soil and Plant Analysis Council Inc. Publisher: CRC Press ISBN: 135141612X Category : Science Languages : en Pages : 265
Book Description
For more than 30 years, soil testing has been widely used as a basis for determining lime and fertilizer needs. Today, a number of procedures are used for determining everything from soil pH and lime requirement, to the level of extractable nutrient elements. And as the number of cropped fields being tested increases, more and more farmers and growers will come to rely on soil test results. But if soil testing is to be an effective means of evaluating the fertility status of soils, standardization of methodology is essential. No single test is appropriate for all soils. Soil Analysis Handbook of Reference Methods is a standard laboratory technique manual for the most commonly used soil analysis procedures. First published in 1974, this Handbook has changed over the years to reflect evolving needs. New test methods and modifications have been added, as well as new sections on nitrate, heavy metals, and quality assurance plans for agricultural testing laboratories. Compiled by the Soil and Plant Analysis Council, this latest edition of Soil Analysis Handbook of Reference Methods also addresses the major methods for managing plant nutrition currently in use in the United States and other parts of the world. For soil scientists, farmers, growers, or anyone with an interest in the environment, this reference will prove an invaluable guide to standard methods for soil testing well into the future. Features
Author: Kim H. Tan Publisher: CRC Press ISBN: 1482274760 Category : Science Languages : en Pages : 668
Book Description
This second edition of the popular Soil Sampling, Preparation, and Analysis provides a hands-on guide to the methods most commonly used in modern soil laboratories around the world, illustrating the methods with actual results. Divided into three sections, the book covers principles of soil sampling and sources of errors and variability of results, common procedures for extraction and analysis in soil plant testing, and instrumentation. The author added three new chapters on soil and plant test methods, electron microscopy, and nuclear magnetic resonance. He has extensively revised, updated, and expanded all of the other chapters to reflect recent advances and shifting interests in the field.
Author: J. Benton Jones, Jr. Publisher: CRC Press ISBN: 9780849302053 Category : Technology & Engineering Languages : en Pages : 268
Book Description
For more than 30 years, soil testing has been widely used as a basis for determining lime and fertilizer needs. Today, a number of procedures are used for determining everything from soil pH and lime requirement, to the level of extractable nutrient elements. And as the number of cropped fields being tested increases, more and more farmers and growers will come to rely on soil test results. But if soil testing is to be an effective means of evaluating the fertility status of soils, standardization of methodology is essential. No single test is appropriate for all soils. Soil Analysis Handbook of Reference Methods is a standard laboratory technique manual for the most commonly used soil analysis procedures. First published in 1974, this Handbook has changed over the years to reflect evolving needs. New test methods and modifications have been added, as well as new sections on nitrate, heavy metals, and quality assurance plans for agricultural testing laboratories. Compiled by the Soil and Plant Analysis Council, this latest edition of Soil Analysis Handbook of Reference Methods also addresses the major methods for managing plant nutrition currently in use in the United States and other parts of the world. For soil scientists, farmers, growers, or anyone with an interest in the environment, this reference will prove an invaluable guide to standard methods for soil testing well into the future. Features
Author: Ge, Y., Wadoux, A., Peng, Y.
Author: Ge, Y., Wadoux, A., Peng, Y.
Author: Katrina Margarette Wilke
Author: Thomas Terhoeven-Urselmans
Author: Alexander H. Sheridan
Author: Maxwell B. Blanchard
Author: 
Author: Soil and Plant Analysis Council Inc.
Author: Kim H. Tan
Author: J. Benton Jones, Jr.
Author: K. I. Peverill