Comparison of Soil Total Nitrogen Content Prediction Models Based on Vis-NIR Spectroscopy
نویسندگان
چکیده
منابع مشابه
Non - biased prediction of soil organic carbon and total nitrogen with vis - 1 NIR spectroscopy , as affected by soil moisture content and texture
8 This study was undertaken to evaluate the effects of moisture content (MC) and texture on 9 the prediction of soil organic carbon (OC) and total nitrogen (TN) with visible and near 10 infrared (vis-NIR) spectroscopy under laboratory and on-line measurement conditions. An 11 AgroSpec spectrophotometer was used to develop calibration models of OC and TN using 12 laboratory scanned spectra of fr...
متن کاملDetection of Soil Total Nitrogen by Vis-SWNIR Spectroscopy
Measurement of soil total nitrogen (STN) is urgently important concerning requirement of precise and quantitative fertilizer application. To overcome the shortage of routine chemical detection, visshort wavelength near infrared spectroscopy (Vis-SWNIRS) was employed as an accurate, cheap and timely alternative. Kennard-Stone algorithm was utilized for sample set partitioning, where 22 of the 32...
متن کاملComparison between Random Forests, Artificial Neural Networks and Gradient Boosted Machines Methods of On-Line Vis-NIR Spectroscopy Measurements of Soil Total Nitrogen and Total Carbon
Accurate and detailed spatial soil information about within-field variability is essential for variable-rate applications of farm resources. Soil total nitrogen (TN) and total carbon (TC) are important fertility parameters that can be measured with on-line (mobile) visible and near infrared (vis-NIR) spectroscopy. This study compares the performance of local farm scale calibrations with those b...
متن کاملThe Effects of Soil Moisture Content on Reflectance Spectra of Soils Using UV-VIS-NIR Spectroscopy
This study was conducted to investigate the effects of soil moisture content on reflectance spectra of sandy soils with different phosphorus (P) concentrations using UV-VIS-NIR reflectance spectroscopy. Sandy soils with average particle size of 250 μm were used. Investigations were conducted at 0, 12.5, 62.5, 175, 375, 750, and 1000 mg/kg phosphorus application rates. Three soil moisture conten...
متن کاملPrediction 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, w...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Sensors
سال: 2020
ISSN: 1424-8220
DOI: 10.3390/s20247078