Filters








164 Hits in 8.1 sec

An Empirical Exponential Model based on Reflectivity Measurements for Soil Nitrogen Detection

Deepti Lourembam, Subra Mukherjee
2017 International Journal of Computer Applications  
Reflectance measurements in the near-infrared region have proved to be reliable in terms of measuring various soil attributes like pH, organic matter and soil nutrients.  ...  Studies based on diffused reflectance for detecting soil nutrients and attributes have taken great strides towards building up more effective systems.  ...  Although optical diffused reflectance studies based on NIR spectroscopy has been used for estimation of soil organic matter, it can be extended for the study of other soil properties.  ... 
doi:10.5120/ijca2017915163 fatcat:jqfo6xkuhrd27ga4zoovdf3swe

A Sensitive Wavebands Identification System for Smart Farming

M. Kavitha, M. Sujaritha
2022 Computer systems science and engineering  
Sensing the content of macronutrients in the agricultural soil is an essential task in precision agriculture. It helps the farmers in the optimal use of fertilizers.  ...  The effectiveness of these selected wavelengths in each mode is validated by modeling the relation between the reduced reflectance space and each macronutrient concentration using Partial Least Squares  ...  There are a lot of literature surveys that use optical diffuse reflectance spectroscopy to detect the level of energy reflected by the nutrient ions and soil particles. Shi et al.  ... 
doi:10.32604/csse.2022.023320 fatcat:6qajilrg3nb55guhzw3kp7glym

Soil macronutrient sensing for precision agriculture

Hak-Jin Kim, Kenneth A. Sudduth, John W. Hummel
2009 Journal of Environmental Monitoring  
Rapid, non-destructive quantification of soil properties, including nutrient levels, has been possible with optical diffuse reflectance sensing.  ...  Examples of optical and electrochemical sensors applied in soil analyses are given, while advantages and obstacles to their adoption are discussed.  ...  Dalal and Henry 48 used NIR reflectance spectroscopy to simultaneously estimate water content, total organic carbon, and total N in air-dried soils by multiple linear regression.  ... 
doi:10.1039/b906634a pmid:19809703 fatcat:7jityctcfree5cma4l7h7gs32i

Review—The "Real-Time" Revolution for In situ Soil Nutrient Sensing: A Review

Lamar Burton, K. Jayachandran, S. Bhansali
2020 Journal of the Electrochemical Society  
Based on the literature presented here, there still exists a need to understand the effects of soil heterogeneity on the analytical performance of both electrochemical and optical systems when used in  ...  Optical and electrochemical sensors are becoming less expensive to manufacture and can provide results that are comparable to laboratory soil analysis.  ...  Acknowledgments The author would like to acknowledge support from the FEF McKnight, FIU CREST CACHe, and the NSF Bridge to the Doctorate fellowship.  ... 
doi:10.1149/1945-7111/ab6f5d fatcat:cm5cx35xsfcu7gtasgyozogc2u

A Smart Agriculture System Based On Intel Galileo For Detection Of Cultivable Crops And Implemented On Soil Nutrients

2019 VOLUME-8 ISSUE-10, AUGUST 2019, REGULAR ISSUE  
By measuring the pH soil nutrient content can be measured and so the suitable cultivable crop for different soil varieties can be predicted.  ...  Current scenario is that the farmers need to go research center to test the fertility content of soil and to predict kind of plants can be cultivable in that land.  ...  CONCLUSION This work represents a systematic approach to the analysis of soil fidelity by measuring pH of the soil in order to predict the cultivable crop.  ... 
doi:10.35940/ijitee.i7527.078919 fatcat:2z4ksd4jjnfmti32hpsnnsvyfy

Using Near-Infrared Spectroscopy in Agricultural Systems [chapter]

Francisco García-Sánchez, Luis Galvez-Sola, Juan J. Martínez-Nicolás, Raquel Muelas-Domingo, Manuel Nieves
2017 Developments in Near-Infrared Spectroscopy  
This chapter provides a review on the state of art of the use of the visible near-infrared (vis-NIR) spectroscopy technique to determine mineral nutrients, organic compounds, and other physical and chemical  ...  Our intention here is to introduce the main fundamentals of infrared reflectance spectroscopy, and to show that procedures like calibration and validation of data from vis-NIR spectra must be performed  ...  Fundamentals of infrared diffuse reflectance spectroscopy Spectroscopy in the near infrared or NIRS (near-infrared reflectance spectroscopy) is a tool that has been used widely for the rapid determination  ... 
doi:10.5772/67236 fatcat:elobsfbtzjf3plhyugaayqmuum

Comprehensive nutrient analysis in agricultural organic amendments through non-destructive assays using machine learning

Erick K. Towett, Lee B. Drake, Gifty E. Acquah, Stephan M. Haefele, Steve P. McGrath, Keith D. Shepherd, Balasubramani Ravindran
2020 PLoS ONE  
Portable X-ray fluorescence (pXRF) and Diffuse Reflectance Fourier Transformed Mid-Infrared (DRIFT-MIR) spectroscopy are rapid and cost-effective analytical tools for material characterization.  ...  Two types of machine learning methods, forest regression and extreme gradient boosting, were used with data from both pXRF and DRIFT-MIR spectroscopy.  ...  who were involved in the collection, management and analysis of the organic amendment samples.  ... 
doi:10.1371/journal.pone.0242821 pmid:33301449 fatcat:3luu7luzzvebljb4hdh6bz2mnu

On-line Vis-Nir sensor determination of soil variations of sodium, potassium and magnesium

Y Tekin, Z Tumsavaş, Y Ulusoy, A M Mouazen
2016 IOP Conference Series: Earth and Environment  
Research Council of Turkey (TUBITAK, contract no: 112O471) and the UK Department of Environment, Food and Rural Affairs (contract no: IF0208).  ...  The authors are grateful for the funding received for the FarmFUSE project from the ICT-AGRI (ERA-NET scheme of the European Commission under the 7th Framework Programme), the Scientific and Technological  ...  basic properties of soils, such as the organic matter content, clay content and, more recently, chemical properties [1] .  ... 
doi:10.1088/1755-1315/41/1/012011 fatcat:gsga3i5c4jgydjtla7txnj5j3a

Estimation of soil properties with mid-infrared soil spectroscopy across yam production landscapes in West Africa

Philipp Baumann, Juhwan Lee, Emmanuel Frossard, Laurie Paule Schönholzer, Lucien Diby, Valérie Kouamé Hgaza, Delwende Innocent Kiba, Andrew Sila, Keith Sheperd, Johan Six
2021 SOIL  
Our results confirm that mid-IR spectroscopy is a reliable and quick method to assess the regional-level variation of most soil properties, especially the ones closely associated with soil organic matter  ...  The estimates of total zinc, pH, exchangeable magnesium, bioavailable copper, and manganese were less predictable (R2>0.50).  ...  Soil visible and near-infrared (vis-NIR) and mid-infrared (mid-IR) diffuse reflectance spectroscopy has gained popularity over the past 30 years to assess soil properties in a complementary manner to conventional  ... 
doi:10.5194/soil-7-717-2021 fatcat:3svumqejerf2thezu6mxdam4qi

Optical Spectrometry to Determine Nutrient Concentrations and other Physicochemical Parameters in Liquid Organic Manures: A Review

Michael Horf, Sebastian Vogel, Harm Drücker, Robin Gebbers, Hans-Werner Olfs
2022 Agronomy  
This review summarizes the present state of research based on optical spectrometry used at laboratory and field scale for predicting several parameters of liquid organic manures.  ...  ., dry matter, pH, and electrical conductivity; (2) main plant nutrients, i.e., total nitrogen, ammonium nitrogen, phosphorus, potassium, magnesium, calcium, and sulfur; and (3) micronutrients, i.e., manganese  ...  Furthermore, the application of liquid organic manures increases the content of organic matter in the soil, thus leading to a better water storage capacity and overall improved soil fertility [2] .  ... 
doi:10.3390/agronomy12020514 fatcat:cyzusoctbfderdxeeiy76hv65e

Sensing technologies for precision specialty crop production

W.S. Lee, V. Alchanatis, C. Yang, M. Hirafuji, D. Moshou, C. Li
2010 Computers and Electronics in Agriculture  
However, this variability is affected by a variety of factors, including crop yield, soil properties and nutrients, crop nutrients, crop canopy volume and biomass, water content, and pest conditions (disease  ...  Some of the challenges and considerations on the use of these sensors and technologies for specialty crop production are also discussed.  ...  with soil organic matter, CEC, and moisture content.  ... 
doi:10.1016/j.compag.2010.08.005 fatcat:tesilbgowvf3vplcwgbcevmhyy

Sensing Methodologies in Agriculture for Soil Moisture and Nutrient Monitoring

Bhuwan Kashyap, Ratnesh Kumar
2021 IEEE Access  
adoption in crop production leading to efficient site-specific soil and crop management which in turn will bring us closer to reaching sustainability in the practice of agriculture.  ...  Key sensing methodologies developed for monitoring soil moisture and nutrients with recent advances in the sensing devices reported in literature using those techniques are overviewed in this article.  ...  SOIL MOISTURE METRICS AND STANDARD LABORATORY METHOD Soil is a mixture comprising of minerals, organic matter, living organisms, water and gases.  ... 
doi:10.1109/access.2021.3052478 fatcat:ms5e3gszyzegfk72sqlbhldere

Effects of on-farm composted tomato residues on soil biological activity and yields in a tomato cropping system

Catello Pane, Giuseppe Celano, Alessandro Piccolo, Domenica Villecco, Riccardo Spaccini, Assunta M Palese, Massimo Zaccardelli
2015 Chemical and Biological Technologies in Agriculture  
The use of compost may relieve the factors that limit productivity in intensive agricultural systems, such as soil organic matter depletion and soil sickness.  ...  The nutrient content and fertility potential of composts were positively related to the amount of tomato residues present in the feedstock.  ...  They represent an important source of organic matter to be composted and returned to soil.  ... 
doi:10.1186/s40538-014-0026-9 fatcat:i5jpbzyfpzdfnik2pnmlz5lcea

NASA's surface biology and geology designated observable: A perspective on surface imaging algorithms

Kerry Cawse-Nicholson, Philip A. Townsend, David Schimel, Ali M. Assiri, Pamela L. Blake, Maria Fabrizia Buongiorno, Petya Campbell, Nimrod Carmon, Kimberly A. Casey, Rosa Elvira Correa-Pabón, Kyla M. Dahlin, Hamid Dashti (+48 others)
2021 Remote Sensing of Environment  
agriculture, natural habitats, water use/quality, and urban development.  ...  albedo; (iv) active surface composition (eruptions, landslides, evolving landscapes, hazard risks); (v) effects of changing land use on surface energy, water, momentum, and carbon fluxes; and (vi) managing  ...  These, as well as soil texture, soil organic carbon, soil water content, nutrient content, and a range of other soil applications have strong Table 10 The geology products possible from SBG, including  ... 
doi:10.1016/j.rse.2021.112349 fatcat:i4fmpq6kyrgcfboq42za66q5tm

Chemical analysis in environmental research

E.I. Hamilton
1988 Science of the Total Environment  
Acknowledgements The authors are indebted to NERC and the UK Department of the Environment for financial support for this work.  ...  This procedure was carried out for 6 soils of varying pH, clay and organic matter content to determine the suitability of water extraction of glucose for a wide range of soils.  ...  The approximate organic contents were estimated by loss-on-ignition at 550°C (2 hours). Mean values of the types ranged from 7% to 85% of the dry matter.  ... 
doi:10.1016/0048-9697(88)90322-1 fatcat:dxanhzth5beoxmrdw43aultauu
« Previous Showing results 1 — 15 out of 164 results