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NPK detection using LED based spectroscopy on soil

xSoil spectroscopy measurement is widely used to determine the macronutrient level in soil. This measurement is useful to assist the quality controls of agricultural production, soil fertility and would also helpful in reducing the agricultural cost. This paper details the preliminary optical charac...

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Main Authors: Mohd. Yusof, Khairunnisa, Ngajikin, Nor Hafizah, Che Abd. Rashid, Nurfatihah
Format: Conference or Workshop Item
Published: AUN??A???A-SEED NET 2016
Subjects:
TK Electrical engineering. Electronics Nuclear engineering
Online Access:http://eprints.utm.my/id/eprint/66699/
http://www.rceee.org/
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spelling my.utm.666992017-11-22T00:45:04Z http://eprints.utm.my/id/eprint/66699/ NPK detection using LED based spectroscopy on soil Mohd. Yusof, Khairunnisa Ngajikin, Nor Hafizah Che Abd. Rashid, Nurfatihah TK Electrical engineering. Electronics Nuclear engineering xSoil spectroscopy measurement is widely used to determine the macronutrient level in soil. This measurement is useful to assist the quality controls of agricultural production, soil fertility and would also helpful in reducing the agricultural cost. This paper details the preliminary optical characterization of soil spectroscopy for the monitoring of soil macronutrient concentration. By using a wavelength corresponding to a macronutrient absorption peak, the Beer -Lambert Law can be used to relate the concentration of macronutrient surrounding the sensing portion to the amount of absorbed light. Based on the peak absorbance level performance, LED wavelengths have been identified in replacing the deuterium and halogen lamps in visible and near infrared wavelength for the concentration measurement of soil macronutrient. The chosen LEDs are in a range from 400nm to 1100nm. From colour reagent, the amount of macronutrient can be detected by observing the intensity of colour -develop solution. This colour -develop solution, then illuminates by deuterium and halogen lamp to measure the peak absorbance . The soil samples have obtained the peak absorbance level for nitrogen and phosphorus at wavelength of 450nm and 780nm respectively . The experimental result shows the absorption line for measured potassium is in a similar pattern, but the maximum absorbance shows in range 400nm to 500nm . By using LEDs, nitrogen, phosphorus and potassium are estimated to absorb blue, red and near -infrared wavelength range respectively for all samples. Future work would be carried out to study the soil spectroscopy measurements using LEDs and photodetector in order to replace the spectrometer usage for soil spectroscopy. This would lead to achieving the primary objective of this research in developing a simple and low cost spectroscopy uses light -emitting diode (LED). AUN??A???A-SEED NET 2016-01-11 Conference or Workshop Item PeerReviewed Mohd. Yusof, Khairunnisa and Ngajikin, Nor Hafizah and Che Abd. Rashid, Nurfatihah (2016) NPK detection using LED based spectroscopy on soil. In: The 9th Regional Conferenceon Electrical and Electronics Engineering RCEEE 2016, 2016, China. http://www.rceee.org/
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TK Electrical engineering. Electronics Nuclear engineering
spellingShingle TK Electrical engineering. Electronics Nuclear engineering
Mohd. Yusof, Khairunnisa
Ngajikin, Nor Hafizah
Che Abd. Rashid, Nurfatihah
NPK detection using LED based spectroscopy on soil
description xSoil spectroscopy measurement is widely used to determine the macronutrient level in soil. This measurement is useful to assist the quality controls of agricultural production, soil fertility and would also helpful in reducing the agricultural cost. This paper details the preliminary optical characterization of soil spectroscopy for the monitoring of soil macronutrient concentration. By using a wavelength corresponding to a macronutrient absorption peak, the Beer -Lambert Law can be used to relate the concentration of macronutrient surrounding the sensing portion to the amount of absorbed light. Based on the peak absorbance level performance, LED wavelengths have been identified in replacing the deuterium and halogen lamps in visible and near infrared wavelength for the concentration measurement of soil macronutrient. The chosen LEDs are in a range from 400nm to 1100nm. From colour reagent, the amount of macronutrient can be detected by observing the intensity of colour -develop solution. This colour -develop solution, then illuminates by deuterium and halogen lamp to measure the peak absorbance . The soil samples have obtained the peak absorbance level for nitrogen and phosphorus at wavelength of 450nm and 780nm respectively . The experimental result shows the absorption line for measured potassium is in a similar pattern, but the maximum absorbance shows in range 400nm to 500nm . By using LEDs, nitrogen, phosphorus and potassium are estimated to absorb blue, red and near -infrared wavelength range respectively for all samples. Future work would be carried out to study the soil spectroscopy measurements using LEDs and photodetector in order to replace the spectrometer usage for soil spectroscopy. This would lead to achieving the primary objective of this research in developing a simple and low cost spectroscopy uses light -emitting diode (LED).
format Conference or Workshop Item
author Mohd. Yusof, Khairunnisa
Ngajikin, Nor Hafizah
Che Abd. Rashid, Nurfatihah
author_facet Mohd. Yusof, Khairunnisa
Ngajikin, Nor Hafizah
Che Abd. Rashid, Nurfatihah
author_sort Mohd. Yusof, Khairunnisa
title NPK detection using LED based spectroscopy on soil
title_short NPK detection using LED based spectroscopy on soil
title_full NPK detection using LED based spectroscopy on soil
title_fullStr NPK detection using LED based spectroscopy on soil
title_full_unstemmed NPK detection using LED based spectroscopy on soil
title_sort npk detection using led based spectroscopy on soil
publisher AUN??A???A-SEED NET
publishDate 2016
url http://eprints.utm.my/id/eprint/66699/
http://www.rceee.org/
_version_ 1643655838453202944
score 13.211869

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