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Tytuł:
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Sustainable Agriculture by Increasing Nitrogen Fertilizer Efficiency Using Low-Resolution Camera Mounted on Unmanned Aerial Vehicles.
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Autorzy:
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Kim DW; Department of Biosystems & Biomaterials Science and Engineering, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea. .
Min TS; Department of Animal Biotechnology, Jeju National University, Jeju 63243, Korea. .
Kim Y; Plant Bioscience, School of Applied Biosciences, Kyungpook National University, Daegu 41566, Korea. .
Silva RR; Institute of Mathematics and Statistics, Federal University of Goias, Goiania 74001-970, Brazil. .
Hyun HN; Department of Plant Resources and Environment, Jeju National University, Jeju 63243, Korea. .
Kim JS; Department of Plant Resources and Environment, Jeju National University, Jeju 63243, Korea. .
Kim KH; National Institute of Agricultural Sciences, Rural Development Administration (RDA), Jeonju 54874, Korea. .
Kim HJ; Department of Biosystems & Biomaterials Science and Engineering, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea. .
Chung YS; Department of Plant Resources and Environment, Jeju National University, Jeju 63243, Korea. .
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Źródło:
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International journal of environmental research and public health [Int J Environ Res Public Health] 2019 Oct 14; Vol. 16 (20). Date of Electronic Publication: 2019 Oct 14.
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Typ publikacji:
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Journal Article; Research Support, Non-U.S. Gov't
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Język:
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English
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Imprint Name(s):
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Original Publication: Basel : MDPI, c2004-
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MeSH Terms:
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Fertilizers*
Nitrogen*
Agriculture/*methods
Crops, Agricultural/*growth & development
Soil/*chemistry
Algorithms ; Chlorophyll/metabolism ; Republic of Korea
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Contributed Indexing:
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Keywords: chlorophyll contents; near infrared; nitrogen fertilizer; normalized difference vegetation index (NDVI)
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Substance Nomenclature:
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0 (Fertilizers)
0 (Soil)
1406-65-1 (Chlorophyll)
N762921K75 (Nitrogen)
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Entry Date(s):
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Date Created: 20191017 Date Completed: 20200302 Latest Revision: 20200302
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Update Code:
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20240105
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PubMed Central ID:
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PMC6843287
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DOI:
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10.3390/ijerph16203893
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PMID:
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31615109
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Nitrogen use efficiency in modern agriculture is very low. It means that a lot of synthetic chemicals are wasted rather than utilized by crops. This can cause more problems where the soil surface is thin and rocky like Jeju Island in the Republic of Korea. This is because overly used nitrogen fertilizer can be washed into the underground water and pollute it. Thus, it would be important to monitor the nitrogen deficiency of crops in the field to provide the right amount of nitrogen in a timely manner so that nitrogen waste can be limited. To achieve this, the normalized difference vegetation index (NDVI) was used to monitor chlorophyll content, which is tightly associated with nitrogen content in the buckwheat field. The NDVI was calculated with the data obtained by a low-resolution camera mounted on an unmanned aerial vehicle. The results showed that the NDVI can estimate the chlorophyll content of buckwheat. These simple but clear results imply that precision agriculture could be achieved even with a low-resolution camera in a cost-effective manner to reduce the pollution of underground water.
Competing Interests: The authors declare no conflicts of interest.
