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Application of UAVS to monitor paddy crop growth, chlorophyll, and nitrogen content for informed decision making in water and nutrient management (Record no. 6931)

MARC details
000 -LEADER
fixed length control field	04623nas a2200469 a 4500
005 - DATE AND TIME OF LATEST TRANSACTION
control field	20260817163003.0
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035 ## - SYSTEM CONTROL NUMBER
System control number	.b12396540
099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC)
Classification number	AIT Thesis no.WM-22-13
100 0# - MAIN ENTRY--PERSONAL NAME
Personal name	Waruth Pojsilapachai
245 10 - TITLE STATEMENT
Title	Application of UAVS to monitor paddy crop growth, chlorophyll, and nitrogen content for informed decision making in water and nutrient management
260 ## - PUBLICATION, DISTRIBUTION, ETC.
Place of publication, distribution, etc.	Pathum Thani, Thailand :
Name of publisher, distributor, etc.	Asian Institute of Technology,
Date of publication, distribution, etc.	2022
300 ## - PHYSICAL DESCRIPTION
Extent	63 leaves :
Other physical details	ill.
490 1# - SERIES STATEMENT
Series statement	Thesis;
Volume/sequential designation	no. WM-22-13
500 ## - GENERAL NOTE
General note	A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Water Engineering and Management
502 ## - DISSERTATION NOTE
Dissertation note	Thesis (M. Eng.) - Asian Institute of Technology, 2022
520 ## - SUMMARY, ETC.
Summary, etc.	Fine-resolution satellite images provide useful information in Precision Agriculture (PA). The poor quality of satellite images during lousy weather days limits their field or farm-scale application, while unmanned aerial vehicle (UAV) images have higher resolution than satellite images. It can be used in crop monitoring to optimize plantation management and assess the optimum planting density more accurately. Moreover, the UAVs can perform scheduled flights to survey vegetation areas with accurate and updated maps to detect and deduce the root causes of detected instances of stress in the areas of plant growth. However, the resolution of images for the most widely used satellite images, such as Sentinel-2 (10 m by 10 m), includes vegetation canopies with varying degrees of heterogeneity within single pixels. In particular, the structured nature of rice fields comprising predominantly bare soil and weeds poses challenges when estimating the rice-level biomass and vigor from the coarse-resolution satellite images that present signals averaged over rice canopies and non-canopies (e.g., soil). The main objective of this study is to monitor and analyze crop growth, chlorophyll content, and nitrogen content in the paddy crop and identify critical zones for irrigation management using UAV-based images for informed decision-making at plot scale farming in Thailand. This study examined the relationship between the normalized difference vegetation index (NDVI), the triangular greenness index (TGI), and the green normalized difference vegetation index (GNDVI) utilizing extremely high resolution images captured by a UAV equipped with a multi-spectral imaging filter. The aggregated 2-cm-scale NDVI, TGI, and GNDVI values were compared with Sentinel-2 (10-m) products collected from a rice plot in Nakhon Pathom Province, Thailand, within 16 weeks. Results showed that when upscaling the high-resolution NDVI, TGI, and GNDVI values (by aggregating multi-spectral input bands for NDVI, TGI, and GNDVI) to coarser resolutions in a highly structured paddy field, all VIs correlated in the middle stage of crop growth. Also, it was found that the VIs from the UAV were lower than those from the Sentinel-2, mainly because the UAV had a higher resolution.
650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element	Drone aircraft
General subdivision	Decision making
650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element	Climatic changes
Geographic subdivision	Mekong River Basin
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name	Shanmugam, Mohana Sundaram,
Relator term	Chairperson
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name	Shrestha, Sangam,
Relator term	Examination Committee
700 0# - ADDED ENTRY--PERSONAL NAME
Personal name	Ho Huu Loc,
Relator term	Examination Committee
700 0# - ADDED ENTRY--PERSONAL NAME
Personal name	Sarawut Ninsawat,
Relator term	Examination Committee
710 2# - ADDED ENTRY--CORPORATE NAME
Corporate name or jurisdiction name as entry element	Ministry of Agriculture and Cooperatives,
Relator term	Scholarship Donor
810 2# - SERIES ADDED ENTRY--CORPORATE NAME
Corporate name or jurisdiction name as entry element	Asian Institute of Technology.
Title of a work	Thesis;
Volume/sequential designation	no. WM-22-13
856 40 - ELECTRONIC LOCATION AND ACCESS
Materials specified	Full-Text
Uniform Resource Identifier	<a href="http://203.159.5.9/ait-thesis/detail.php?q=B18056">http://203.159.5.9/ait-thesis/detail.php?q=B18056</a>
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998 ## - LOCAL CONTROL INFORMATION (RLIN)
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Cataloger's initials, CIN (RLIN)	230117
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945 ## - LOCAL PROCESSING INFORMATION (OCLC)
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942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type	40-Archives
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type	67-Electronic Resource
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type	20-AIT Publication
909 ## - LOCAL ITEMS USED
Barcode	Barcode : 30020220004918
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Barcode	Barcode : 30050121064348
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Holdings
Not for loan	Home library	Current library	Shelving location	Date acquired	Full call number	Barcode	Date last seen	Copy number	Price effective from	Koha item type	Cost, normal purchase price
Available for Loans	Asian Institute of Technology Library	Asian Institute of Technology Library	Archives	17/08/2026	AIT Thesis no.WM-22-13	30020220004918	17/08/2026	1	17/08/2026	40-Archives
Available for Loans	Asian Institute of Technology Library	Asian Institute of Technology Library	Archives	17/08/2026	AIT Thesis no.WM-22-13		17/08/2026		17/08/2026	67-Electronic Resource
Available for Loans	Asian Institute of Technology Library	Asian Institute of Technology Library	AIT Publications	17/08/2026	AIT Thesis no.WM-22-13	30050121064348	17/08/2026	1	17/08/2026	20-AIT Publication	50.00
Available for Loans	Asian Institute of Technology Library	Asian Institute of Technology Library	AIT Publications	17/08/2026	AIT Thesis no.WM-22-13	30050121064280	17/08/2026	2	17/08/2026	20-AIT Publication	50.00

Application of UAVS to monitor paddy crop growth, chlorophyll, and nitrogen content for informed decision making in water and nutrient management (Record no. 6931)

AIT

Asian Institute of Technology Library