Geographia Technica, Vol 20, Issue 2, 2025, pp. 218-228
AN ANALYSIS OF ECONOMIC CROP PLANTING CALENDAR USING DATA FROM THE MODERATE RESOLUTION IMAGING SPECTRORADIOMETER ON THE TERRA SATELLITE
Jumpol ITSARAWISUT 
, Tanutdech ROTJANAKUSOL , Chaiphat PLYBOUR, Jumpol ITSARAWISUT , Teerawong LAOSUWAN
ABSTRACT: Agriculture is a highly significant activity for humanity, serving as a primary food source and a cornerstone of many countries’ economies. This research focuses on studying crop planting calendars using data from the Moderate Resolution Imaging Spectroradiometer on the Terra satellite. The study analyzes the Normalized Difference Vegetation Index (NDVI) from May 2022 to December 2023 across various districts in Nong Bua Lam Phu Province. It specifically examines four types of economic crops: rice, fruit trees, perennial trees, and field crops. The study involves random sampling of the largest area within each district and compares these findings to crop planting calendars in the Si Bun Rueang and Suwannakuha districts, with a focus on rice field areas within these two districts. Results indicate distinct differences in NDVI values across times and locations, attributed to varying crop planting cycles in each district. Satellite data clearly illustrate plant growth and changes in NDVI values. This research provides a framework for relevant agencies to manage agricultural water resources more efficiently.
Keywords: Crop Planting Calendar, Economic Crops, Remote Sensing, Terra MODIS, NDVI
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