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Digital Farming: Free Satellite Imagery & NDVI Maps

Updated June 17, 2025
Professional portrait of Ali Nafchi

Ali Mirzakhani Nafchi

Assistant Professor & SDSU Extension Precision Agriculture Specialist

Written collaboratively by Ali Mirzakhani Nafchi, Karishma Kumari, Jose Payero, Hankui Zhang and John McMaine

Fact sheet about the benefits and accessibility of using satellite imagery and NDVI maps in modern farming. This fact sheet explain: how satellite imagery works, highlight the advantages, encourage adoption of digital tools in farming without requiring technical expertise.