--- title: What is NDVI? description: NDVI measures the state and health of open field crops or crop vigor. --- [Skip to content](https://knowledge.agro-scout.com/what-is-ndvi#main-content) - [English](https://knowledge.agro-scout.com/what-is-ndvi) - [Français](https://knowledge.agro-scout.com/fr/quest-ce-que-le-ndvi) English Show submenu for translations [Contact us](https://knowledge.agro-scout.com/kb-tickets/new?hsLang=en) ![AgroScout_logo_Big_High_Resolution-(1).png\]](https://knowledge.agro-scout.com/hs-fs/hubfs/AgroScout_logo_Big_High_Resolution-(1).png?height=40&name=AgroScout_logo_Big_High_Resolution-(1).png) - [Default HubSpot Blog](https://8371915.hs-sites.com/blog) Open main navigation Close main navigation - [Default HubSpot Blog](https://8371915.hs-sites.com/blog) - - [English](https://knowledge.agro-scout.com/what-is-ndvi) - [Français](https://knowledge.agro-scout.com/fr/quest-ce-que-le-ndvi) English Show submenu for translations - [Contact us](https://knowledge.agro-scout.com/kb-tickets/new) - Go to agro-scout.com Go to agro-scout.com Hello. How can we help you? - There are no suggestions because the search field is empty. 1. [Help Center](https://knowledge.agro-scout.com/?hsLang=en) 2. [Reports](https://knowledge.agro-scout.com/reports?hsLang=en) # What is NDVI? ## NDVI measures the state and health of open field crops or crop vigor.   **When Should I use NDVI?** NDVI values obtained with satellite data with high resolution strongly correlate with crop phenological stages (emerged, maturity, harvest). **Frequent NDVI reports and images** are a powerful tool for measuring crop productivity and predicting future yield, as well as checking the field status. AgroScout provides from 1-2 satellite images monthly.   **How does it look on my farm the crop without NDVI?** AgroScout software allows you to visualize as a normal map your farm and its surrounding as the image below.   ![PIVO22-Agroscout](https://knowledge.agro-scout.com/hs-fs/hubfs/PIVO22-Agroscout.png?width=688&name=PIVO22-Agroscout.png) With NDVI, you can see your farm throughout the year, as in the image below.   ![PIVO 22-NDVI](https://knowledge.agro-scout.com/hs-fs/hubfs/PIVO%2022-NDVI.png?width=688&name=PIVO%2022-NDVI.png) **How do you read NDVI imagery?** Traditionally, NDVI results are presented as a color map, where each color corresponds to a specific range of values. There's no standard color palette, but most software uses the "red-green" one, meaning that red-orange-yellow tints indicate bare soil or dead/sparse vegetation, and all shades of green are a sign of ordinary to dense vegetation cover. NDVI is calculated with the following expression: **NDVI = (NIR-Red) / (NIR+Red)**, where NIR is near-infrared light and Red is visible red light. **What does red mean in NDVI?** When applying the formula, bright green indicates high NDVI, whereas Red **has low NDVI**. So it's quantifying vegetation by measuring the difference between near-infrared (which vegetation strongly reflects) and red light (which vegetation absorbs).   **What is green in the NDVI images?** The green spectrum in the range on all shades of green is a sign of ordinary to dense vegetation cover.   #### Is NDVI Value Different For Different Crops? It certainly is. Every crop type has a different canopy structure and growth stages and requires specific climatic conditions to grow correctly. All these factors influence crop reflectance properties and, as a result, produce different NDVI values across various crop types.   Download our one-pager info on NDVI [**here.**](https://knowledge.agro-scout.com/hubfs/Brochure%20NDVI%20(1).pdf?hsLang=en)   **If you need further information and a quote, please get in touch with us at** [**sales@agro-scout.com**](mailto:sales@agro-scout.com)     - [Getting started with AgroScout](https://knowledge.agro-scout.com/getting-started-with-agroscout?hsLang=en#main-content) - [Getting Started](https://knowledge.agro-scout.com/getting-started-with-agroscout?hsLang=en#getting-started) - [Onboarding with AgroScout](https://knowledge.agro-scout.com/getting-started-with-agroscout?hsLang=en#onboarding-with-agroscout) - [AgroScout Sky App](https://knowledge.agro-scout.com/agroscout-sky-app?hsLang=en#main-content) - [Create, Save and Operate Scouting Missions](https://knowledge.agro-scout.com/agroscout-sky-app?hsLang=en#create-save-and-operate-scouting-missions) - [Image Uploading](https://knowledge.agro-scout.com/agroscout-sky-app?hsLang=en#image-uploading) - [Mobile App](https://knowledge.agro-scout.com/mobile-app?hsLang=en) - [AgroScout Web Platform](https://knowledge.agro-scout.com/agroscout-web-platform?hsLang=en) - [Troubleshooting](https://knowledge.agro-scout.com/troubleshooting?hsLang=en#main-content) - [Sky App Troubleshooting](https://knowledge.agro-scout.com/troubleshooting?hsLang=en#sky-app-troubleshooting) - [FAQ](https://knowledge.agro-scout.com/faq?hsLang=en#main-content) - [Drones and Flight FAQ](https://knowledge.agro-scout.com/faq?hsLang=en#drones-and-flight-faq) - [General FAQ](https://knowledge.agro-scout.com/faq?hsLang=en#general-faq) - [Reports](https://knowledge.agro-scout.com/reports?hsLang=en) - [Resources](https://knowledge.agro-scout.com/resources?hsLang=en#main-content) - [Webinars](https://knowledge.agro-scout.com/resources?hsLang=en#webinars) - [Potatoes](https://knowledge.agro-scout.com/resources?hsLang=en#potatoes) - [Soybean](https://knowledge.agro-scout.com/resources?hsLang=en#soybean) - [Corn](https://knowledge.agro-scout.com/resources?hsLang=en#corn) - [Agroscout LITE](https://knowledge.agro-scout.com/agroscout-lite?hsLang=en) - [Default HubSpot Blog](https://8371915.hs-sites.com/blog) [![Chill listening crop-3](https://knowledge.agro-scout.com/hs-fs/hubfs/AgroScout_logo_Big_High_Resolution-(1).jpg?width=77&height=24&name=AgroScout_logo_Big_High_Resolution-(1).jpg "Chill listening crop-3")](https://agro-scout.com/) agro-scout.com Help Center Copyright © 2026, AgroScout