AgroCares is happy to announce that soon NDVI values will be displayed on the farmer portal. Learn more about the NDVI and how it can be used on the Portal in this article.
What is the NDVI?
The NDVI (Normalized Difference Vegetation Index) quantifies the greenness of the vegetation by measuring the difference between near-infrared (the part that is strongly reflected by plants) and red light (absorbed by plants).
NDVI standard values range from -1 to +1. Thereby values can be interpreted with -1 which is determined as a low level of ‘greenness’ and is in fact likely to be water, while a value of +1 is likely to represent dense green coverage (leaves). A value that is close to 0 could potentially be urban areas or places that are not covered with plants.
How can this information be of value to farmers?
The NDVI can give valuable information to farmers when it comes to precision farming (spotting weak areas in your field), measuring biomass, evaluation of the crop stage and especially monitoring of field biomass over time.
Since the NDVI gives information about how much near infrared/ green light is reflected by the vegetation and healthy vegetation (or close to harvest) (chlorophyll) reflects more near infrared than vegetation that is at an early growing stage or unhealthy (absorb more red and blue light), it can provide information about growth stages and plants health.
Integration into the Farmer Portal
For all the Farmer Portals AgroCares integrated an overview of the NDVI values for each registered field. To determine the NDVI value Satellite information is being used and reported every 2-5 days, depending on the cloud coverage.
In the Farmer Portal the users will find the option to view the current NDVI value per field – with an indication bar ranging from 0.0 – 1.0. Additionally, the users can find an NDVI chart which allows monitoring NDVI over longer periods of time together with a date overview which shows the dates when NDVI values were collected and which days were too cloudy to retrieve any information.
If you are interested in more information about NDVI or have further question please contact firstname.lastname@example.org