CropGuard

Multispectral FAQ

What is Multi-Spectral?

Multi-spectral imagery and analysis is the collection of pictures of plants across the entire spectrum of light in order to determine the health and status of what's below. With that information, targeted applications can be created to help plants reach their maximum potential.

DJI Mavic Multi

What is R-Value?

Before we talk about R-Value let's talk about light - 

The sun gives off light which is made up of Infra-red, the light we see, and ultraviolet wavelengths.

Plants absorb light and reflect unabsorbed light. Measuring and comparing the amount of light being absorbed to reflected is it's R-Value.

How does it work?

The drone takes pictures in Infra-red (IR), Near Infra-red (NIR), our visual light (RGB), and green (G) and composes them together. The result is a comparative heat map that shows the different R-values called an NDVI map.

These NDVI maps are then used to develop targeted application solutions or aid in early detection of disease or problems before they become visible.

DJI Mavic
Kansas Corn
Kansas Wheat
Golf Course Management

Above are three of multispectral examples - (Left) Kansas Corn at R2 Pre-emergent spray; (Middle) Kansas Wheat at flag untreated; (Right) Missouri Golf Course in winter.

Agronomists and Agriculture experts use this data and images to stop problems before they become visible. CropGuard also uses these files to develop variable rate applications specifically suited for your property.

More Coverage - Less Chemicals

For spraying applications, the NDVI map is converted into a prescription map which allows the operator to set not only for average gallons per acre, but the spraying drone will automatically adjust speed and spray rate to apply more-or-less depending on the multispectral data.

The overall outcome generally results in less chemicals being sprayed per acre than a traditional complete saturation.

Variable Rate Application