It’s the time of the year when the crops are becoming established and the in-crop fertiliser decisions are upon us. One of the recent mapping tools that has become readily available are NDVI (Normalised Difference Vegetation Index) which is satellite data that captures the biomass of your crop from an aerial perspective. NDVI imagery is easy to get hold of these days and many sites will allow you to view your farm for free.
PCT’s AgCloud software however allows you to go one step further. Using boundaries of your farm, the maps can be ‘sliced’ and stacked or viewed against your other map layers and they’re yours to keep. They can also then be used to make prescription maps for fertiliser spreading throughout the season. Jess Koch – Breezy Hill Precision Ag Services says, ‘as a consultant I find the linkages between the PCT software and the John Deere MyOperations Centre brilliant. After making a prescription map from a soil, yield or NVDI imager layer, I am able to export it straight to the Operations Centre and send it directly to the machine applying it.’
The PCT AgCloud imagery will automatically ‘drop’ an NDVI image in to your PCT account every 7-10 days. Jess says ‘from here, we are able to compare NDVI maps over to time to produce a change detection map. This gives a great visual indication of where crops are going backwards or improving in the time between two images. The reasons why may or may not be known to the farmer, but the change detection map at least quantifies the areas and opens up the idea for more investigation.
An example of using a protein (left) and NDVI Map from May 30th 2019 (right), to create a Urea trial
If PCT NDVI imagery or any other map or trial design is of interest to you, please contact Jessica Koch 0407986557 or talk to your local Pringles Crouch branch manager who will be happy to refer you.