We have most of known ag formulas  in our software (from ag extensions, agphd and other sources). 

Easiest workflow would be: 

- Generate last year synthetic yield map (enter in the system just one number - average or total yield) or in case you have stable year-to-year yield Field Potential map

- Create Rx fertilizer application map based on the Synthetic Yield map, Uptake formulas and yield target
- It would be great if you have soil sample data, then you can calculate rates not just from uptake, but also from soil levels. As stated above, soil sampling could be not the only limiting factor, consider topography, slopes, soil brightness (all these layers we provide automatically).

- Export in any format, shp, iso, send to John Deere (workplan or rx files)


The trial is totally free, 250 acres, 1 month.

Drop me an email if you have any questions.

Example: Calculate fert rates from yield, soil and target yield.

(Fert_rates_from_yield_soil_geopard (full).png)

Fert_rates_from_yield_soil_geopard (full).png (68KB - 10 downloads)