Where do the nitrogen recommendations in the report come from?

Nitrogen recommendations are not based on routine soil analysis. This is due to the many climatic, chemical and biological factors that influence the amount of nitrogen present in a soil at any given time. Instead of a soil analysis, nitrogen recommendations are based on research results from field experiments to determine the best application rate to attain optimum growing conditions for selected crops. 

Click here to read more about why SoilKit doesn't test for nitrogen.