Abstract: The agronomic prescription product provides a tool and a method to increase crop yield in a defined geographical area, by an amount greater than a specified percentage of a subset of that field's historical yield for that same crop. Specifically, the novel method provides a computer processor (hereafter, “Improved Processor” or “Improved Computer”) improved by the incorporation of an Agronomic Prescription Product which enables the Improved Processor to generate a “prescription” based on crop type, field type, soil conditions, and pest pressure in the field to increase yield by an amount related to historical yield and determined by the Improved Processor (Crop Performance Guarantee). The Improved Processor generates agronomic prescription recommendations tailored to the purpose of increasing crop and plant type yield a certain amount relative to historical yield, along with a guaranteed increase related to the actual yield (Crop Performance Guarantee), should that yield be lower than prescribed.