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Competency Area 4: Nutrient Sources, Analyses, Application Methods


  • Starter fertilizer selection combines many issues.
  • The composition of applied fertilizers should be based on the fertility status of the whole farm.  The only way to really know the status is to have a full set of soil samples!
  • We can no longer ignore manure nutrient contributions, especially those that accumulate in the soil year after year.
  • We can no longer guess at soil fertility any more than we guess at forage samples – we now have the ability to make more informed decisions based on soil samples and other data.
  • Use fertilizer imports to SUPPLEMENT, not SUBSTITUTE for on-farm nutrients.