Limit total N applied to 20 pounds per acre per year. Phosphorus Surface applications of P can only move into the surface inch of soil and may not reach the roots. A band of subsurface applied P at the drip line may be more effective in correcting P deficiencies in the short-term. The best method is application before planting to allow incorporation into the soil. Also P can be immobilized at high and low pH. Adjust soil pH to 5.5 - 6.0 to increase P availability.
Potassium fertilizers can burn shallow roots if applied at high levels.
Use split applications to reduce chance of injury. The pH on acid soils can be increased by limestone applications. When Mg is low, use dolomitic limestone. The soil test results will include the limestone recommendation. To lower high pH several fertilizer sources are useful.