2 O 5 per 1000 sq. For soil test results greater than 25 lb. 2 O 5 per 1000 sq. Rake the fertilizer into the top one-fourth inch of the soil. The soil test result represents the amount of potassium that is available to the turfgrass plant.
Potassium deficiencies are rare in turf in Indiana soils.
Muriate of potash can burn the turf. Therefore, apply in cool dry weather. Water in the application as soon as possible. Table 2 represents a guide for determining the desired rates of application. Should a deficiency be noted, calcium and magnesium can be added as dolomitic limestone.