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COMMENTS (1, 71, 73, 105, 319, 562, 522, 650, 651, 652, 653)

71  Apply 220 lbs Epsom Salts (magnesium sulfate) per acre or a fertilizer containing magnesium.  (When lime is not recommended and soil test magnesium is LOW)

73  Apply 2,200 lbs gypsum per acre.  (When lime is not recommended and soil test calcium is less than 400 lbs calcium per acre)

319  To achieve better color, foliar apply on the turf a liquid solution of iron sulfate (dissolve 5 pounds iron sulfate in 160 gallons of water) including a surfactant (1/8 cup of a dishwasher detergent) per acre, or foliar apply a chelated iron source following label instructions.  A foliar iron treatment should be made in either April or July for locations in the Piedmont and in March, July or September for locations in the Coastal Plain.  Foliar apply the iron-containing solution in the late afternoon and only when the air temperature is greater than 80^oF and soil moisture is adequate for good turf growth. 

522  The soil pH should be lowered cautiously and only when necessary because a low pH (<5.0) can also be detrimental.  To lower the soil pH to an optimal range, consult the Home and Garden Information Center at 1-888-656-9988 for the recommended application rate of elemental sulfur or aluminum sulfate.  (Recommendation when soil pH is greater than 7.0)

562  In the spring when the grass is fully green, apply slow-release nitrogen fertilizer.  Do not over fertilize or apply fertilizer after August 15.