- Soil pH should be within the range of 4.8 to 5.5. If the pH is above this range, apply two (2.0) pounds of elemental sulfur per 1000 square feet for each one-tenth (0.1) unit the pH is above 5.5 (for medium-textured, silt-loam soils). Use 1/3 more sulfur for fine-textured (clay) soils or 1/3 less sulfur for coarse-textured (sandy) soils than the amount required for medium-textured soils. Apply sulfur at least three months before planting and work into the top three inches of soil. When more than thirty (30.0) pounds of sulfur per 1000 square feet is required, it would be advisable to split the application. Apply two-thirds of the recommended amount and after about three months re-test the soil. If the pH has not been sufficiently reduced, apply the remainder of the material.
- For maintenance apply the following (per 1,000 square ):First spring after planting: two pounds of 15-15-15 or equivalent. Second spring after planting: three pounds of 15-15-15 or equivalent. Third spring after planting: four pounds of 15-15-15 or equivalent. Remaining springs after planting: five pounds of 15-15-15 or equivalent. At least six and twelve weeks after the above maintenance fertilizer applications, apply three pounds of 34-0-0 or similar per 1000 square feet. Maintain the soil pH near 5.0.
- At establishment apply 6 pounds 15-15-15 or equivalent per 1000 square feet.
- At establishment apply 3 pounds 15-15-15 or equivalent per 1000 square feet.