- For best results, apply wollastonite according to soil test results and agronomic recommendations.
- Application rates will vary according to plant requirements and soil conditions.
- Consider calcium and magnesium requirements in addition to silicon supplementation when using this product as part of a balanced fertility program.
- Greenhouses: Add 6 to 10 pounds of wollastonite per cubic yard of soilless mix (1/4 cup per gallon)
- Home Gardens: Add 1 cup of wollastonite per metre of row at seeding.
- Use 2 tsp. to 1/3 cup of wollastonite per plant at transplanting.
- Topdress plants with 2 tsp. of wollastonite weekly or bi-weekly.
- Broadcast Rates: Spring or fall application; incorporation is recommended.
- Apply at 1.5 to 4 mt/ac. Sandy soils, soils low in organic matter; cucurbits and brassicas will respond to higher rates.
- Banding Rates: Apply at transplant or direct seeding, or as soon as possible after transplant or emergence.
- Cucurbits (squash, pumpkins, melons, cucumbers) - 400-600lbs/ac
- Fruits (tomatoes, peppers, eggplant, etc.) - 150-250lbs/ac
- Brassicas (broccoli, cauliflower, cabbage, kale, etc.) - 400-500lbs/ac
- Legumes, Tubers, Other Vegetables - 400lbs/ac
- Wollastonite can be broadcast in spring or fall. Incorporation is ideal but not necessary.
- Wollastonite can also be banded at seeding or early emergence.
- Broadcast Rates: Apply at 0.5 to 2 mT/ac. Sandy soils, soils low in organic matter; corn, wheat and alfalfa will respond to higher rates.
- Banding Rates: Corn (at seeding, or up to 2-4 leaf stage) - 400-500lbs/ac
- Soybeans (at seeding) 300-400lbs/ac
- Turfgrass and Lawncare: Broadcast at seeding or top-dress during the growing season with 50-80lbs per 1000 square feet (1-1.6mT/ac)