​​Application

• 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.

Horticultural Applications

• 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.

Market Gardens/Field Vegetables:

• 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

Agricultural Applications

• 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)