Calphos Soft Phosphate

  • Weight

44.00 35.80 35.800000000000004 USD

44.00

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Weight: 50 lb


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The best natural fertilizer source of phosphorus and calcium. It is comprised of the bony structures of prehistoric marine creatures mined in Florida from the best deposit in the country. An immediately available and a long-term source of phosphorus. Not the same as the hard rock phosphate, sold by most nurseries and farm suppliers, which is not nutritionally as readily available.

  • Averages 20% P2O5 (3% immediately available), 20% Calcium
  • Soft Rock Phosphate Fertilizer should be applied and worked in prior to planting
  • Use at 5 lb per 100 square feet or 1 ton per acre on phosphate deficient soils, less on fertile soils
  • Trees and perennials in vegetable garden for flowering plants, use 1-10 lb per planting hole, depending on plant size
  • Supplies phosphorus (P) and calcium (Ca) for up to 5 years after application, depending on the crop

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