Calphos Soft Rock Phosphate - Regular Powder
(50 lb)

Colloidal Phosphate for Slow-Release

Brand: Calphos    Item Number: F2101

$19.99

In Stock! Ships from Northern CA.

$19.99

In Stock! Ships from Northern CA.

Buy Big, Save Big! As low as $15.99 each!
  • Buy 10 for $17.99 each
  • Buy 40 for $15.99 each

Description

The best natural 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% Ca
  • Soft Rock Phosphate should be applied and worked in prior to planting
  • Use at 5 lb/100 sq.ft. or 1 ton/acre on phosphate deficient soils, less on fertile soils
  • Trees and perennials, use 1-10 lb per planting hole, depending on plant size
  • Supplies P and Ca for up to 5 years after application, depending on the crop

Characteristics

Fertilizer Type Powdered/Granulated/Meal Major Nutrients Over 3% Phosphorus, Calcium, Trace Minerals
Organic Certifier OMRI, CDFA Organic Status Approved for Use in Certified Organic Agriculture
Nutrient Release Rate Long-term (4+ Months) Use as Foliar No
Animal-Based No
Fertilizer Type Powdered/Granulated/Meal
Major Nutrients Over 3% Phosphorus, Calcium, Trace Minerals
Organic Certifier OMRI, CDFA
Organic Status Approved for Use in Certified Organic Agriculture
Nutrient Release Rate Long-term (4+ Months)
Use as Foliar No
Animal-Based No

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Shipping Information

Does not qualify for Flat Rate Shipping. Cannot be combined with other items in a package, due either to its size or manufacturer packaging.

Shipping Weight: 55.00 lbs. Dimensions: 20"L x 13"W x 4"H

Reviews

Long Lasting

Reviewed by on

As usual the product and the service were great.

As usual the product and the service were great. It was ready in time and easy to pick up.

Reviewed by on

Best product for foothill soils

Still one of the best deals for our foothill soils, typically low in phosphates. Wish the price did not keep climbing, remember when it was about 8 bucks per bag for years...

Reviewed by on

Seems like a good product for an affordable price

I have used this product in planting a tree. It is too soon to know the outcome yet. I'm hoping for a healthy tree.

Reviewed by on

Great!

Great, my garden is happy!

Reviewed by on

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