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Calphos Soft Rock Phosphate - Regular Powder
(50 lb)

Brand: Calphos    Item Number: F2101

$19.99

In Stock! Ships from Northern CA.

$19.99

In Stock! Ships from Northern CA.

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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 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
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

Useful Information

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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

Great for my soil type

This has been my staple when planting directly in my otherwise unamended soil! My plants love it!

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Foothill Staple

This is a really cost effective, natural phosphorus supplement. Living in the foothills with phosphorus deficient soil this is a must have.

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