Tennessee Brown Rock

The following product is OMRI Listed. It may be used in certified organic production or food processing and handling according to the USDA National Organic Program Rule.

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Phosphorus Based Fertilizer

0-22-0

P2O5 22%

P2O5 Available 6.0%

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Category NOP: Phosphate Rock
Class Crop Fertilizers and Soil Amendments
Status Allowed
Product Number Cal-3238

Applications

  • Any soil, anytime
  • Does not require a low pH to release
  • Typical application rates range from 300-500+ lbs/acre
  • Increased application rates will create a semi-permanent phosphate reserves that will not leach or tie-up calcium

Benefits

  • Increases photosynthesis
  • Increases forage quality
  • Increases Brix giving insect and disease resistance and added test weight
  • Excellent for microbial stimulation including mycorrhizial formation on roots
  • Excellent calcium source 20%
  • Excellent for composting operations to increase available trace minerals.

Physical Properties

  • A unique Reactive Rock source of natural phosphate with NOP certification for organic use
  • Average content of 22% P2O5
  • Will spread with a spinner cart when dry
  • Hydroscopic ; this product will absorb moisture in rainy or high humidity conditions
  • May require wet lime spreader when very damp

Chemical Analysis

(Dry Basis):

P2O5

P2O5

Fe2O3

CaO

SiO2

Typical:

22.7%

Avail 3.0%

3.5%

39.9%

22.9%

Range %

21.0-25.0

3.0-7.0

3.5-4.5

37.0-41.0

20.0-24.0

Typical Analysis: 0-22-0

Moisture: 10-12% (Hydroscopic)

Bulk Density: 90 lbs/ft3

Specific Gravity: 1.28

Dry Screening

4 mesh: 97%

16 mesh: 78%

50 mesh: 31%

100 mesh: 13%

200 mesh: 3%