Seal of Testing Assurance (STA)
 
If it's not STA, what is it? Top quality compost produced under guidelines outlined in the United States Composting Council's Seal of Testing Assurance Program.
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Product Specifications - SoilPro Products Compost is sold in bulk form, by the cubic yard or ton.

Available as SoilPro Premium Compost

  • Premium - finely screened for turf topdressing (>3/8")

    • ​Processed and stored inside, improving product consistency and ease of handling (never clumpy or wet)

Guaranteed Minimum Nutrient Analysis

  • Total Nitrogen......................................................1.5 %

    • 1.4%..........Water Insoluable Nitrogen

    • 0.1%..........Water Soluable Nitrogen

  • Available Phosphate (P2O5).............................. 2.0 %

  • Soluable Potash (K2O)....................................... 0.4 %

  • Iron......................................................................... 2.0 %

Ingredient List:

  • Composted biosolids (treated sewage sludge), forestry products, yard trimmings and stable bedding.

  • Information regarding contents and levels of trace elements in this product are available on the internet at http://www.aapfco.org/metals.htm.

PREMIUM COMPOST SUMMARY

A summary based on the results of the analysis performed on the sample received by Soil and Plant Laboratory on April 23, 2014 is provided below.

  • Reaction (pH): 7.1

  • Qualitative lime: None

  • Salinity (ECe): 13.7 dS/m 7.8 dS/m after leaching

  • Carbon / nitrogen ratio: 14.9

Fertility on a dry weight basis:

At an application rate of 2 cyd. per 1000 sq. ft. to a 6-inch depth, this amendment is expected to provide enough nitrogen, phosphorous, potassium and sulfate to correct any deficiencies of those nutrients in a low fertility soil. Some copper and zinc as well as small amounts of calcium, magnesium, manganese, and iron would be supplied.

Physical properties

  • Bulk density (at 35.9% moisture) 637 lbs. per cyd.

  • % organic matter on dry weight basis 68.3%

  • % water (as received) 35.9%

  • Particle size distribution (dry weight of % passing)

    • 1 inch – 100%

    • ½ inch – 98.8%

    • ¼ inch – 90.7%

    • 0.5 mm (dust) – 23.9%

A typical use rate for this product in a landscape situation would be 2 cyds. per 1000 sq. ft. incorporated to a 6-inch depth and should be followed with adequate leaching irrigations. If used in nursery containers, this material should not exceed 10% of the mix by volume. A typical rate for agricultural application would be 10 tons per acre. A typical use rate for this product as a topper would be 1/3 cyds. per 1000 sq. ft.

Nutrient

Total Nitrogen

Mineralized Nitrogen (immediately available)

Organic Nitrogen (Slow release)

Total Phosphorus (as P2O5)

Total Potassium (as K2O)

Total Iron content

Total Manganese

Total Zinc

Total Copper

% of sample

2.75

0.543

2.21

5.2433.4 lbs.

0.533.38 lbs.

5.2433.38 lbs.

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Per cyd.

17.52 lbs.

3.43 lbs.

14.09 lbs.

33.4 lbs.

3.38 lbs.

33.38 lbs.

2.55 ozs.

6.53 ozs.

2.89 ozs.​ 

Contact
 
12645 6th St.
Rancho Cucamonga
CA 91739
Phone: 909-993-1500

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