Compost

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wood based compostDecayed organic material used as a plant fertilizer. Compost helps to support healthy plant growth through the slow release of nutrients and the retention of moisture in the soil.

STEPSustainable Technologies Evaluation Program are currently undertaking research into the quality of compostDecayed organic material used as a plant fertilizer. Compost helps to support healthy plant growth through the slow release of nutrients and the retention of moisture in the soil. for use in LIDLow Impact Development. A stormwater management strategy that seeks to mitigate the impacts of increased urban runoff and stormwater pollution by managing it as close to its source as possible. It comprises a set of site design approaches and small scale stormwater management practices that promote the use of natural systems for infiltration and evapotranspiration, and rainwater harvesting. installations.

CompostDecayed organic material used as a plant fertilizer. Compost helps to support healthy plant growth through the slow release of nutrients and the retention of moisture in the soil. shall be stable, humus-like material produced from the aerobic decomposition of organic feedstocks, composted and cured until maturity. CompostDecayed organic material used as a plant fertilizer. Compost helps to support healthy plant growth through the slow release of nutrients and the retention of moisture in the soil. shall be produced under the CompostDecayed organic material used as a plant fertilizer. Compost helps to support healthy plant growth through the slow release of nutrients and the retention of moisture in the soil. Council of Canada’s Compost Quality Alliance (CQA) certification program through testing by an OMAFRA accredited soil laboratory, and certified as category ‘AA’ under Ontario Compost Quality Standards.

Specifications for category 'AA' product under Ontario CompostDecayed organic material used as a plant fertilizer. Compost helps to support healthy plant growth through the slow release of nutrients and the retention of moisture in the soil. Quality Standards

Parameter Acceptable range
pH 5.5 - 8.5
Soluble Salts (EC) < 4 mS/cm
Moisture Content < 50% by weight
Organic matter > 30% by dry weight
C/N ratio 12 to 22
Pathogens See: MOECC 2012
Maturity See: MOECC 2012
Particle size 100% < 12.7 mm (1/2”)
Foreign Material < 1.0% by dry weight > 3 mm
< 0.5% plastic by dry weight
no foreign matter > 25 mm per 500 mL
no sharp foreign matter that could cause harm to humans or animals.
Arsenic ≤ 13 mg/kg dry weight
Cadmium ≤ 3 mg/kg dry weight
Chromium ≤ 210 mg/kg dry weight
Cobalt ≤ 34 mg/kg dry weight
Copper ≤ 100 mg/kg dry weight
Lead ≤ 150 mg/kg dry weight
Mercury ≤ 0.8 mg/kg dry weight
Molybdenum ≤ 5 mg/kg dry weight
Nickel ≤ 62 mg/kg dry weight
Selenium ≤ 2 mg/kg dry weight
Sodium, Percent Saturation < 2%
Zinc ≤ 500 mg/kg dry weight