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Generic Materials Search: compost, mushroom

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5 items found.

View the OMRI Generic Materials List Glossary in PDF format here.
Click on the arrow or the material name to view more details about each material.

Compost
Prohibited
Crop Fertilizers and Soil Amendments
Nonsynthetic
Compost that contains the following is prohibited: sewage sludge, synthetically fortified compost starter, glossy paper, and materials containing colored ink. Compost is prohibited if it contributes to the contamination of crops, soil, or water by plant nutrients, pathogenic organisms, heavy metals, or residues of prohibited substances. See also MICROBIAL PRODUCTS listings for information on compost starters, SEWAGE SLUDGE, and MUSHROOM COMPOST. See Glossary for definition of "compost."
205.203(c) & (e)
Compost – windrow (plant and animal materials)
Allowed
Crop Fertilizers and Soil Amendments
Nonsynthetic
Plant and animal materials are composted through a process that establishes an initial C:N ratio of between 25:1 and 40:1 and maintains a temperature of between 131°F and 170°F for 15 days, during which period the composting materials must be turned a minimum of five times. Acceptable feedstocks include, but are not limited to, animal manure, by-products of agricultural commodities processing, and source-separated yard debris or "clean green." Compost must not contain more than 1x10³ (1,000) MPN fecal coliform per gram of compost sampled and must not contain more than 3 MPN Salmonella per 4 grams of compost sampled. See also MICROBIAL PRODUCTS for information on compost starters, other COMPOST listings, SEWAGE SLUDGE, and MUSHROOM COMPOST. See Glossary for definition of "compost."
205.203(c)(2)(i) & (iii) Composted plant and animal materials.
Mushroom Compost
Allowed
Crop Fertilizers and Soil Amendments
Nonsynthetic
Mushroom media waste (see MUSHROOM MEDIA WASTE listings) that has been composted according to §205.203(c)(2) either before mushroom production or after mushroom production and does not include other, noncomposted materials, is considered “mushroom compost.” See also COMPOST listings.
205.203(c)(2)
Mushroom Media Waste
Allowed
Crop Fertilizers and Soil Amendments
Nonsynthetic
Must be composed of Allowed materials. See also MUSHROOM COMPOST for mushroom media waste that has been composted according to NOP requirements.
205.105
Mushroom Media Waste
Allowed with Restrictions
Crop Fertilizers and Soil Amendments
Nonsynthetic
Waste from mushroom production that contains animal manure that has not been fully composted is subject to uncomposted manure restrictions: may be (i) applied to land used for a crop not intended for human consumption,(ii) incorporated into the soil not less than 120 days prior to the harvest of a product whose edible portion has direct contact with the soil surface or soil particles, or (iii) incorporated into the soil not less than 90 days prior to the harvest of a product whose edible portion does not have direct contact with the soil surface or soil particles. See also MANURE – RAW, UNCOMPOSTED and MUSHROOM COMPOST.
205.203(c)(1)