Generic Materials Search: blended, fertilizers

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View the OMRI Generic Materials List Glossary in PDF format here.
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Aquatic Plant Products
Prohibited
Crop Fertilizers and Soil Amendments, Crop Pest, Weed, and Disease Control
Synthetic
Aquatic plant products are prohibited if they contain synthetic preservatives, such as formaldehyde, are extracted by synthetic solvents not on the National List, or are fortified with otherwise prohibited plant nutrients, including phosphoric acid or solvents that exceed the amount necessary for extraction. Potassium hydroxide extracted aquatic plant products may not be blended with synthetically extracted humic acid derivatives. Aquatic plant products that are chemically reacted with extractants may not be used as plant growth regulators.
205.105(a)
Fertilizers, Blended
Allowed
Crop Fertilizers and Soil Amendments
Synthetic
Must be composed entirely of allowed materials. Each ingredient must be allowed and be from nonsynthetic sources or synthetic sources allowed at 205.601. Must not contain prohibited materials. See also FISH PRODUCTS, MULTI-INGREDIENT – ALLOWED for blends containing fish products. Single ingredient fish products that do not contain added synthetic stabilizers, extractants, preservatives, or nutrients may be blended at any percentage.
205.203
Fertilizers, Blended
Allowed with Restrictions
Crop Fertilizers and Soil Amendments
Synthetic/Nonsynthetic
Fertilizers are restricted if the liquid or solid product contains one or more restricted plant or animal materials as an ingredient. Must not contain prohibited materials including pathogenic organisms, heavy metals, or residues of prohibited substances. Blending and manufacture cannot result in a chemical reaction that is considered synthetic, unless specifically provided for on the National List. See listings for each ingredient. For products containing manure, see MANURE – RAW, UNCOMPOSTED and COMPOST listings.
205.203(d)
Fertilizers, Blended
Allowed
Crop Fertilizers and Soil Amendments
Nonsynthetic
Must be composed entirely of allowed nonsynthetic materials. Each ingredient must be allowed and be from nonsynthetic sources. Must not contain residues of prohibited substances. Must meet pathogen standards.
205.203
Fertilizers, Blended
Prohibited
Crop Fertilizers and Soil Amendments
Synthetic
Prohibited if the product contains any prohibited materials.
205.105(a)
Fertilizers, Blended with micronutrients
Allowed with Restrictions
Crop Fertilizers and Soil Amendments
Synthetic
Use restricted to cases where soil/plant nutrient deficiency for the synthetic micronutrients being applied is documented by soil or tissue testing. See also MICRONUTRIENTS – SYNTHETIC listings.
205.601(j)(6)
Fertilizers, Blended with sodium nitrate
Allowed with Restrictions
Crop Fertilizers and Soil Amendments
Synthetic
Pending additional rule-making, the use of sodium nitrate blended with fertilizers shall follow these stipulations: Before October 21, 2012, operations shall not meet more than 20 percent of an organic crop's nitrogen requirement with sodium nitrate. On or after October 21, 2012, operators using sodium nitrate shall use it in a manner that maintains or improves the natural resources of the operation, including soil and water quality, and comply with crop nutrient and soil fertility requirements. A proposed rule regarding the use of sodium nitrate is forthcoming. (NOP Notice 12-1) See also CHILEAN NITRATE. See Glossary for definition of "Chilean nitrate."
205.105(a); NOP Notice 12-1
Fertilizers, Blended with synthetic magnesium sulfate
Allowed with Restrictions
Crop Fertilizers and Soil Amendments
Synthetic
Fertilizers composed of synthetic and/or nonsynthetic materials that also contain synthetic magnesium sulfate may be used as plant or soil amendments if there is a documented soil deficiency of magnesium sulfate.
205.601(j)(5)
Fertilizers, Blended with uncomposted manure
Allowed with Restrictions
Crop Fertilizers and Soil Amendments
Nonsynthetic
Fertilizers that contain uncomposted manure may only 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 Glossary for definition of "manure."
205.203(c)(1)
Fish Products
Allowed
Crop Fertilizers and Soil Amendments
Nonsynthetic
Animal material. Liquid or dried fish products that contain allowed nonsynthetic stabilizers, extractants, preservatives, or nutrients may be blended with other allowed materials at any percentage rate.
205.105
Fish Products, Multi-ingredient
Allowed
Crop Fertilizers and Soil Amendments
Synthetic/Nonsynthetic
Liquid fish products stabilized with synthetic citric, phosphoric, or sulfuric acid that are blended with other materials must have a final pH of no less than 3.5 measured prior to being formulated with other ingredients permitted in organic production for use as fertilizers and soil amendments. Synthetic ingredients cannot be used to fortify nitrogen, phosphate, or potash levels. Liquid fish products can be pH adjusted using citric, sulfuric, or phosphoric acid.
205.601(j)(7) Liquid fish products—can be pH adjusted with sulfuric, citric or phosphoric acid. The amount of acid used shall not exceed the minimum needed to lower the pH to 3.5.