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Generic Materials Search: trace minerals nonsynthetic

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3 items found.

View the OMRI Generic Materials List Glossary in PDF format here.
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Micronutrients – synthetic
Prohibited
Crop Fertilizers and Soil Amendments
Synthetic
Synthetic micronutrients in either chloride or nitrate forms are prohibited. See AMMONIATED MICRONUTRIENTS. Micronutrients may not be used as a defoliant, herbicide, or desiccant. Synthetic carriers, fillers, chelating, and complexing agents not on the list of allowed synthetics are prohibited. See CHELATES listings. These includes heavy metals, industrial by-products, and other incidental ingredients, unless those substances are within established thresholds, See also other MICRONUTRIENTS – SYNTHETIC listings and TRACE MINERALS – NONSYNTHETIC.
205.105(a) & 205.601(j)(6)
Micronutrients – synthetic
Allowed with Restrictions
Crop Fertilizers and Soil Amendments
Synthetic
Use restricted to cases where soil/plant nutrient deficiency is documented by soil or tissue testing. Micronutrients include: boron, cobalt, copper, iron, manganese, molybdenum, selenium, and zinc. Carriers, fillers, chelating agents, and complexing agents must either be nonsynthetic, or must be on the list of allowed synthetics. See other MICRONUTRIENTS – SYNTHETIC listings, and TRACE MINERALS – NONSYNTHETIC.
205.601(j)(6) As plant or soil amendments… Micronutrients—not to be used as a defoliant, herbicide, or desiccant. Those made from nitrates or chlorides are not allowed. Soil deficiency must be documented by testing. (i) Soluble boron products (ii) Sulfates, carbonates, oxides, or silicates of zinc, copper, iron, manganese, molybdenum, selenium, and cobalt.
Trace Minerals – nonsynthetic
Allowed
Crop Fertilizers and Soil Amendments
Nonsynthetic
See also MINED MINERALS listings and MICRONUTRIENTS listings.
205.203(d)(2)