2 items found.
View the OMRI Generic Materials List Glossary in PDF format here.
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Crop Fertilizers and Soil AmendmentsNonsynthetic
Animal material. See Glossary for definition of "blood meal."
Repellents – nonsynthetic
Crop Pest, Weed, and Disease ControlNonsynthetic
Acceptable if derived from a nonsynthetic source, such as blood meal, rotten eggs, hair, or predator scents, provided synthetic additives are not used.