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Generic Materials Search: animal, ash, or, plant

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2 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.

Ash – plant or animal
Allowed
Crop Fertilizers and Soil Amendments
Nonsynthetic
Ash from plant and animal sources only. Ashes from burning minerals, manure, or prohibited materials are prohibited. See also MANURE ASH.
205.203(d)(4) & 205.602(a) Ash obtained from the burning of a plant or animal material… [t]hat has not been treated or combined with a prohibited substance.
Wood Ash
Allowed
Crop Fertilizers and Soil Amendments
Nonsynthetic
Wood ash must be produced exclusively from untreated and unpainted wood. Wood stove ashes must not be generated from burning of colored paper, plastic, or other prohibited materials. Excessive applications of ash can cause pH and nutrient imbalances. See ASH – PLANT OR ANIMAL.
205.203(d)(4) Ash obtained from the burning of plant material.