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Generic Materials Search: bark

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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.

Bark
Allowed
Crop Fertilizers and Soil Amendments
Nonsynthetic
See also PLANTS.
205.203(c)(3) Uncomposted plant materials.
Biodynamic Preparations
Allowed
Crop Management Tools and Production Aids
Nonsynthetic
Includes horn manure spray (500) horn silica (501), yarrow flowers (502), chamomile (503), stinging nettle (504), oak bark (505), dandelion (506), valerian (507), and horsetail (equisetum) spray (508).
205.105(a)