Generic Materials Search: aquatic plant products synthetically extracted

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View the OMRI Generic Materials List Glossary in PDF format here.
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Aquatic Plant Products – synthetically extracted
Allowed
Crop Fertilizers and Soil Amendments
Synthetic
Nonsynthetic extracts are allowed. Synthetic extraction process is limited to the use of potassium hydroxide or sodium hydroxide; solvent amount used is limited to that amount necessary for extraction. Aquatic plant products are prohibited if they contain synthetic preservatives such as formaldehyde, or are fortified with otherwise prohibited plant nutrient sources.
205.601(j)(1) As plant or soil amendments… Aquatic plant extracts (other than hydrolyzed)—Extraction process is limited to the use of potassium hydroxide or sodium hydroxide; solvent amount used is limited to that amount necessary for extraction.
Potassium Hydroxide
Prohibited
Crop Fertilizers and Soil Amendments, Crop Management Tools and Production Aids
Synthetic
See also AQUATIC PLANT PRODUCTS – SYNTHETICALLY EXTRACTED and HUMIC ACIDS – ALKALI EXTRACTED.
205.105(a)
Sodium Hydroxide
Allowed with Restrictions
Crop Management Tools and Production Aids, Crop Pest, Weed, and Disease Control
Synthetic
May be used as both an adjuvant or inert ingredient in combination with active pesticidal ingredients [excluding 25(b) exempt pesticides]. See also INERTS – LIST 4. May also be used to produce aquatic plant extracts; solvent amount used is limited to that amount necessary for extraction. See also AQUATIC PLANT PRODUCTS – SYNTHETICALLY EXTRACTED.
205.601(m) & 205.601(j)(1)