# COMAR Title 15 — Maryland Department of Agriculture

## Subtitle 22 — Organically Produced Commodities

### Chapter 02 — Organic Product Standards

#### Regulation .04 Soil Amendments and Fertilizers.

*COMAR 15.22.02.04*

A. A producer may use any of the substances or practices in §B of this regulation.

B. A producer shall follow label instructions, when applicable, when using the following substances:

  (1) Adjuvants and wetting agents (organic);

  (2) Animal manures;

  (3) Biodynamic preparations;

  (4) Blood meal;

  (5) Bone meal;

  (6) Boron/borax;

  (7) Chelates and fritted trace elements;

  (8) Composts;

  (9) Diatomaceous earth;

  (10) Dolomite;

  (11) Epsom salts;

  (12) Fallowing;

  (13) Fish emulsion;

  (14) Fish meal;

  (15) Gibberellic acid and other naturally occurring growth regulators;

  (16) Green manures;

  (17) Greensand;

  (18) Ground oyster, clam, lobster, crab shells;

  (19) Gypsum;

  (20) Hoof and horn meal (low lead);

  (21) Kelp or seaweed meals, extracts, and algae;

  (22) Legumes as cover crops;

  (23) Limestone;

  (24) Microbial compost or soil inoculants;

  (25) Micronutrients (dry and foliar);

  (26) Molybdenum (various);

  (27) Mulches;

  (28) Peat moss;

  (29) Perlite;

  (30) Potassium sulfate;

  (31) Rock or colloidal phosphate (low heavy metals);

  (32) Sawdust;

  (33) Sulfate of iron, manganese, and molybdenum;

  (34) Sulfate of zinc, boron, copper;

  (35) Sulfur (elemental);

  (36) Sul po mag (langbeinite);

  (37) Vermiculite;

  (38) Wood ashes;

  (39) Worm castings; or

  (40) Any other substance or practice approved by the Department.

C. A producer may not apply any allowed soil amendment or fertilizer at a rate that exceeds that recommended by an agency or a laboratory approved by the Department.

D. A producer shall forward to the Department the label and any other instructions for any product approved by the Department but not listed in this regulation.