§ 205.602 Nonsynthetic substances prohibited for use in organic crop production. | |||
| (a) | Ash from manure burning. | ||
| (b) | Arsenic. | ||
| (d) | Lead salts. | ||
| (e) | Potassium chloride—unless derived from a mined source and applied in a manner that minimizes chloride accumulation in the soil. | ||
| (f) | Sodium fluoaluminate (mined). | ||
| (h) | Strychnine. | ||
| (i) | Tobacco dust (nicotine sulfate). | ||
Saturday, April 1, 2017
Natural Substances Prohibited by USDA for use in Organic Crop Production
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