Sulfur - 5#

Sulfur - 5#

Agricultural Sulfur. 90% elemental sulfur, 10% bentonite clay. Use to lower soil pH (make it more acidic). Often helpful for both lowbush and highbush blueberries, and for potatoes. Lowering the pH of gravel paths will help control weed growth. Not fine enough to be spread as a fungicide, comes in small pastilles like yellow button candy. Even in soils with correct pH, small amounts of sulfur are necessary for chlorophyll formation, the metabolism of nitrogen, and the synthesis of oils. Nutritional deficiency of sulfur is most likely on sandy soils low in organic matter. Application rates for pH correction are typically 500–1500#/acre (depending on current pH, target pH and soil type), with no more than 1000#/acre applied at once. To address nutritional deficiency of sulfur, apply 10–30#/acre, thoroughly blended into a larger quantity of fertilizer for even application. Sulfur oxidizing bacteria are inactive below 55°—don’t trust soil test results showing “sulfur deficiency” from samples taken early or late in the season. Wait to apply until soil temp is at least 60°. 

The 2022 Bulk Order is closed. Ordering will reopen for the 2023 NOFA Tri-State Bulk Order on January 1st, 2023.

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