Manganese Sulfate 31% Powder (5 lb bag)

Manganese Sulfate 31% Powder (5 lb bag) is a highly soluble micronutrient supplement that corrects manganese deficiencies and supports healthy plant development. Manganese plays a key role in photosynthesis, enzyme activation, and nitrogen metabolism, helping plants build strong roots, lush foliage, and resistance to stress.

At a glance

• Type: Water-soluble micronutrient supplement
• Analysis: 31 percent manganese, 18 percent sulfur
• Form: Powder
• Size: 5 lb bag
• Application: Soil, foliar spray, or fertigation

Best for

• Correcting yellowing leaves and stunted growth
• Supporting photosynthesis and nitrogen use
• Field crops, orchards, and greenhouses
• Hydroponic and fertigation systems
• Improving nutrient uptake and stress tolerance

How to use

For soil application, broadcast 20 to 60 lb per acre pre-plant or at planting, or use 10 to 30 lb per acre banded or side-dressed, ideally with at least 50 lb of ammonium sulfate per acre. For foliar feeding, apply 1 to 3 lb per acre to actively growing plants just before full leaf expansion, ensuring thorough coverage. It is also compatible with irrigation systems for even distribution.

About Grow Organic

Grow Organic supplies seeds, plants, and garden supplies for organic and sustainable growing, helping home gardeners and small farms cultivate healthy, productive gardens.

Sold by Grow Organic, based in Grass Valley, California.