A practical guide to crop micronutrients, common mineral sources, and how to apply them, from a US-based distributor.
Micronutrients are elements crops need in small amounts, chiefly zinc, copper, iron, manganese, boron, and molybdenum. Even a mild deficiency can cap yield. They are supplied through soluble minerals such as zinc sulfate, copper sulfate, and magnesium oxide, applied to the soil to build reserves or as foliar feeds for fast correction.
Micronutrients are elements crops need in small amounts, chiefly zinc, copper, iron, manganese, boron, and molybdenum. Even a mild deficiency of one can limit yield and quality, because each has a specific role in plant growth. They are supplied through the soil or as foliar feeds when a deficiency is diagnosed.
| Nutrient | Common source | Notes |
|---|---|---|
| Zinc | Zinc sulfate, zinc oxide | Widely deficient; corrects poor growth in many soils |
| Copper | Copper sulfate | Also used in crop-protection and as a feed supplement |
| Magnesium | Magnesium oxide | Supports chlorophyll; used in soil and feed |
Soil application builds or maintains nutrient levels over a season and suits known, ongoing deficiencies. Foliar application delivers a fast, targeted correction when symptoms appear or during critical growth stages. Many programs use both: soil to build reserves, foliar to fine-tune.
Stratus supplies zinc sulfate, copper sulfate, magnesium oxide, zinc oxide, and potassium chloride for crop-nutrition blenders and formulators. See our agricultural minerals range.
The main micronutrients are zinc, copper, iron, manganese, boron, and molybdenum. Crops need them in small amounts, but a deficiency in any one can limit yield and quality.
Zinc sulfate is a soluble zinc source used to correct zinc deficiency in soils and foliar programs, and as a zinc supplement in animal feed.
Soil application builds and maintains levels over a season; foliar application gives a fast, targeted correction when symptoms appear. Many growers use both together.
Stratus Chemical supplies zinc sulfate, copper sulfate, magnesium oxide, zinc oxide, and potassium chloride for agricultural blends. Request a quote with your grade and volume.
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