How should micronutrient fertilizers be applied rationally? Master these three key points

Micronutrient fertilizer is the abbreviated term for trace element fertilizer, fertilizers that provide plants with trace elements. Fertilizers such as copper fertilizer, boron fertilizer, molybdenum fertilizer, manganese fertilizer, iron fertilizer and zinc fertilizer are all called micronutrient fertilizers. They are mainly some inorganic salts and oxides, mostly by-products or waste materials from mining and metallurgy, and can be used to formulate multi-element fruit tree foliar fertilizer, vegetable foliar fertilizer and compound fertilizer.

Apply according to the crop

Different crops have different requirements for various micronutrient fertilizers. For example, rice needs silicon; rapeseed, leguminous crops and others need boron; garlic and onion need selenium.

Apply according to the soil

Different soils contain different types and amounts of trace elements. Only by understanding which element the soil lacks can the corresponding element fertilizer be supplemented effectively. For example, for boron deficiency and zinc deficiency, it is only classified as micronutrient fertilizer deficiency when the boron content is below 0.5 parts per million and the zinc content is below 1.5 parts per million. Before figuring it out, a small-area trial can be conducted before applying over a large area.

Apply an appropriate amount

Micronutrient fertilizers are generally used as base fertilizer. Apply 100-200 grams of boron per mu, or 100-150 grams of zinc fertilizer, or 100-250 grams of ferrous sulfate, or 510 grams of copper sulfate. Arbitrary excessive application must be avoided.