1. Zinc fertilizer is mainly made of zinc sulfate, which can be used as base fertilizer, seed fertilizer and topdressing fertilizer. It uses 1 to 1.5 kilograms of zinc sulfate per acre and spreads it as base fertilizer. However, it cannot be mixed with phosphate fertilizers. The solution can be soaked in 0.1% solution, seed dressing (1 gram of zinc sulfate per kilogram of seed) or 0.01 to 0.05% zinc sulfate for foliar dressing. 2. Boron fertilizer contains borax, boric acid, boron magnesium fertilizer, boron-containing superphosphate, etc. Among them, boron magnesium fertilizer and calcium borate are mainly used as base fertilizer. The dosage per acre is 20-30 kg, 40-50 kg, borax and Boric acid is generally used as a top dressing, with a concentration of 0.01%, and it can also be soaked in 0.1% boric acid or borax. 3. Ammonium molybdate is commonly used as molybdenum fertilizer, which can be used as base fertilizer, seed fertilizer and top dressing. Seed soaking time of 0.05% to 0.1% soaking time is 12 hours, outside the top dressing concentration of 0.02% to 0.05% in the seedling stage and pumping vine spray best. 4. Copper commonly used copper sulfate. Can be used as basal fertilizer, the amount of 0.1-0.3 kg per mu, can be used 0.1% solution soaking, 0.05% solution can also be used outside the root dressing.
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