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Manganese fertilizer: The commonly used manganese fertilizer is mainly manganese sulfate. Generally used as root dressing, soaking seeds, seed dressing, poorly soluble manganese fertilizer is generally used as base fertilizer. When doing basic application, 1-2 kg per mu. Top dressing usually adopts the method of root dressing, and the spraying concentration is 0.05-0.1%. Soaking seed concentration 0.05-0.1%, seed dressing 2-4 grams per kilogram of seeds.
Copper fertilizer: The commonly used copper fertilizer is mainly copper sulfate. Copper fertilizer can be used as base fertilizer, top dressing and seed fertilizer. When the base is applied, 0.8-1.5 kg per mu. Because of the long effective period of copper fertilizer, it is advisable to apply it once every 3-5 years in order to prevent the poisoning effect of copper. Top dressing is usually based on top dressing, and the spraying concentration is 0.01-0.05%. The soaking concentration is 0.01-0.05%, and the seed dressing is 300 mg per kg of seed.
Iron fertilizer: The commonly used iron fertilizer is mainly ferrous sulfate. Iron fertilizer can be used as base fertilizer and top dressing, and it is generally applied by the method of top dressing outside the root. 5 kg per acre when doing basic application. The foliar application concentration is 0.2-1.0%.
Zinc fertilizer: The commonly used zinc fertilizer is mainly zinc sulfate. Zinc fertilizer can be used as base fertilizer, top dressing and seed fertilizer. The poorly soluble zinc fertilizer is generally used as the base fertilizer. When the base fertilizer is used, the zinc sulfate is applied 1-2 kg per mu, and the mild zinc deficiency plot is applied again after 1-2 years. The moderate zinc deficiency plot is reduced every other year or the next year. Apply. When topdressing is used, it is often used as a top dressing. The spraying concentration is 0.01-0.05%. The soaking concentration is 0.02%-0.05%, and the seed dressing is 2-4 grams per kg of seeds.
Molybdenum fertilizer: The commonly used molybdenum fertilizer is mainly ammonium molybdate. Molybdenum fertilizer can be used as base fertilizer, top dressing and seed fertilizer, and is generally used as seed fertilizer (seed seeding, soaking seeds) and top dressing. 50-150 grams per acre when doing basic application. Foliar spray fertilizer is generally used for crops with large leaf area. Spraying ammonium molybdate solution with a concentration of 0.01-0.1% at the seedling stage and bud stage, spraying 1-2 times. When soaking seeds, the seeds may be soaked for 12 hours with a 0.05%-0.1% ammonium molybdate solution, and 2-6 grams per kg of seeds.
Huaxian County Fertilizer Station Zhao Dongli
Boron fertilizer: Commonly used boron fertilizers mainly include borax and boric acid. Boron fertilizer can be used as base fertilizer, top dressing and seed fertilizer. When making base fertilizer, borax or boric acid is generally 0.25-0.5 kg per acre, which can be used together with P and N fertilizers, or can be applied separately. Top dressing usually adopts the method of root dressing, and the spraying concentration is 0.1-0.2%. Seed fertilization is often carried out by soaking seeds and seed dressing methods. The soaking concentration is 0.01-0.1%, and each seed of seed dressing is borax or boric acid 0.2-0.5 g.
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