Mastering the rule of garlic and improving the yield of garlic, the fertilizer requirement of garlic is the stringy fleshy fibrous root, which is sensitive to the reaction of fertilizer and water, and has the distinct characteristics of fertilization and fertilizer resistance. Garlic absorbs all kinds of nutrients with the most nitrogen, followed by potassium, calcium, phosphorus and magnesium. In addition, sulfur is a quality component of garlic. Appropriate application of sulfur fertilizer can increase the weight gain of garlic and garlic, and can reduce the abnormal garlic moss and rifle.
In fertilization, you need to master some points.
1. Base fertilizer: Because the roots of garlic are shallow, the root hair is small, and the ability to absorb fertilizer is poor, so the quality of the base fertilizer is high. It is generally better to use decomposed manure or cake fertilizer. In the base fertilizer, some phosphorus and potassium compound fertilizers are usually applied. High-yield garlic is generally applied with 5000-6000 kg of high-quality organic fertilizer and 80-100 kg of cake fertilizer to improve soil fertility and ensure nutrient supply. Acre of NPK compound fertilizer is 25-35 kg.
2. Promote seedling fertilizer: The purpose is to promote the rapid rooting of seedlings after emergence and improve the wintering performance of autumn-sown garlic. The seedling fertilizer is generally carried out about 15 days after emergence. If the fertility is high and the base fertilizer is sufficient, the seedling fertilizer may not be applied, otherwise 10 kg of standard nitrogen fertilizer may be applied per acre.
3. Return to green fertilizer: Generally, the temperature rises in spring, and the heart and roots of garlic begin to grow. The dosage is 10-15 kg of standard nitrogen fertilizer.
4. Moisturizing fertilizer: Generally, it should be carried out when the buds and flower buds are differentiated and the garlic moss is licked. Since it enters the vigorous growth period at this time, the growth amount and the amount of fertilizer required have reached the peak period, so the moxibustion is a key topdressing, and should be re-applied. About 40-50% of the total amount of topdressing. 25-30 kg of NPK compound fertilizer per mu.
5. Reinforcement: Generally, it is carried out 25-30 days after the application of the moxibustion. This time, the topdressing is to meet the needs of the nutrient when the garlic is harvested and the garlic is swollen. The top dressing is mainly based on nitrogen fertilizer, combined with a small amount of phosphorus and potassium fertilizer. The dosage is preferably 20-30% of the total topdressing amount.
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