[High-yield fertilization method for garlic cultivation] Garlic is a bulbous crop that requires a large amount of fertilizer and is more resistant to fertilizer. It is suitable for cultivation in sandy loam soil rich in organic matter, loose and fertile on the surface of the soil, comprehensive in nutrition, and good in water retention and fertilizer.
According to the study: for the production of 1000 kg of fresh garlic, nitrogen needs 4.5-5 kg, phosphorus 1.1-1.3 kg, potassium 4.1-4.7 kg, the ratio is 3:1:3. Therefore, on the basis of fully understanding the growth characteristics and fertilizer characteristics of garlic, the implementation of scientific fertilization is the key to achieving high quality and high yield of garlic.
According to the growth characteristics of garlic and the characteristics of fertilizer, in the fertilization of garlic, it should be based on organic fertilizer, supplemented by chemical fertilizer; base fertilizer, supplemented with topdressing; coarse fertilizer application, fertilizer application principle, maximum Meet the needs of nutrients in the growth and development of garlic.
How can garlic be fertilized to produce high yield?
(1) Applying the base fertilizer:
Because the roots of garlic are shallow, the root hair is small, and the ability to absorb fertilizer is poor, the quality of the base fertilizer (especially for the purpose of harvesting garlic and garlic) is high. It should be based on decomposed manure or cake fertilizer, and a certain amount of phosphorus and potassium should be applied. Mixed fertilizer, generally 5,000 kg of high-quality organic fertilizer per acre, 100 kg of cake fertilizer, 25-35 kg of NPK compound fertilizer.
(2) Early application of seedling fertilizer:
Early application of seedling fertilizer is beneficial to promote the rapid development of roots and shoots after the emergence of garlic, and improve the wintering performance of autumn-sown garlic. The requirement for seedling fertilization is about 15 days after emergence. In addition to high fertility and sufficient base fertilizer, it is not necessary to apply seedling fertilizer. Generally, urea can be applied 15-20 kg per mu.
(3) Increase the application of green fertilizer:
Back to green fertilizer generally rises in spring, when the heart and roots of garlic begin to grow, it is advisable to apply 20-30 kg of urea per mu.
(4) Heavy application of fertilizer:
Generally, it should be carried out when the bud and flower buds are differentiated and the garlic is bred. As it enters the vigorous growth period, the growth amount and fertilizer requirement have reached the peak period, so it is generally required to reapply, accounting for 40%-50% of the total amount of topdressing fertilizer, 25-30 kg of NPK compound fertilizer per mu. .
(5) skillfully apply strong head fat:
The strong head fertilizer should be carried out 25-30 days after the application of the moss fertilizer. The strong head fertilizer is mainly nitrogen fertilizer, combined with a small amount of phosphorus and potassium fertilizer to meet the needs of the garlic and garlic to expand the nutrient. Generally, the high nitrogen compound fertilizer is applied per acre. About kilograms.
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