Speaking of garlic, I believe that friends in rural families will plant it. It is a very common ingredient. It will be more fragrant and delicious. Then the following small series mainly tells you which kind of fertilizer is better when planting garlic, how to apply fertilizer.
First, what kind of fertilizer is best for growing garlic?
1. Garlic has a long growing period and requires a lot of fertilizer. It masters the principle of “organic fertilizer-based, fertilizer-assisted; base fertilizer-based, top-dressing supplementedâ€. The fertilization of garlic is divided into base fertilizer and topdressing. The basic fertilizers are mainly organic fertilizers. The application rate is directly related to the commercial properties of garlic and the wintering performance of plants. It is generally required to apply 2,500 to 3,000 kg of pig fat, or 4,500 to 5,000 kg of manure, and the temperature rises in spring. When the heart and roots of garlic begin to grow, the green fertilizer is recovered. It is suitable for 15-20 kg per mu of urea. The differentiation of garlic from bud and flower bud to convulsion is the advancing period of vegetative growth and reproductive growth. Therefore, in addition to nitrogen fertilizer, stimulating fertilizer should be applied with phosphate fertilizer, and 20~30 kg of NPK compound fertilizer can be applied. The swelling period of garlic stem is the peak period of nutrient absorption. It should be based on quick-acting nitrogen fertilizer and combined with phosphorus and potassium fertilizer. This topdressing should account for 25% to 30% of the total topdressing.
2. In addition, the application of sulfur fertilizer can increase the flavor of garlic and have a positive effect on improving the quality of garlic. Experiments show that sulfur application can significantly increase the content of allicin, soluble sugar, soluble protein, free amino acid and vitamin C in garlic bulb and garlic.
Second, how to fertilize garlic?
1. Characteristics of garlic fertilization
Garlic needs to be fat and resistant to fertilizer, requiring a large amount of fertilizer, but the amount of fertilizer is small, and the application of organic fertilizer has a significant increase in yield. Garlic requires less fertilizer during the seedling stage, and requires more nutrients during the vigorous growth period of the leaves and the rapid expansion of the phosphorus stems. From the end of the full differentiation of flower buds to the harvest of garlic, it is the period of vegetative growth and reproductive growth. The growth is the largest and the amount of fertilizer is the most. Garlic requires the most nitrogen, followed by potassium and phosphorus.
The production of 1000 kg of garlic requires absorption of 4.5 to 5 kg of nitrogen, 1.1 to 1.3 kg of phosphorus, and 4.1 to 4.7 kg of potassium. Fertilization of garlic is mainly based on nitrogen, and appropriate amount of phosphorus and potassium fertilizer is applied. Sulfur is a constituent element of garlic quality. Appropriate application of sulphur fertilizer can improve the yield and quality of garlic and garlic, and nutrient elements such as copper, boron and zinc have obvious effects on garlic yield. .
2, the base fertilizer of garlic
Garlic base fertilizer should be applied to the base fertilizer before sowing. The cultivation and cultivation network recommends that 3500~5000kg of high-quality decomposed organic fertilizer and 30~50kg of 45% compound fertilizer should be applied per mu.
3, garlic top dressing
Garlic seedling fertilizer is generally applied in about 1 month after emergence. The cultivation and cultivation network recommends 4 kg of compound fertilizer per acre 10 kg; the wintering fertilizer of garlic is applied to 45% of compound fertilizer 10~20 kg per mu and appropriate amount of decomposed organic fertilizer. Protect the seedlings safely for the winter; when the garlic is in the green stage, the topdressing is applied to the 4~5 leaves of the garlic seedlings and the application of 45% compound fertilizer 15~20 kg per acre to promote the differentiation of the scale buds and flower buds. In the elongation period of garlic garlic, the differentiation from the bud flower bud to the convulsion is the vegetative growth and reproductive growth and enters the period, that is, enters the vigorous growth period, and applies 45 to 20 kg of compound fertilizer per acre. In the garlic growing season, the topdressing is carried out in the garlic and simmering, and each application is applied with 45% of compound fertilizer 20-30 kg per mu, and 0.2% potassium dihydrogen phosphate is sprayed once every 7 days.
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