What are the nutritional characteristics and fertilizer requirements of garlic? What are the correct fertilization methods?

Garlic has a long history of cultivation in China. Zhang Qian went to the Western Regions in the Han Dynasty. The Silk Road? Garlic was introduced to Shaanxi, and then planted in China. The subject can be divided into two parts, one is the nutritional characteristics of garlic, and the other is the fertilizer requirement and fertilization of garlic. Let me say it alone.

1. Nutritional characteristics of garlic

1, the nutritional function of garlic

Garlic is rich in nutrition. Fresh garlic is rich in protein, fat, vitamins, calcium, phosphorus, iron, zinc, dietary fiber, xanthic acid, allicin, citral and selenium. In addition, garlic contains eight essential amino acids such as arginine and glutamic acid.

2. The health care function of garlic.

Garlic is a natural fungicide with no side effects. Natural antibiotics? Known as. The nutrients in garlic have multiple effects of cancer prevention, sterilization, lowering blood lipid and cholesterol, and preventing arteriosclerosis. Garlic is a natural broad-spectrum antibiotic, which can inhibit a variety of bacteria and has a good effect on the prevention and treatment of cardiovascular and cerebrovascular diseases. In addition, garlic plays an important role in lowering blood sugar and improving human immunity.

Second, the fertilizer demand characteristics of garlic and how to fertilize it.

1, fertilizer requirement characteristics of garlic

Garlic belongs to shallow root system and its absorption capacity is relatively poor, but garlic is a fertilizer-loving crop. According to this characteristic, garlic should be fertilized several times in a small amount, and watered immediately after fertilization to promote the absorption of fertilizer. The demand for three nutrients is nitrogen fertilizer, followed by potassium fertilizer and phosphate fertilizer. The research shows that the medium fertility land does not produce 100㎏ garlic, but needs 1.42㎏, with 0.44㎏ phosphate fertilizer and 0.99㎏ potash fertilizer.

In addition, garlic is sensitive to trace elements such as sulfur, copper, boron and zinc. Adding trace elements can greatly improve the yield and quality of garlic.

2. The correct fertilization method of garlic

Garlic needs less fertilizer at seedling stage, during which nutrients are mainly supplied by female petals; In the leaf growth period and bulb expansion period, more fertilizer is needed, so we use two pieces of base fertilizer and topdressing to talk about the correct fertilization of garlic.

Base fertilizer: the application principle of garlic base fertilizer is total nutrient fertilization, with organic fertilizer as the main and chemical fertilizer as the supplement. According to the actual situation of the soil, a small amount of medium and trace elements can be added. It is suggested to apply 5000-8000 ㎏ or 500㎏ fully decomposed manure and manure or commercial organic fertilizer per mu, and apply 45% (15- 15) compound fertilizer of about 50㎏.

Superficial application

(1) Fertilization at seedling stage

Fertilization in garlic seedling stage is different from that in autumn. Garlic seedlings sown in spring do not need fertilization, while garlic seedlings sown in autumn are spent in winter. Therefore, in order to cultivate strong seedlings and ensure that the seedlings can survive the wintering period smoothly. When garlic grows to 2-3 leaves, apply seedling fertilizer and urea 10 kg per mu.

(2) fertilizing at the differentiation stage of scale buds and flower buds

During this period, garlic's demand for water and fertilizer is gradually increasing, and the supply of nutrients is not timely, which will affect the differentiation of scale buds and flower buds.

Sow garlic in autumn: after turning green, apply green manure, and apply 20㎏ or 45% (15- 15) compound fertilizer 15㎏ per mu. Early-maturing varieties can be properly watered and fertilized in advance. Spring sowing garlic: The differentiation period of scale buds and flower buds of spring sowing garlic is short, so irrigation and fertilization should be advanced accordingly. (3) fertilizing the flower stems in the extended period

The vigorous growth period of flower stems is also the vigorous growth period of garlic nutrition. At this time, the nutrient absorption increases rapidly, so the main work of flowering stem extension period is topdressing and irrigation. When young garlic shoots are exposed, 45% (15-15) compound fertilizer should be applied per mu.

(4) Fertilizing in Bulb Expansion Period

After the garlic bolt is harvested, the leaves basically stop growing, the bulbs enter the vigorous growth period, and the nutrients are transferred to the bulbs, so that the garlic bolt begins to hypertrophy. According to the previous fertilization situation, topdressing can be applied under the condition of insufficient fertility, and urea 10~ 15㎏, potassium sulfate 5~ 10㎏ or ammonium sulfate 15~20㎏ can be applied per mu. At the same time,

The above is the answer to the question raised by the subject. If you have any problems in the process of planting garlic, you can leave a message in the comment area, and we will discuss the problems in garlic planting together.