Variety selection
Garlic with small garlic head and thin petals has weak growth potential and poor fertilizer absorption ability at seedling stage after sowing, which seriously affects the scale division and is easy to form single garlic. Be careful not to choose local, improved or hybrid garlic, which is not only eaten raw in kind of garlic, but also has a low single birth rate.
Postpone sowing date
According to the field planting practice, the sowing date of garlic is late, and the incidence of single garlic is high, which can reach 50-60%. Therefore, if you want to have more kind of garlic in spring, you can postpone the sowing date to 20-30 days after the vernal equinox; When planting garlic in autumn, the planting time of garlic can be delayed by 50-80 days on the basis of normal sowing date.
Sowing method
(1) Selection of sowing place: If you want to plant more kind of garlic, it is recommended to choose a place with poor soil quality. In order to improve the survival rate of garlic, continuous cropping is not suitable. At the same time, the garlic field should be deeply ploughed and loosened, and farmyard manure 1500-2000 kg as base fertilizer, phosphorus fertilizer 30-50 kg and potassium fertilizer 15-20 kg should be applied per mu.
(2) Sowing time: After the Spring Festival, the best time for local garlic planting is from the end of February to the vernal equinox. When the soil melts to 5- 10 cm, it can be planted.
(3) Sowing method: about 60,000-80,000 plants are planted per mu, and the sowing depth is 2-6cm. At the same time, we can cover the plastic film according to the planting time. If we cover the plastic film too early, it can keep moisture and raise the temperature. If we plant it late, we don't need to cover it with plastic film. We can interplant other vegetables and crops, so that they can grasp the nutrition and contribute to the formation of garlic. In order to improve the yield and quality of single garlic, fertilizer and water management should be strengthened, high nitrogen and high potassium compound fertilizer should be applied per mu, and phosphorus and potassium source pools should be sprayed on garlic leaves during the expansion period.
tighten up the management
At each growth stage, especially the scale expansion stage, corresponding management measures should be taken to strengthen the supply of fertilizer and water. It is necessary to do a good job in post-autumn management and build firewood before winter. Open the lid in time to water the green water in spring. In mid-March, it is necessary to strengthen cultivation, protect soil moisture, raise soil temperature and spray dimethoate 1000 times to control ground maggots.
Generally speaking, the main causes of garlic formation are improper garlic selection, poor soil and improper sowing date. Now there are many places to grow garlic according to the reasons for the formation of garlic monomer. At the same time, it is necessary to master the necessary planting techniques to improve the survival rate and quality of garlic. Usually, it can be sold in the market at a price several times higher than that of ordinary garlic, and the planting benefits are very extensive.