Five key points of garlic growing technology

　　In garlic planting technology, there are many tasks that need to be paid attention to when carrying out garlic planting, and the following is a detailed description of the five points of garlic planting technology.
　　The five points of garlic planting technology are described as follows.
　　(i) Variety selection
　　Among the garlic planting techniques, the main varieties that are currently more suitable for planting in Kirin District are Sichuan red seven stars (generation and generation two), soft-leaf garlic, first-class early, second-class early, and local purple-skinned garlic.
　　(II) Sowing time
　　Dam area is generally early garlic seedlings, red seven stars (one generation, two generations) planting time is in the white dew season (early September). The second early sowing period is around the autumn equinox season (mid to late September). The late garlic sowing period should be from the autumn equinox to the cold dew (i.e. September 23-October 8). High altitude areas can then be planted one season earlier.
　　(III) Seed treatment
　　Before sowing, select and grade the garlic cloves, remove the pest-infested cloves, separate them according to large and small, and grade the seeds.
　　(D) Make the ground for moisture and plant reasonably densely
　　When preparing the soil for moisture, it is required that the top is fine and the bottom is coarse, and the width of the moisture surface is 3-4 meters. In garlic planting technology, the seeds should not be sown too deeply and the soil should be kept somewhat moist to promote early seedling emergence. For other varieties with small cloves, only 60-75 kilograms of seeds should be used, with a density of 30,000-40,000 plants per mu, row spacing of 15-18 cm and plant spacing of 8-10 cm. The early-maturing varieties are dense and the late-maturing varieties are thin.
　　(E) Field management
　　1. Weeding and loosening: If the soil is caked and weeded after the garlic seedlings emerge, it should be plowed in combination with weeding, and the first plowing should be done when the seedlings are 10-13 cm high with 2-3 leaves, and the second shallow plowing should be done when the seedlings are 26-33 cm high with 5-6 leaves. In garlic planting technology, garlic land weeding is more laborious, in order to improve the efficacy chemical weeding should be promoted, chemical weeding is: 3 days after garlic planting application, spraying with Goel and Chlordecone to prevent weeds, after the seedling should be plowed 1-2 times to prevent soil slumping and weed growth. If there are more weeds in the seedling stage, different herbicides can be selected for different kinds of weeds to prevent and remove once.
　　2、Irrigation: If the soil is moist after sowing, the seedlings can emerge without irrigation, but when the soil is dry, the seedlings should be irrigated with water. In the seedling stage should generally be less irrigation, more mid-tillage, proper control of water to prevent the growth and "receding mother" too early. In the moss and bulb fat period to increase irrigation, avoid drought, keep the soil moist. Irrigation should be mainly furrow irrigation, water does not flood over the moisture surface, soil tide that withdraw, avoid large water diffusion, garlic harvesting 5 to 7 days before the irrigation should stop, otherwise easy to produce loose garlic.
　　3、Fertilizer: Garlic has a long growth period and needs a lot of fertilizer, but the root system is shallow and has a weak ability to absorb fertilizer, so sufficient fertilizer should be applied and fertilizer should be chased in stages to continuously meet the needs of garlic growth and development. Garlic fertilizer should be mainly organic fertilizer, accounting for 70% of the total fertilizer, and the ratio of nitrogen, phosphorus and potassium should be 1:0.8:1, with 12.5 kg of pure nitrogen per mu, pay attention to supplementing calcium fertilizer and increasing boron fertilizer. The general base fertilizer mu with 30 kg compound fertilizer (15:15:15) plus pig manure 50-80 quintals, back to the mother period (about 5 leaves after seedling) chase a seedling fertilizer, mu with urea 30 kg or 35 kg ammonium carbon, round foot period (after 8 leaves), you can apply 20 kg urea or 30 kg ammonium carbon per mu.
　　4. Pest and disease prevention: During the growth of garlic, especially after December, cold wave appears more often, low cold and low light, and high humidity easily lead to the occurrence of garlic pests and diseases. In garlic planting technology, the main diseases are rust, leaf blight and epidemic disease. The prevention and treatment agents: powder rusting, chlorothalonil, trichlorfon, and quicklime can be applied at the early stage of disease onset or during disease onset; insect pests include onion thrips, and trichlorfon can be used to exterminate. After spring, as the temperature rises and sunshine grows, garlic enters a rapid growth stage, which requires more fertilizer and water.