High-yield cultivation techniques of Carex garlic

Bolting garlic is for the purpose of producing garlic bolts and garlic vegetables, which has high value in vegetable cultivation. Its high yield cultivation techniques are introduced as follows:

First, 6g soil preparation: bolting garlic is suitable to be planted in loose and fertile sandy soil or cancellous land. When preparing the soil, we should plough deep and fine rakes to achieve depth, fineness, transparency, compactness and flatness. Garlic needs a large amount of fertilizer, and heavy fertilization is the basis of high yield. Generally, every 667 square meters (1 mu), fully mature organic fertilizer 4000-5000 kg, diammonium phosphate 50 kg, potassium sulfate 30 kg, iron fertilizer 3 kg, zinc fertilizer 2 kg, boron fertilizer 2 kg. Combine the ploughing of the land and apply it.

Second, variety selection: Cangshan garlic with both bolting, vigorous growth, strong adaptability, cold tolerance, high yield and good commercial quality was selected as the cultivated variety, and the large-color, white, aseptic and non-invasive garlic was selected as garlic seed, and the seed petal was graded into large, medium and small grades. Sow seeds according to grades.

Third, fine sowing: it is appropriate to sow seeds in early October in Shandong Province. Planting density row spacing 18cm 20cm, plant spacing 10cm, planting 34000cm 38000 plants per 667 square meters. Generally open trench sowing, ditch depth of 6 cm, seed valve sown into the soil after holding flat ridge ditch, cover soil 2-3 cm, steady compaction. Spray 48% trifluralin EC 100g and 150g every 667 square meters, cover the film immediately, seal the film with soil, and then pour water once.

Fourth, strengthen management: garlic was unearthed 7-9 days after sowing, most of the garlic buds could break the film, and a few garlic seedlings had to break the membrane in time to lead the garlic seedlings out of the film. Pour overwintering water once before freezing "Lesser Snow" to "heavy snow". When the garlic seedlings turn green in the next spring, water them once. In April, garlic seedlings began to grow vigorously, should be irrigated once permeable, and topdressing, every 667 square meters topdressing urea 25 kg. The period from the beginning of May to the beginning of bolting is the peak growth period of garlic bolt. at this time, we should pay attention to watering and keep the ground moist, watering once at the beginning of May, and irrigating 25 kg of nitrogen, phosphorus and potassium compound fertilizer per 667 square meters. Watering in time after bolting, keep the ground dry and wet, and stop watering 7 days before garlic harvest.

Fifth, timely harvest: in the middle and last ten days of May, when the bud of garlic bolting becomes larger, the color becomes white, and the top of the bolting is bent into a groove, the bolting should be picked in time for the best harvest period. About 20 days after bolting, when the upper leaves of garlic turn gray-green, the bottom leaves turn yellow and fall off, the garlic stem is soft, and the garlic is fully expanded to harvest in time, so as to avoid black skin and loose cloves of garlic, affecting the product quality.

Sixth, disease control: garlic disease is mainly leaf blight, in the seriously affected areas should be protected by spraying in advance. ① has the best control time, and it is easy to occur from April to May. Prevention should be given priority to, disease control should be controlled, drainage and spraying should be done in time after each rainfall. ② chooses suitable agents to use alternately. The suitable agents are mainly 75% chlorothalonil wettable powder 1000 times liquid, 40% carbendazim glue suspension solution, 64% poison alum 500 times solution.