I. After the long growing period and the field management process, most of the drainage and irrigation functions in the garlic field were seriously degraded. With the arrival of the rainy season, especially in the middle and late stages of garlic growth, the rain increased, and some areas were not supported. The block is prone to waterlogging disasters and affects the growth of garlic. In the near future, we must do a good job in clearing the grass in the garlic field, and ensure that the “three ditch†is matched, so that the dry irrigation can be done, the raft can be drained, and the rain can be stopped to prevent rain and waterlogging.
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Second, strengthen water management With the entry of garlic into the critical period of water demand, coupled with rising temperatures and increased windy weather, the demand for water in garlic is increasing, all localities should pay attention to the management of garlic water, and generally irrigating a large amount of garlic. For some sorghum plots, it is necessary to use the well or other means to properly replenish water to ensure the need for water expansion.
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Third, the supplement of fertilizer The key period of garlic absorption of fertilizer is the elongation of garlic to the expansion period of garlic. Due to the different fertilization levels, the differences in plant growth between the plots are obvious. Some of the plots have been de-fertilized due to yellowing of the leaves and thin growth. Fertilization measures should be taken. First, combined with irrigation and fertilization, 15 to 20 kg of urea per mu ; second, spraying 0.5% urea solution, 0.3% potassium dihydrogen phosphate solution or other organic foliar fertilizer; third, spraying garlic in the early stage of garlic expansion, each Use 200 ml of water and 40 to 50 kg of water for spraying.
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Fourth, the prevention and control of pests and diseases Garlic is prone to soft rot, leaf blight, rust and other leaf diseases in the middle and late growth. Among them, soft rot is a bacterial disease, yellow-white streaks can penetrate the whole leaf, and the diseased part is yellowish brown soft rot when the humidity is high. Prevention and treatment of this disease should be sprayed with copper hydroxide, acacia, and acid copper in the early stage of the disease. Leaf blight mostly occurs at the tip of the leaf. It is initially white with small dots. When enlarged, it is irregular or elliptical grayish white to grayish brown lesions with black mold on it. Prevent and treat the disease, pay attention to timely drainage after rain, and spray bactericide such as chlorothalonil, metalaxyl, manganese and zinc in the early stage of the disease. The rust disease department often has a raised brown spot, and the skin is ruptured and an orange-yellow powder is scattered. Prevention and treatment of the disease should pay attention to prevent flooding of large water, and timely spray triadimefon and other drugs in the early stage of the disease.
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Fifth, timely harvesting is the timely harvest of garlic. Garlic, which is mainly based on harvested garlic, is 15 to 18 cm long in garlic , curved like a scale hook, and the cockroach is obviously inflated, and the color is harvested when the color turns from green to white. The second is to harvest garlic at the right time. For sale in dried garlic, the leaves at the base of the plant are dry, the pseudo-stalks are soft, and the toughness is harvested when the force is pressed to one side, and is generally harvested about 20 days after the picking . Listed with fresh garlic, it is generally harvested 5 to 7 days earlier than the harvest of dried garlic to maintain crisp quality.
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Source: China Agricultural Promotion Network
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