The garlic seedlings cultivation techniques in multi-storey greenhouses are mostly applied in the winter and spring seasons. They can not only regulate and make up for the supply of off-season vegetables, but also can greatly improve the land utilization rate, which makes garlic production gain higher benefits. Building rack method The bed is made of wood, straw, plastic film, iron wire and red brick. Low-middle height before and after the greenhouse, two-story framed bed at the front and rear, and three layers at the middle. A single brick is used to form a wall with a height of 10 centimeters. The distance between the walls is 1.2-1.6 meters. Then a wooden bed is used to form a rack bed with a width of 1 to 3 meters and an unlimited length. The distance between wood poles is 20-30 centimeters. On the basis of the first floor, 80 to 100 centimeters away from the first level, 80 to 90 centimeters wide beds are seized with wooden rods. Each layer is covered with a layer of plastic film. The film is covered with 5-6 cm thick sandy loam soil and the soil is photographed. During the erection of the bed, it must be tightly fastened to prevent the collapse of the bed. Cultivation and management methods Choose garlic seeds: choose large flaps, high yield, short dormancy period, emergence and growth of varieties. Preparation before sowing: Soak the garlic with warm water of 30°C～50°C for about 30 hours to make the garlic water swell. Then remove the drain heap stuffy for about 12 hours and then dig up the garlic stalks. If the sown area is large and the amount of seed soaked is large, sowing can be done one week in advance without stemming. Put the garlic pressure soil: Place about 15 kilograms of garlic cloves per square meter. The tighter the garlic cloves and the garlic cloves, the bigger the gap is filled with the smaller cloves. After the garlic clods, use a thin sand to cover it with 3 cm thick. Water management: Use the water with temperature not lower than 15°C to pour garlic sprouts. After the cultivation, pour water into the early stage of growth. The medium height of the seedlings is about 15 centimeters. The water is poured in the middle 3 to 4 days before the harvest. The number of waterings depends on the dry and wet conditions of the bed. Temperature control: To maintain the cleanliness of the film surface of the greenhouse, improve the light transmittance to obtain more light time. The temperature of the bed is required to be in front of Qimiao, during the day at 24°C to 26°C, and at night at 20°C to 22°C; after Qimiao, during the day at 22°C to 24°C and at night at 18°C ​​to 22°C; the seedling height is about 15cm. 16°C to 22°C during the day and 16°C to 18°C ​​during the night; 18°C ​​during the day and 12°C during the night when harvesting. Timely harvesting: When the garlic grows to a height of about 35 centimeters, when the leaves of the seedlings are slightly tilted, they are harvested for a suitable period and harvested in time. After the first crop of garlic was harvested, the same management method as above was adopted and new garlic sprouts could be grown after 20 days. When the new garlic grows to about 30 cm, it can be harvested and sold again. Such cycle management and harvesting can continuously harvest 3 to 4 tons. This method enables garlic to be produced in the off-season, and it can also harvest continuously, fully and effectively use the land, and increase the economic benefits for garlic farmers.
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