The cultivation of early-ripening potato sorghum scallion is a new type of planting pattern developed in the Hexi area in recent years. It has been harvested for 1 year and 2 years in 1 year, and has increased 30-40% over the single species. First, the mouth arrangement. When the temperature in spring is stable at 5-7°C, the potato can be sown and harvested in mid-to-late June. The previous crop should not be crops such as tomato, tomato, onion and garlic. Scallions were sown in the middle and late March, transplanted and planted at the end of June and early July, and harvested at the end of October. Second, the choice of species. Potatoes were selected as early maturing potatoes, early tuber enlargement, short dormancy period, such as early white, Kexin 4, Zhongshu 2, Zhongshu 3, Zhongshu 4 and other early maturing varieties. Onion selection of high quality, good yield Zhangqiu green onions, onions and other chicken. Third, cultivation and management. Potatoes were replanted with basal fertilizer before sowing. The row spacing was 20 cm. After sowing, the soil was covered with ridges. The ridge width was 50 cm. The ridge spacing was 35 cm. Before emergence, generally do not water, early watering after emergence, hair and watering period combined with cultivator, generally do not topdressing. The potato period and the expansion period are the key stages in determining potato yield, and the soil should be kept loose and moist. Potatoes should not be flooded and the buds should be removed in time. The harvest should be based on market demand, before the high temperature is approaching, generally can be harvested in mid-to-late June, 25-35 days earlier than ordinary open land. Before the onion is sown, the basal fertilizer is re-applied. The seedlings are 90-100 cm wide, 1 m long and 25 cm wide. After the sowing, the sand is 1 cm thick and immediately filled with water once. 15-20 days after emergence, topping water, topdressing urea. After the potato is harvested, the planting trench is excavated. The depth of the trench is 20-25 cm and the distance between the trenches is 40 cm. The green onion seedlings are planted at the bottom of the trench and are planted in 3 rows, with 2 plants per hole and a 5-7 cm hole distance. Transplantation logistics topdressing, and together with soil, watering together. Before and after the beginning of winter harvest green onions, drying and stacking, tied after the light snow.
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