Scallions in the Yangtze River Valley are generally sown from March to April and harvested from June to July. They can also be planted from September to October and harvested from April to May in the second year. During this period, the market for young larvae, which has not grown up, will be supplied to the market. Should choose the flat terrain, well-drained, fertile soil cultivation of the fields, regardless of sandy soil, clay loam can, soil pH requirements are not strict, slightly acidic to slightly alkaline. However, it is not suitable for continuous cropping for many years, nor should it be connected with other onion and garlic vegetables. Generally, after planting for 1 to 2 years, it needs to be replanted. Ploughing immediately after choosing a good plot, usually 2500 to 3500 kg of decomposed manure or manure per mu, 30 to 35 kg of phosphorus and potassium fertilizer, or 40 kg of compound fertilizer. After cultivating, the hoe is used to make rakes, which are about 2 meters wide. The rakes are 40 centimeters wide and 15 to 25 centimeters deep. Onion and chives are usually propagated in ramets. The planting of ramets in the year of the plant has occurred with more tillers, and the average temperature is about 20°C. The Yangtze River valley is generally in the period from April to May and from September to October, depending on the local temperature. Before the planting, the mother plants in the planted field will be dug up and the roots will be cut and the plants will be split by hand. Planting rows of green onions are larger and chives are smaller. Generally divided into onion spacing of 23 cm, hole spacing 20 cm, seedlings per hole planting seedlings 2 to 3, planting depth of 4 to 5 cm; fine chive spacing 10 cm, hole spacing 8 cm, seedlings per hole planting seedlings 2 to 3 , planting deep 3 to 4 cm. After pouring water, the chives may also contain a small amount of seeds, which can be used for seed propagation. After the planting of alive, shallow stalks were used to remove weeds. Top dressing was 10% decomposed and diluted manure or 0.5% urea fertilizer, and 1000-1500 kg of acre was applied. Due to shallow root distribution and weak absorption, the onion roots are not tolerant to concentrated fertilizers, are not tolerant to droughts and floods, and are less competitive with weeds. They must be grounded by small water to keep the soil moist, and attention should be paid to the removal of rainy weather. Water. After the planting is completed, the childbirth starts and the childbirth can be used for secondary delivery. In general, 2~3 months after planting, the plexus has been more lush and can be harvested. If you do not harvest temporarily, you can also stay in the field and continue to grow. Or give birth to each strain and leave a part of it to continue fertility management, and then wait until it grows.

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