Scallions are weak in drought resistance and should be planted in loam and heavy soil lands with flat terrain, sufficient water supply, good irrigation and drainage conditions, and fertile soil. It is not suitable for planting on sandy land; it should not be used for many years; it should not be replanted with other onions and garlics, and crop rotation should be carried out with soybeans, corn and other vegetable crops in 2 to 3 years.
Second, the application of base fertilizer
No matter whether sowing seedlings or transplanted plots are to be finely grounded and basal fertilizer applied. Apply per acre rotten, crushed organic fertilizer 3000 kilograms or puffed chicken manure 1000 kilograms or more. The 1.5-meter-wide and 8-10-cm-long rakes should be made into a sorghum 15 to 20 centimeters high above the ground in summer and low-lying land.
Third, nursery
1, sowing time: chives can be cultivated all year round, but the spring and summer season cultivation is better.
2. Variety selection: There are many varieties of chives, mainly including seasonal shallots, Shuanggang Four Seasons Onion, Jiangsu Xingon 21, Lucong 1 and Fujian Scallions.
3, sowing method: Summer hot season, shade can be used to cover the cooling network, winter can be used to cover a small arch shed insulation. Drilling or sowing method is used. Drilling distance is 10 cm, covering soil is 1.5-2 cm, and 2 to 4 kg per mu. To prevent the damage of underground pests, use phoxim with sieving and sifting fine soil on the bed before sowing. You can also use bait and stir-fry wheat bran to make poison baits. Spread it on the seedbed after sowing in the evening and pour the soles of the feet. water.
Fourth, colonization
Seasonal Shallots can be planted after 40 to 50 days after sowing, (8~10) strains/acupoints, spacing 12 to 20 cm, and hole spacing 8 to 10 cm, should be shallow and not deep, with 4 to 6 cm appropriate, after planting Plant water in a timely manner.
V. Field Management
The root system of chives on the four seasons is underdeveloped, with a shallow distribution. The ability of the root to absorb fertilizer and water is also weak. It is necessary to strengthen the management of fertilizer and water. Control watering of seedlings in the first to third leaf stage and post-transplantation, control of watering in the first till three-leaf stage of cultivating unripe soils and postponed seedlings after transplanting, and one or two times of cultivating loose soil to promote root growth. ~10 days watering five times. If the application of basal fertilizer is too small, or the harvest period is too long, it is necessary to top-dress one or two times, apply 300 kg of rotten puffed chicken manure per acre, spread it between rows and timely cultivating, such as opening a hole to better effect. Roots should be soiled 1 or 2 times in the later period. In summer, the temperature is high and the light is strong. Shelters should be used to cover the shade net. In winter, small arches can be used to cover the insulation.
Summer and early autumn can often maintain half a ditch, so that the clay often moist. Especially in the summer, changing the water through sewerage can reduce the soil temperature and prevent high temperature stagnation and injury. In the rainy season, we must do a clean ditch drainage work.
6. Harvesting
Four seasons of fragrant onions are generally harvested 60 to 80 days after sowing and can be harvested 30 days after transplanting.
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