The best time to plant scallion heads is in early to mid September every year. The planting methods are as follows:

When planting scallion heads, you need to plow the soil first, and then sprinkle rotted farmyard manure, organic fertilizer and grass ash on the surface, and then turn over 20 centimeters of the land, so as to make the soil mix well with the fertilizer, to provide scallion heads with the nutrients they need for their growth, and you need to spray the soil with methomyl, to reduce the chances of scallion heads' dyeing disease.

When planting scallions, you need to bury the small bulbs into the soil, and then water them once to keep the soil moist, and then cover the soil surface with a layer of mulch, to promote rapid germination of scallions, and in the scallion seedling, you need to pull out the weak seedlings that have poor growth, and you need to spray carbendazim, to prevent diseases and insect pests. The soil needs to be loosened 3-4 times during the plant's seedling period to favor its root development.

Transplanting and planting of green onion:

Take out the green onion seedlings from the previous year's false planting in early April, peel off the dry skin, cut off the middle and upper part of the old leaves, and leave the fibrous roots at 1-2cm, remove the hard knots at the base of the green onion seedlings, and grade and reserve them. The prepared onion seedlings every 2 plants together into the ditch, hole spacing 20cm, planting density of 7000 ~ 8000 holes or so, can also be prepared for the onion seedlings according to each hole 1 planted into the ditch, plant spacing of about 10cm.

The same level of onion seedlings as far as possible planted in the same plot, is conducive to the management of the later stage. Density should be adjusted appropriately according to the situation, large seedlings sparse seedlings dense, thin ground thin ground fat dense.