Is it better to plant leeks in a small bow shed by sowing them in rows or holes?

Both can be used, depending on management and planting methods.

Leek is usually planted in early March of the lunar calendar and transplanted before the Mid-Autumn Festival. When transplanting, you should be thinner, with five or six trees in a pool. The leek ground should have sufficient base fertilizer, loose soil, thin ridges, a border about five feet wide, soil moisture one foot wide and seven or eight inches deep, and the field should be cool.

Before sowing, soak willow leaves in water, add less kerosene, water them once, pinch out the moles and pick them up; If there are tigers on the ground, water omethoate. The favorite fertilizers for leeks are chicken and duck manure, human and animal manure, household dust or cake manure. When using cake fertilizer, rapeseed cake should be cooked first, diluted with water and then watered, and the best fertilization time is in the evening. ?

Leek is usually cut once every fifteen days, and it can be cut about 20 times a year. Leek should be cut in the morning or at night, and cut the mud with a sharp knife. When cutting, cut it in sequence. After cutting, rake the soil loosely with a rake, scrape a little of the thin side and cover it on the leek pile, and apply fertilizer once a day or two. Leek is drought-tolerant. If the weather is too dry, water it in the morning. ?

Try to strive for early germination and early listing of leeks. The previous winter, we should close the knife early, let the leaves of the tail knife die naturally, cover the leek with dung residue, miscellaneous ash and broken grass, and after the next spring, cross off the broken grass and large pieces, and then chase the dung, so that the first leek can germinate quickly. Leek has strong branching ability, and the newly planted leek can grow to 30 or 40 trees per pond in two or three years. If the density is found to be too high, transplant it in time. ?

Leek can adapt to a wide temperature range, and can be cultivated in the open field in the four seasons south of the Yangtze River. The leeks north of the Yangtze River are dormant in winter. In winter, leeks are stored in greenhouses by using nutrients stored in roots, and covered in sunny beds, or green leeks are produced by using solar greenhouses, plastic arches, sunny beds and other protective facilities by taking advantage of their cold resistance and weak light resistance. Winter is also the suitable season for softening cultivation of leeks in Guangdong and Guangxi. Planting leeks can be used for direct seeding and seedling raising. Most provinces in Northeast China use direct seeding, while other regions mainly use seedling raising. Choose neutral sandy loam for seedbed, carefully prepare soil and sow in spring and autumn. ?

High ridge planting is widely used in south China, flat ridge planting in north China and ridge planting in northeast China. Plant height 18-20cm is the physiological seedling age suitable for planting. Planting period should avoid high temperature rainy season. Flat border cultivation, row spacing of 20-25cm, hole spacing of12-15cm, 8- 10 plants per hole; Ridge row spacing is 25-35cm, hole spacing is18-20cm, and each hole has 20-30 plants. Planting depth should not be buried with leaf sheaths. ?

Management in the second year after planting: water after planting, and properly topdressing and watering when new leaves grow to promote their roots and leaves. Pay attention to drainage and waterlogging prevention in summer, and remove weeds in the field. After entering autumn and vigorous growth period, topdressing and watering should be done in stages to promote plant growth. Top dressing of leek should be based on nitrogen fertilizer, with appropriate amount of phosphorus and potassium fertilizer. Water is an important factor affecting the yield and quality of Chinese chives. Lack of water leads to an increase in fiber content and loss of tenderness. However, water accumulation in the field is easy to cause root rot. High temperature and high humidity are easy to induce diseases. The growth rate slows down in late autumn, so we should control watering to prevent green love. Soil moisture loss in winter is the main cause of leek death in winter, so water it before winter in high and cold areas to prevent cold and winter. ?

Management for more than two years after planting: correctly handle the relationship between harvesting and root raising, the current year's output and the next year's output, so as to achieve high yield year after year. To the north of the Yangtze River, after turning green in early spring, the soil in the rhizomes will be removed and restored to its original state in a few days, so as to raise the ground temperature, eliminate species flies, promote root growth and eliminate weak tillers. Combined with root removal, exotic soil can be covered by 2-3cm every spring, which is beneficial to the elongation and softening of leaf sheaths. Harvest 2-3 times in spring, and after each harvest, water topdressing combined with available nitrogen fertilizer to restore growth. Summer is hot, which is not suitable for leek growth. It is necessary to strengthen fertilizer and water management, prevent and control the harm of seed flies, and pick flower buds in time in seedless plots. Stop harvesting local leeks 50-60 days before withering, so that nutrients can be transferred to the roots, which can enhance the wintering and cold resistance and lay a material foundation for the green growth in the next spring. When planting leeks in protected areas in winter in the north, it is not suitable to harvest them in autumn. In the plant growth period, the leeks should be surrounded by bamboo poles to prevent lodging and accumulate root nutrients. Generally, it can be harvested 4-5 times a year with an interval of 25-30 days, and it is not suitable for harvesting in summer. ?

Seed collection: leeks begin bolting, flowering and fruiting in the second year, and 3-4-year-old leeks are generally selected for seed collection. Seed collection field and growth field should be rotated regularly, and it is difficult to recover after many years of seed collection. The original seed farm should choose seed plants with the characteristics of this variety, many leaves, strong tillering ability and vigorous growth. Good varieties should be selected one by one, and bad plants should be eliminated. The isolation distance of different types and varieties is 1000-2000m for cross-pollination of Chinese chives. The flower buds were harvested in Huangshi early in the morning, dried and threshed. ?