Leks are yellowed leeks produced when leeks are softened and cultivated in dark environments through cultivation, shading, and other means.

The growth habit of leeks. Like leeks, leeks need a lot of fertilizer, suitable for growth in dark and damp places, while requiring a certain amount of light for photosynthesis, artificial cultivation in dark environments can be used to increase light. Fertilizer should be applied immediately after the harvest of leeks, and timely fertilizer to ensure its growth.

Methods of growing leeks.

1, the whole land for the border. Choose a 2.4-meter wide leek field, leaving 0.5 meters of open space on each side of the border for easy access to the soil. Plant 4 rows in each border, with row spacing between 33-40 centimeters and hole spacing of 17-25 centimeters.

2, softening pre management. Selected 2~3 years old leeks best, spring after the leeks after the collection of adequate fertilizer, per mu can be applied into the manure 3000 kg, compound fertilizer 5-10 kg. Watering should be combined with fertilizer when the soil is dry. Before the leeks soften, it is necessary to control gray mold, powdery mildew, leek maggots, thrips and other pests and diseases.

3, soil cultivation. Cultivate the soil need to apply 40 kg of compound fertilizer per acre, and then water, and combined with fertilizer watering with 1000 times liquid trichlorfon, such as splashing the roots against leek maggots. Remove weeds and old yellow leaves from the field in time. Cultivate soil in 2 times, the first cultivation of soil in the seedling height of 50 cm, 10 days after the song on the upper green leek and then the second cultivation of soil. Cultivate soil to be in 20 centimeters thick.

4, shade. After the harvest of green leeks, when the leek seedlings grow to 10 centimeters high in the border to build a trellis, covered with black film, and then covered with a layer of straw, cover the thickness of the grass in order not to leak the light is appropriate.

During the softening period, you should ensure that the trellis is impervious to light and rain, and check it frequently to prevent the film from being damaged and the straw and film from being blown off, and to avoid rainwater from entering the trellis, which can cause leek rot and result in a decline in yield and quality.

5, harvesting. Leeks generally need 20 days of cultivation, and can be harvested when they grow to more than 35 centimeters and begin to wilt at the top. Harvesting first uncovered the grass curtain, the leek blade support to one side, the soil raked to reveal the leek root, 1.5 centimeters from the ground to harvest flat. If it rains after cutting, the roots should also be covered with mulch.