Leeks need to be planted from the selection of seed treatment, sowing seedlings, seedling management, planting and planting, pest control and other aspects.

1, selecting seed treatment

Leeks have many varieties, you can choose good quality, strong resistance varieties, select no impurities, no pests and diseases, full of particles, the size of the full of seeds. Soak the seeds in warm water at 40 ℃, stir when soaking, wait for the water to stand, fish out the dried seeds, remove the impurities, fish out the seeds to dry, wrap the seeds in wet gauze and put them in a warm place to germinate the treatment.

2, sowing seedlings

To organize the sowing seedbed, the soil for deep turning, tilling depth of about 30-50 cm or so. In the deep turning, each mu of 3500-4500 pounds of organic fertilizer, and 100-150 pounds of composite fertilizer, after applying fertilizer, the soil will be raked and leveled, as a border. The germinated seeds and sand are mixed according to the ratio of 1:3, evenly sprinkled into the furrow of the border, the surface is covered with fine soil, and then covered with a layer of straw.

3, seedling management

When sixty-five percent of the leek seedlings, the straw will be uncovered, sowing seedlings, watering every 2-3 days to keep the soil moist. When the seedlings grow to 15-16 cm high, you can apply the appropriate amount of compound fertilizer.

4, planting planting

When the leek seedlings grow 7-8 leaves, plant height of about 18-19 cm, you can start planting. The leek seedlings will be planted in accordance with the plant spacing of 10 cm, row spacing of 20 cm intervals, digging holes to plant seedlings, each hole planted 20-25 plants. After planting, it is necessary to do a good job of water and fertilizer management, and it can be harvested after one month.

5, pest control

General leeks will occur pests, including leek maggots, leaf miner flies, thrips and so on. Leek maggots are mainly harmful to the rhizome, causing bulb rot, while the latter two are mainly nibbling leaves. Once found can be used to prevent and control the root, the use of trichlorfon to control leek maggots, but also can be used in the way of spraying, such as 2.5% deltamethrin 1000-1500 times liquid spray can be used to prevent and control the leaf miner fly and thrips.