Soil preparation: the cultivation of scallion seedlings adopts the method of sowing. Before sowing, soil preparation and soil preparation are essential, and the width of soil preparation is preferably 1.2m, which is more convenient for vegetable farmers to manage, saves time and labor, and irrigates adequately after leveling.

Sowing: generally 60 square meters with two seeds. After the seeds are sown, cover the floating soil with a thickness of about 1cm, and then cover it with plastic film until the seedlings grow.

Emergence management: the reporter reminded everyone that it is best to uncover the plastic film above the seedlings during the growth process. The first advantage of this is that the top soil can be dried; Second, sunlight can shine on the seedlings, so that the seedlings can be exercised, which can prevent the occurrence of sudden collapse.

Watering: when the seedlings just come out, the stems are bent, so be sure to wait until the bent parts are straight before watering, otherwise it will affect the later management.

Weeding: The growth of seedlings is always accompanied by the growth of weeds. Here, the reporter should remind the majority of vegetable farmers that herbicides can only be used when the seedlings grow to about 20cm, otherwise it will affect the growth of green onions.

2. Post-colonial management

Planting standard: when the seedlings grow to 30-40cm, ditch and prepare to plant green onions.

Soil preparation and fertilization: At present, ditching is mechanical ditching, and fertilization is required after ditching. According to Master Zhang, 400-500 kg of chicken manure and 40 kg of compound fertilizer should be applied to 1 mu of land, and after application, the soil should be turned over and ploughed deeply.

Planting: After these tasks are completed, you can punch holes with a puncher. Generally, you can punch 14 holes at a time to fix the seedlings in the holes, and the first step is completed.

Then, bamboo pieces are fixed in turn along the border, and then covered with film to make a simple small bow shed, waiting for the growth of green onion seedlings. In the process of seedling growth, the temperature will gradually increase, which requires us to poke holes in the film and ventilate.

When the seedlings grow tall, they will also grow out of the holes poked in the film; When the scallion grows to 80cm, cut the film into a straight line from the middle and pile it on both sides respectively. Be careful not to uncover the film, because the film can keep warm and moist at this time.

Why cut an 80cm film? There are two reasons: first, the next step is to cultivate soil, and green onions are most suitable for cultivating soil at this height. Soil cultivation is too early, green onions are not strong enough, and cultivation is too late, which will affect the commercialization of green onions, so this height should be accurately grasped;