How to manage winter scallions?

How to manage winter scallions? There is no understanding of the netizens to help introduce that it is now winter, and it is also the strengthening period of the management of winter scallions, so the farming network has sorted out the key points of the management of winter scallions, which are listed in detail below for netizens' reference. Point 1, timely watering: green onion planting immediately after watering, the first water should not be too large, in order to prevent bubble collapse onion ditch, every 5-6 days, and then pour slow seedling water. From then on, water should be watered every 7 to 8 days to keep the soil moist. Remove the stagnant water in the ditch in time after the heavy rain to prevent the water from rotting roots and dead seedlings. "Frosts Descent" was watered for 10 to 15 days. Pour another frozen water on "the Winter Solstice". Point 2, timely topdressing: general topdressing of winter scallions for 3 times. The first topdressing is carried out when the seedlings slow down and begin to grow vigorously. 8 kg of urea and 8 kg of ternary compound fertilizer were applied to 1/15 hectares. The second topdressing was carried out from "Cold Dew" to "Frosts Descent". The third topdressing was carried out between "the Beginning of Winter" and "Lesser Snow", applying 20 kg of urea and 20 kg of potash fertilizer on 1/15 hectares. In addition to topdressing, foliar spraying should be carried out. Spraying ferrous sulfate, ammonium molybdate, copper sulfate and manganese sulfate with a concentration of 1000 times can be increased by more than 10%. Third, the soil cultivation of winter scallions: every time you fertilize the spring onions, water is watered and the soil is cultivated once. It is appropriate not to bury the heart leaves, not to exceed the "pentagonal strands", and to drive out the low but not the high. Soil cultivation should be carried out when the soil moisture content is moderate and there is no mud, and pay attention to avoid dew in the morning. When cultivating the soil, we should also be careful not to hurt the onion leaves and cause diseases. Pay attention to Zhangqiu Welsh Onion planting Video