How to manage planting corn in summer at seedling stage?

How to manage planting corn in summer at seedling stage? Please introduce the management methods of summer planting corn at seedling stage as follows: first, if you want to check seedlings and make up seedlings without missing seedlings and broken ridges, you should check seedlings and fill seedlings in time to ensure the whole seedling. The seedlings were replanted with precocious varieties after sprouting or transplanted with soil in the afternoon or cloudy days before the age of 4-5 leaves of the seedlings. Maize seedlings with 3-4 leaves and time seedlings, 5-6 leaves fixed seedlings, pull out weak seedlings, small seedlings, diseased seedlings, round stalk seedlings, and choose healthy seedlings of the same size. Second, if there is no grass famine in time, weeding should be done 2-3 times in the seedling stage. Before setting the seedlings, the middle ploughing should be shallow and 5 cm deep. Ploughing and killing weeds 1-2 times before jointing, promoting secondary rooting with a depth of 10 cm, deep between rows and shallow beside seedlings. Promote chemical weeding. Third, it is necessary to investigate and control pests without the occurrence of diseases and insect pests and remove weeds on the edge of the field, the ridge of the border and the land in time, and eliminate aphids and planthoppers. Corn thrips endanger the heart leaves of corn in the middle and late June, distorting the heart leaves, showing silver-white stripes, and serious heart leaves turning yellow and withering, so it is necessary to prevent and cure them in time. Fourth, to apply eccentric fertilizer to prevent strong seedlings from bullying weak seedlings, measures should be taken as soon as possible for weak seedlings, individual plant management should be taken to promote the weak to become strong, so as to quickly catch up with the general plant height, so as to prevent the late serious closure, resulting in small empty culms or ears, bald tips and lack of grains. The commonly used method is to apply eccentric fertilizer, apply 5-10 kg of available nitrogen fertilizer every 667 square meters, apply holes near the plant, and loosen the soil in time after topdressing. Fifth, it is necessary to combine irrigation and drainage without drought and waterlogging at the seedling stage, which is characterized by drought tolerance and fear of waterlogging. As long as there is no serious drought, generally there is no need for watering, but in case of waterlogging, it should be drained in time. There are more rainstorms and torrential rains in maize seedling stage, so it should be drained in time after rain to prevent hot rain from harming stems, leaves and roots, causing dead seedlings, especially in depressions and plots with poor soil preparation quality, and timely ploughing, dispersing moisture and aeration to prevent waterlogging. Click to get more corn planting techniques click to get more food crop planting techniques