What should be paid attention to in summer corn seedling stage

What should summer corn seedling stage pay attention to? Please introduce the following points to be done at the seedling stage of summer corn: first, check seedlings to replenish seedlings and prevent seedling deficiency and broken ridges in order to ensure the whole seedling, seedlings should be checked and replenished in time, replanted with precocious varieties after sprouting or before the age of 4 or 5 leaves of the seedlings. Transplant seedlings with soil in the afternoon or in cloudy days. Maize seedlings with 3 leaves and 4 leaves, fixed seedlings with 5 leaves and 6 leaves, pull out weak seedlings, small seedlings, diseased seedlings and round stalk seedlings, and keep healthy seedlings of the same size. Second, timely ploughing to control grass famine at seedling stage should be ploughed and weeded for 2 or 3 times. Before setting seedlings, middle ploughing should be shallow and 5 cm deep. Before jointing, the weeds were ploughed and killed twice, and the secondary roots were deeply rooted, with a depth of 10 cm, deep between rows and shallow beside seedlings. Promote chemical weeding, use Maibao or Yi A mixture 100,120ml per mu, 50 kg of water, spray evenly. Third, disease control, pest control, timely removal of field edges, ridges, land weeds, and eliminate aphids and planthoppers. Corn thrips endanger the core leaves of corn in the middle and late June, distorting the heart leaves, showing silver-white stripes, and serious heart leaves turning yellow and withered. Prevention and treatment: 40% omethoate 25 ml, 30 kg water, or 50% phoxim EC 1000 times liquid spray. 4. Measures should be taken as soon as possible for weak seedlings to pursue eccentric fertilizer and prevent bullying and bullying, and 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 of stalks or ears, resulting in thin stalks or ears, bald tips and lack of grains. The commonly used method is to apply eccentric fertilizer, apply available nitrogen fertilizer 5kg / mu, apply holes near the plant, and loosen the soil in time after topdressing. Fifth, drainage and irrigation combined with anti-sprout waterlogging corn seedling stage is characterized by drought tolerance and fear of waterlogging, as long as there is no serious drought, generally do not need watering, but in case of waterlogging should be drained in time. There are more torrential rain and torrential rain 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 sprouting and waterlogging. Click to get more corn planting techniques click to get more food crop planting techniques