What should summer corn seedlings pay attention to?

What should summer corn seedlings pay attention to? Please give an introduction to summer corn seedlings to pay attention to the following points: First, check seedlings to prevent lack of seedlings broken ridge to ensure that the whole seedlings, should be timely check seedlings to fill seedlings, with early-maturing varieties after germination or in the seedlings 4-5 leaf age before, in the afternoon or cloudy with soil transplanting seedlings. Corn seedlings should be thinned in time when 3-4 leaves are left, seedlings should be fixed when 5-6 leaves are left, weak seedlings, seedlings, diseased seedlings and round culm seedlings should be pulled out, and healthy seedlings with consistent size should be selected. Second, timely intertill to prevent grass shortage seedling stage should be intertill weeding 2-3 times, before seedling, intertill should be shallow, deep 5 cm is appropriate. Before jointing, intertill and weed elimination for 1-2 times, promote secondary roots to be deeply rooted, 10 cm deep, deep between rows, shallow beside seedlings. Promote chemical weeding. III. Check diseases, control insects and prevent pests and diseases. Remove weeds at the edge of fields, ridges and fields in time, and eliminate aphids and planthoppers. Corn thrips harm corn heart leaves in the middle and late June, so that the heart leaves twisted, the injured leaves were silver-white spots, serious heart leaves turn yellow and die, to prevent and control in time. Fourth, pursue eccentric fertilizer to prevent strong bullying weak seedlings should take early measures, single plant management, promote weak to strong, so that it quickly catch up with the general plant height, prevent late due to serious canopy, resulting in empty culms or small ears, bald tip and lack of seeds. The commonly used method is to apply eccentric fertilizer, 5-10 kg of quick-acting nitrogen fertilizer per 667 square meters, and apply it near the plant. After dressing, loosen the soil in time. 5. Combination of irrigation and drainage to prevent waterlogging The remarkable characteristics of corn seedling stage are drought tolerance and fear of waterlogging. As long as it is not seriously drought, it generally does not need watering, but it should be drained in time in case of waterlogging. In corn seedling stage rainstorm, rapid rain more, after the rain should be timely drainage, prevent hot rain damage stems and roots, cause dead seedlings, especially depression and poor land preparation quality plot, more timely drainage, and timely cultivation, soil moisture ventilation, prevent waterlogging. Click for more corn growing technology Click for more food crop growing technology