Corn planting techniques: which methods can make summer corn high yield?

What methods can make summer corn high-yielding? Please give guidance for planting summer corn if you want to obtain high yield, you can refer to the following techniques: first, select corn seeds: spread the corn seeds evenly and sun for two days before sowing, and then remove small grains, blighted grains, broken grains and mildew grains, which is the basis for cultivating strong seedlings. Second, planting corn with a single grain: planting at a single point can avoid competing for more fertilizer of seedlings and injuring roots between seedlings, which is beneficial to the cultivation of seedlings. If direct seeding, it is most appropriate to use 2 kg per mu of seeds, and seedlings should be fixed in the morning after emergence. 3. Keep 4000 corn seedlings per mu: 1, row spacing 50 m x plant spacing 30 cm; 2, row spacing 60 cm x plant spacing 25 cm; 3, row spacing 60 cm x plant spacing 20 cm. Fourth, skillfully apply corn seed fertilizer: 2 kg urea and 2 kg diammonium per mu. When planting, 1 gram per hole; if direct seeding, one person will catch the seed and the other will catch the fat. Fifth, timely application of strong maize seedling fertilizer: after setting the seedling (5-leaf stage) combined with stubble ploughing, pine squatting seedlings, topdressing strong seedling fertilizer, 50 kg ammonium bicarbonate per mu. Sixth, increase the application of strong corn fertilizer: during the big trumpet period, 80 kg of ammonium bicarbonate, 10 kg of diammonium and 10 kg of potash fertilizer were applied per mu. Seventh, timely prevention and control of diseases and insect pests: in the later stage of the big trumpet mouth, pay attention to observe the insect situation and control the heart worm in time. 1 kg of carbofuran granules per mu and 3 kg of fine soil, 1 g per plant, sprinkled into the heart leaves. When heading, control aphids and spray 1000 times of omethoate. Eighth, interline male removal: when 20% of the male ear is out, start to remove the male ear, go to the other row, and do not go to the side and the ground. Click to get more corn planting techniques click to get more food crop planting techniques