Planting techniques of Autumn Maize

Autumn corn should be no-tillage and direct seeding after the middle of July. After the previous corn harvest, seize the time to clean the countryside, early sowing is the key, generally does not require deep ploughing. 1. The seeds should be dried for 2 to 3 days, and the seeds should be soaked for 4 to 6 hours before sowing, so that the seedlings can emerge evenly and neatly. Arrange the plant spacing according to the density of 3500 to 4000 seedlings of 667 square meters, drill a hole 5 cm deep with a seedling transporter, then sow 1 to 2 selected corn seeds in each hole, cover 3 cm of soil after sowing, and then pour the head water to ensure that the whole seedling is sown. The seedlings were fixed during the period of 5-6 leaves. 2. Within 1-2 days after corn sowing, 667 square meters are sprayed with glyphosate plus 50% Acetochlor 150 ml with water, which can effectively control weeds. 3. Due to the high temperature in the early stage of autumn corn and the shortening of corn growth period, base fertilizer should be re-applied. After sowing, 15 cm deep holes were drilled between corn plants with a seedling transporter on the ridge surface, about 40 kg of multi-component compound fertilizer was applied to 667 square meters, and 15 kg urea was applied to 667 square meters after fixing seedlings at 5-6 leaf stage. In the period of 10 to 12 leaves, 667 square meters were applied with 15 kg urea. Timely drainage and irrigation. 4. Under the condition that the next crop is not affected, the harvest should be as late as possible in order to fully prolong the filling time, increase the grain weight, increase the yield and improve the quality of corn.