Suggestions on disaster Prevention in the Field of Maize growing in the Middle and later stage

During the transition between summer and autumn, strong wind and torrential rain often occur, which often cause lodging or stem break disasters of crops such as corn. Here, I would like to make the following suggestions on disaster prevention:

First, strengthen field management before the disaster, timely ploughing, soil cultivation and fertilization during the big trumpet period of corn, promote root growth, ensure that aerial root plates grasp the soil, pay attention to listen to the weather forecast, and take reinforcement and lodging prevention measures in advance.

Second, after the storm, the corn that loses or breaks the stalk before maturity should be picked up in time, so as not to reverse pressure on each other and affect photosynthesis; for the inverted corn, if it is just dumping, the plant can be righted; if it is a stem fracture, the plants should be fixed together with ropes to make the plants support each other.

Third, maize is a crop with large water demand and not tolerant to waterlogging. In the later stage of maize growth, under the condition of high temperature and rain, the rhizosphere is often asphyxiated and necrotic due to hypoxia, resulting in rapid decline of vitality and plant withering before maturity, which has a great impact on yield. For corn suffering from waterlogging, it is necessary to eliminate stagnant water in the field as soon as possible, reduce soil and air humidity, and promote plant growth.

Fourth, strengthen field management after the corn disaster, carry out ploughing and soil cultivation in time, so as to break consolidation, improve soil permeability, and restore normal physiological activities of plant roots as soon as possible; at the same time, increase the application of available nitrogen fertilizer, 15-20 kg per mu of ammonium bicarbonate, foliar spraying 0.2% potassium dihydrogen phosphate solution 60-80 kg, accelerate plant growth and reduce waterlogging losses.

Fifth, the hot and humid season, which is also the season with high incidence of corn diseases and insect pests, should pay attention to the alternation of corn rust, big and small spot, ear rot and aphids, and it is appropriate to choose sunny and rainless weather in the morning or evening for prevention and control.