During the summer and autumn transitions, there are often violent turbulence and convective weather, often causing crops such as corn to fall or stems. Here are some suggestions for disaster prevention:
First, strengthen the field management before the disaster, corn in the trumpet period, timely tillage, soil fertility, promote root growth, ensure that the gas roots are caught in the soil, and pay attention to the weather forecast, take reinforcement measures in advance.
Second, the corn that has fallen or stems before maturity after the storm should be raised in time to avoid mutual pressure and affect photosynthesis; for the inverted corn, if it is only dumped, the plant can be righted up; if it is stem, it should be The plants are fixed with ropes on the bamboo sticks to support the plants.
Third, corn is a crop that requires a large amount of water and is not resistant to cockroaches. In the late stage of corn growth, under high temperature and rainy conditions, the rhizosphere is often necrotic due to lack of oxygen, resulting in rapid decline in viability, unripe plants, and yield. great influence. For corn that has suffered from flooding, it is necessary to eliminate water in the field as early as possible, reduce soil and air humidity, and promote plant growth.
Fourth, strengthen the field management after the corn disaster, timely carry out cultivating and soil cultivation to break the knot, improve soil permeability, and restore the normal physiological activities of the roots of the plants as soon as possible; at the same time increase the application of quick-acting nitrogen fertilizer, 15-20 kg of ammonium bicarbonate. Spray 60-80 kg of 0.2% potassium dihydrogen phosphate solution on the surface to accelerate plant growth and reduce the loss of locust.
The fifth is the hot and humid season, and it is also the season of high incidence of corn pests and diseases. It is necessary to pay attention to the occurrence of corn rust, large-scale spot disease, ear rot and aphids. It is advisable to choose morning or evening sunny and rain-free weather for prevention and control.
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