The maize growing season coincides with the summer and autumn. The weather is changeable, and there is more rainfall, which is easily affected by the climate disaster. Yang Yinfu, an associate researcher at the Agriculture College of Northwest Agriculture and Forestry University, said that after the disaster, measures should be taken to remedy the situation and reduce the losses to a minimum.
Hail disaster
From jointing of corn to tasselling, when the male and female ears and some leaves have not yet been extracted, they suffer locust plague. As long as the unextracted leaves are not damaged and residual roots are removed, field management measures such as cultivating and fertilizing can be taken and a good harvest can still be obtained. If corn suffers a locust plague after heading, the ability of the plants to recover from growth deteriorates and has a greater impact on yield. If the ear sections are intact, management should be strengthened in time to promote plant growth and reduce yield loss.
Windstorm
In the summer and autumn, turbulent weather often occurs, causing lodging or stemming of corn. Corn that is lodging or stem-folding before maturity should be raised in time to avoid mutual pressure and affect photosynthesis. For inverted corn, if it is only rooted, the plants can be straightened. If it is a stem fold, several plants should be bundled together to support the plants.
Floods
Corn is also afraid of water, and the water demand is large. However, when the soil moisture exceeds 80% of the field water capacity, the growth and development of the plant is affected, especially at the seedling stage. At the late stage of corn growth, under high temperature and rain conditions, roots often suffocate due to lack of oxygen, which has a great impact on the yield. For corn that suffers from locust plague, early elimination of water in the field, reduction of soil and air humidity, and promotion of plant growth should be encouraged. When the field can be applied normally, cultivator and soil should be promptly removed to eliminate compaction, prevent lodging, and improve soil permeability. The roots of the plants are returned to normal physiological activities as soon as possible, and the available nitrogen fertilizers are promptly increased to accelerate the growth of the plants and reduce the loss of the disaster.
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