The recalcitrant corn suffered from locust plague at the germination and emergence stage, which could easily lead to soil compaction, ground temperature drop, poor ventilation, affecting seed germination and emergence, and the soil should be loosened timely after the disaster to facilitate warming and ventilation; before the jointing of corn to tasselling, especially the large bell mouth Before the period, when the male and female ears and some leaves have not yet been taken out, they will suffer locust plague. As long as the unextracted leaves are not damaged and the roots remain, as long as timely cultivating, fertilizing, and strengthening field management, a good harvest is generally obtained; In case of disaster relief, the ability of plants to restore growth deteriorates and has a greater impact on yield.
During the growing period of the stormy maize, frequent stormy weather caused corn lodging or stem breakage. 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 plant can be straightened; if it is a stem fold, several plants should be bundled together to make the plants support each other.
Relief maize is a crop that requires large amounts of water but is not tolerant. When the soil moisture exceeds 80% of the field water capacity, the growth and development of plants is affected, especially at the seedling stage, and the performance is more pronounced; In the later period, under the condition of high temperature and rain, the rhizosphere often suffocates due to lack of oxygen, resulting in the rapid decline of viability, plant premature and withered, have 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 land can be released, cultivators and soils should be cultivated in time to remove compaction, prevent lodging, improve soil permeability, and make plants The roots resume normal physiological activities as soon as possible; timely application of available nitrogen fertilizers accelerates plant growth and mitigates damage from floods.
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