As you know, the weather is unpredictable, unpredictable, and the weather changes, especially catastrophic weather changes, are really difficult for people to prevent and deal with.
According to media reports, from the evening of May 14 to 15, some parts of Henan Province were seriously affected by the superposition of relatively strong cold air and the occurrence of strong convective cyclones, and there was a wide range of windy and disastrous weather changes in Zhengzhou.
The wind reached the level of a force 12 gale, which was very destructive, with a large number of large trees breaking waist-high, and many billboards, signs, houses, vehicles and other facilities were damaged, and the damage was very serious.
After the strong wind, some wheat fields in rural areas of Henan Province have appeared in a large area of lodging in the form of flakes, and the wheat is now in the filling and maturity stage, and the wheat is very seriously affected.
These damaged wheat, there are many farmers are very anxious, after the disaster, farmers do not need to be nervous and emotional, let alone worry too much, the important thing is that the wheat that has fallen down, how to remedy? Avoiding a reduction in wheat production is the most critical issue.
At present, a number of agricultural experts in Henan Province have issued four specific remedial measures for the lodging of the affected wheat to the farmers in the disaster area in a timely manner, and the following is shared with you, hoping to play a greater and better role in disaster prevention and mitigation for farmers in the disaster area, and welcome a comprehensive harvest of summer grain this year.
(1), lodging wheat, do not tie or support. At present, the wheat in Henan is in the early or middle stage of grain filling, and suddenly encountered severe windy weather, and a serious lodging phenomenon occurred.
At present, due to the lodging of the wheat ear head, relatively light, especially the lodging is not very serious wheat field wheat, the plant's own growth, self-adjustment ability is relatively strong, after the wind, the wheat plant can not be bound, do not need to be lifted, under normal circumstances, can be fully in different degrees of state, restore upright, the yield is no impact.
Specifically for the wheat plant lodging phenomenon in the late stage of grain filling, because the ear head of the wheat plant is heavier at present, it is not easy to restore the upright state for a while, if you blindly take specific auxiliary measures such as manual tieing and supporting, not only is it very labor-intensive, waste of time, but also will cause the wheat stalk that has become brittle, cause secondary damage or breakage, will cause greater losses, and the gains outweigh the losses.
(2) Lodging wheat to prevent and control diseases. After the strong wind, the wheat plant has a serious lodging phenomenon, the plant stalks and leaves, are between each other, stacked together, the whole plant is in a very closed state, ventilation is not normal, the light transmission ability is very poor, very conducive to the occurrence of a variety of wheat diseases, resulting in the aggravation of wheat disease, or the spread of development.
Lodging wheat after the gale, farmers need to choose to use the right pesticides and spraying methods according to the characteristics of the wheat growth period and the basic situation of wheat diseases and pests, according to the current actual situation, and need to do a good job in the prevention and control of wheat diseases and pests in a timely manner, so as to reduce the secondary damage caused by the lodging of wheat after the gale, and bring about a decline in wheat yield, and strive to meet the overall harvest of summer grain.
(3) Lodging wheat to prevent premature aging. Lodging wheat after strong wind, easy to cause serious damage or break of the stem and root system of the plant, the ability of wheat stalks to transport nutrients and water, the ability of wheat roots to absorb nutrients and water, and the photosynthesis of leaves, will seriously decline, which will destroy the water, nutrient absorption and photosynthesis of wheat plants, affect the normal filling of wheat in the later stage, and reduce the yield.
At this time, it is necessary to combine the disease prevention and control of wheat plants, adopt mixed spraying, use potassium dihydrogen phosphate, brassinolide, a small amount of urea, etc. as foliar fertilizer, enhance the photosynthesis of wheat plants, promote the rapid filling of grains on the wheat ear head, and prolong the time of wheat filling, reduce the harm caused by premature senescence of plants, and avoid wheat yield reduction.
(4), Lodging wheat, scientific harvest. Lodging wheat after strong winds, the vast majority of plants are in an upright or semi-upright and inclined state, at the time of harvest, the difficulty of mechanical harvesting will increase, at the end of wheat grain wax maturity or the beginning of ripening, it is necessary to start arranging a large harvester suitable for operation, agricultural mechanics can appropriately adjust the relative position between the header of the harvester and the wheel of the harvester, or the harvester will harvest these lodging wheat in the reverse lodging direction, ensure the quality of wheat harvest, realize the return of summer grain grains to the warehouse, and avoid reducing harvest and yield.
When wheat is harvested, it is necessary to pay close attention to the weather changes at that time, try to avoid precipitation harvesting, and avoid disastrous losses such as mildew and rot, germination and green of wheat, so as to ensure that the harvest is not reduced by catastrophe and the yield of summer grain is not reduced.
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