In the first half of the year, there were moderate to heavy rains and heavy rains in the middle and lower reaches of the Yangtze River. For this decent rainfall process, it is a rain. All localities should pay attention to the water storage and water retention of the Tanggu ditches. In some areas, they should also guard against possible heavy precipitation and waterlogging disasters, as well as prevent strong convective weather such as thunderstorms and winds, and adopt the following agricultural technical measures:
First, the early rice early-maturing varieties sown in mid-March may enter the booting stage during low temperature. There is no deep water insulation, and there is no foliar application of potassium dihydrogen phosphate to enhance its resistance. In the future, the production or remediation strategy is: It is necessary to increase the application of granular fertilizer as early as possible to prevent premature aging of functional leaves and increase 1000-grain weight. In the filling period of filling, if it is high temperature, it should be filled with water to cool down, and prevent "high temperature ripening". For the sowing in mid-April, the effective tillering period has passed, and the seedlings should be controlled immediately, and the main stems and the ears should be worked hard.
2. The mid-season that was planted in late April and transplanted has been affected by the “May Coldâ€. The reintegration of the rice is suppressed. If the tillering is still small in the future, it should be based on the principle of “time to unequal seedlingsâ€. Controlling the seedlings, focusing on the main stem and increasing the ear. For the delay in planting in May due to drought, try not to fill the moon. According to the survey, due to the effects of drought in the previous section, the seedlings are sparse, and the tillers are increased. As long as the transplanting is carried out, more effective ears can be obtained. At the same time, in the normal normal year, in the mid-late late maturing varieties planted in May, the heading and poplar period is in mid-August, and there is less than 3 days or more ≥35 °C high temperature hazard, in case of the above-mentioned high temperature during the booting stage, The water in the pond can be appropriately cooled, or the potassium dihydrogen phosphate can be sprayed on the foliar surface to enhance the stress resistance, so as to improve the seed setting rate. At the same time, avoid premature water cut during the filling period to increase the 1000-grain weight.
Third, due to the late transplanting of cotton, many of them have become "high-footed seedlings" in the nutrition sputum, and not only the red-green ratio is dysfunctional, but "one stalk red", it is necessary to spray the auxin or paclobutrazol as soon as possible. Especially in the plum rain period, avoid applying nitrogen fertilizer, prevent "warm water and fertilizer" from meeting, and appear "high and empty". Due to the large amount of precipitation, it is necessary to clean up the "three ditch" to prevent possible heavy precipitation and waterlogging disasters.
Fourth, this continuous precipitation is very unfavorable for wheat that has not yet been harvested. It is necessary to pay attention to the prevention of rot.
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