In response to the adverse effects of the current adverse weather on crops, Shi Zhanzhong, the director of the Municipal Agricultural Technology Extension Station, led the relevant experts to go deep into the field to open the “prescription†for the “consultation†of crops. The station expert Xue Wenquan suggested that farmers actively take measures to strengthen the field management of crops in the middle and late stages, and minimize the impact of adverse weather on crop yields.
On July 31, in the Tangyuan County Modern Agriculture Park demonstration field, Xue Wenquan told reporters that since the middle and late July, there have been three precipitation processes in the city, especially the heavy rains in the western part of the city from July 28th to 29th. In two days, the precipitation exceeded 100 mm, and the water level of some rivers soared. The farmland along the river was flooded, and the low-lying farmland accumulated water. Most of the farmland produced internal sputum. Some towns and towns experienced violent storms, and some dense corns dumped. Along with rainfall, there is a minimum temperature of 14 degrees Celsius and a low temperature. At this time, the rice, corn ear differentiation, heading flowering, and soybean flowering and sitting pods are in a critical period, which seriously affects flowering pollination, and causes obstacle-type chilling damage, which constitutes a certain yield for field crops. influences. It is rainy and idyllic, and it continues to be cold. The bacterial brown granules in rice are heavier, and rice blast occurs in the large fat rice fields.
To this end, Xue Wenquan suggested that it is necessary to eliminate excessive water accumulation in paddy fields, implement shallow water intermittent irrigation, increase soil oxygen content, promote rice root growth, and prolong rice leaf life. Especially low-lying paddy fields, we must try to drain, avoid prolonged flooding, achieve strong roots and leaves, reduce the humidity of paddy fields, and reduce the chance of rice disease. Corn is a crop that requires a lot of water and is not resistant to cockroaches. At present, it is the period of corn flowering and pollination. When the field water holding capacity exceeds 80%, it will cause damage after more than 5 days. Therefore, it is necessary to eliminate the water in the corn field as soon as possible to prevent it from happening. Harmful. Xue Wenquan said that in early August, the air temperature was high and the temperature was high. It is a season in which crop diseases are prone to epidemic. Comprehensive disease prevention measures should be taken to maximize the control of major rice diseases. The first is to remove the weeds in the canals and ponds, maintain the ventilation and light transmission in the field, reduce the humidity of the field air, reduce the source of the disease, and effectively control the occurrence of various diseases of rice. The second is to combine foliar fertilizer, spray fungicidal and bacterial agents, and implement conditions for prevention and control, promote aerialization and spraying, prevent disease first, prevent disease, and do not wait for disease after treatment. The third is to combine the application of granular fertilizer, increase the application of silicon and potassium fertilizer, and improve the disease resistance of rice. In normal rice fields, it is necessary to apply granular fertilizer, supplement nitrogen, phosphorus, potassium and silicon, promote early maturity of rice, prevent premature aging of rice, reduce grain weight, and strive for high yield. The corn field should be artificially sprayed with potassium dihydrogen phosphate foliar fertilizer to promote early maturity, prevent premature aging, improve firmness, prevent baldness, fight for grain weight, and strive for yield.
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