Coping with high temperature weather rice field management

At present, most of the early rice in Jiangnan and South China are in the stage of heading and flowering to the stage of filling and milking; the late rice in Jiangnan is in the stage of sowing and breeding. When the maximum temperature is ≥ 35 °C or the average daily temperature is ≥ 30 °C for more than 3 days, it may lead to poor pollination of early rice, shortening of grain filling period, early maturity, affecting yield and quality; late rice seedlings grow too fast, which is unfavorable to form strong seedlings. .

　　 It is expected that in the next 10 days, there will be many high-temperature and low-rain weather in the south-central part of the south of the Yangtze River and the north-central part of South China, and there will be 4 to 7 days of high temperature with a maximum temperature of 35 to 39 °C. Continued high temperature is unfavorable for early rice pollination and grain filling and late rice seedling growth, which may cause high temperature heat damage. In addition, sunny weather can easily cause fruit and vegetables to suffer from "sunburn" and affect production.

Agricultural production advice:

1. In the south of the Yangtze River and South China, pay attention to “tempering with water” and adopt measures such as shallow water irrigation or daily irrigation to improve the microclimate in the field and reduce the impact of high temperature.

2 , Jiangnan should do a good job in the management of late rice paddy field, avoid high temperature burns seedlings, and cultivate strong.

3 , fruit trees, vegetables, etc. take irrigation, shading and other measures to reduce the impact of high temperature and hot weather.

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