Pay attention to fertilizer and water management in the critical period of autumn crop yield

From August 1st to 5th, the cumulative rainfall in parts of southeastern Fujian, Guangdong's central and eastern coastal areas, central and eastern Guangxi, central and southern Guizhou, southern Yunnan and western regions was 100-230 mm, and the Guangdong Pearl River Delta region and The site of Shangchuan Island is 250-319 mm. It is expected that in the coming week, there will be many showers in the northwestern part of the northwest, north China, northeast, south-central Jiangnan, south China and southwest. From 10th to 15th, high temperature weather with a maximum temperature of 35°C above 3-6 days will occur in the southern part of North China, Huanghuai, Hanshui, Jianghuai and Jiangnan.

Analysis of the impact of early weather on agriculture

It is estimated that on the 12th to the 15th, high temperature weather will occur in southern China, Huanghuai, Hanshui, Jianghuai, and northern Jiangnan. The highest daily temperature in some areas can reach 37°C-39°C.

From the 12th to the 16th, there were many rains in the eastern part of the northwestern region, north China, and northeast China. There were heavy rains in the Hetao and North China areas, accompanied by strong convective weather such as short-term thunderstorms and strong winds.

In the coming week, there will be 2-3 typhoons in the South China Sea or the Northwest Pacific.

It is estimated that in August, the temperature of most agricultural areas in the country is close to normal or slightly higher than normal, and the precipitation is close to the same period of the year. The hydrothermal conditions are generally conducive to crop growth and yield formation.

In the central and western Jianghan, western Jiangnan, and southwestern regions, precipitation is more than 2-5 percent, and some areas may suffer from heavy rain or waterlogging disasters. The temperature in the southeastern part of the south of the Yangtze River and the eastern part of South China is high, and high temperature and heat damage may occur in some areas, which is unfavorable for the growth of late rice, vegetables and fruit trees. In addition, there may be two tropical cyclones landing in August or significantly affecting China, which will have certain adverse effects on agricultural and fishery production in coastal areas.

Agricultural production advice

The agricultural area should strengthen water and fertilizer management and promote the robust growth and yield formation of autumn harvest crops. In August, autumn harvest crops entered a key stage of production formation. All localities should do well in field water and fertilizer management, timely fertilization, cultivating and weeding, increasing seed set rate and increasing grain weight.

The southern region will strengthen field management to prevent farmland waterlogging and high temperature heat damage. In the central and western parts of Jianghan, the western part of the south of the Yangtze River, and the eastern part of the southwestern part of the country, pay more attention to the timely accumulation of water in the field; and use the precipitation period to do the water storage work in Kutang.

Avoid the heavy precipitation period to transplant late rice, pay attention to water temperature adjustment, take daily irrigation and other measures to prevent the adverse effects of high temperature on rice growth. Coastal areas should pay attention to typhoon prevention work and reduce losses in agriculture and fisheries. In addition, all localities should do a good job in monitoring and controlling pests and diseases to reduce the harm. (China Agricultural Materials)

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