What was the weather like in the past week?
What are the impacts on agricultural production?
What are the weather trends for the future?
What are some recommendations for agricultural production?
Let's take a look at this issue of "Agricultural Gas Direct Train"
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In the past week, the temperature in most parts of the mainland was close to the same period of the year or higher, among which the central and western parts of Northeast China, most of North China, Northwest China, Henan, central and western Hubei, and northern Hunan were 1 to 4 °C higher, and most of Guangxi, southwestern Guizhou, northern Yunnan, western Sichuan, and southern Tibet were 1 to 3 °C lower.
The precipitation in the central and eastern parts of Jianghuai, the central part of Jiangnan, the central and southern parts of South China, the eastern part of Southwest China, the western part of Heilongjiang, the eastern part of Jilin, and the eastern part of Liaoning Province was 25 to 100 mm, and 100 to 250 mm in some parts of southern Guangxi. The precipitation in most of the above areas is close to the same period of the year or 5 to 4 times higher; Most of the rest of the country has no precipitation or less than 25 mm.
The sunshine hours in Northeast China, North China, Huanghuai, Jianghuai, Jianghan, Northwest China, eastern Jiangnan, and eastern South China are close to the same period of the year or more than 2 to 5 percent, and the western part of Jiangnan, western South China, most of southwest China, and eastern Tibet are less than 3 to 8 percent.
The impact of future weather on agricultural production
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It is expected that in the next 10 days, the light and temperature conditions in Northeast China will be good, most of the soil moisture will be suitable, and the meteorological conditions will be generally conducive to the sowing and emergence of spring corn and soybean and the transplanting of one-season rice.
From the 14th to the 17th to the 20th, there will be dry and hot wind weather in Huanghuai and southern North China, which is not conducive to wheat grain filling and fruiting, and the high temperature and lack of moisture are conducive to the proliferation of wheat aphids and a large number of feeding.
It is expected that the precipitation in the south will be small and weak before the 17th, which is conducive to the harvesting of summer grain crops and the growth of paddy fields and dryland crops.
From the 18th to the 20th, there will be a moderate to heavy rain process in the Sichuan Basin, Guizhou, Yunnan, Jiangnan, South China and other places, with heavy rain in some areas, heavy rain in the southwest of Jiangnan and northern South China, and strong weather such as local short-term thunderstorms and strong winds, heavy precipitation is easy to lead to waterlogging disasters in some low-lying areas of farmland, increasing the difficulty of rapeseed harvesting and the risk of germination and mildew, and is not conducive to the growth of early rice tillering, open-field vegetables and economic forest fruits
Farming advice
The northeast region should seize the suitable moisture conditions to complete the sowing of dryland crops as soon as possible, and do a good job of seedling inspection and replanting in the sown areas; In the first-season rice area, soak the field in time, ventilate and refine the seedlings, prepare for rice transplanting, strengthen the management of water and fertilizer in the transplanted rice field, and promote the growth of regreening. In the northern winter wheat area, the field management of wheat during the grain filling period should be strengthened, and the work of "one spray and three preventions" should be carried out in a timely manner. In the middle and lower reaches of the Yangtze River and southwest China, the mature winter wheat and rape should be harvested in time to prevent precipitation from causing germination and mildew. In areas with more precipitation in the south, ditches should be dredged in advance to prevent waterlogging disasters; Strengthen the management of water and fertilizer in early rice, and control the growth of tillers according to seedling conditions; In addition, areas with heavy rainfall are prone to crop diseases and pests, so monitoring and control should be strengthened.
Source: Central Meteorological Observatory Editor: Yang Aoqing Review: Cui Guohui