South of the Yangtze River, pay attention to avoid rain and grab rapeseed

Today, during the day to the 13th, there are small to moderate rains or thunderstorms in most parts of the Yangtze River. Among them, there are heavy rains in southern Guizhou, southern Hunan, most of southern China, and Fujian, and there are heavy rains in parts of southern Guizhou and northwestern Guangxi. Some of the above areas are accompanied by strong convective weather such as short-term thunderstorms or hail. According to the weather forecast results of the next ten days, combined with the current situation of rapeseed maturity in the southern part of the country, the recommendations for the later management and ripening of rapeseed are as follows:

1. Strengthen the management of rapeseed in the later period to prevent adverse effects such as heavy rain and strong winds. According to the latest weather forecast, the process precipitation will be obvious in the next 10 days. There may be strong convective weather such as short-term heavy precipitation and thunderstorms and strong winds. Therefore, it is necessary to strengthen the defense. In the low-lying areas, rapeseed fields should be drained in time if there is heavy rain. If there is lodging, the maturity should be harvested early after the rain stops to prevent germination and mildew, which will affect the harvest yield.

2, seize the favorable weather, grab the harvest, and strive for the return of the grain. Judging from the current weather trends, there will be more process precipitation in the next 7 to 10 days, but the rainy weather may not be large, which is basically conducive to the ripening of rapeseed. Due to the increased risk of rainy weather in the middle and late stages, it is necessary to grasp the sunny weather gap in the middle and early mid-term, and harvest according to the "80% yellow, 10% harvest". Judging from the current weather trends, there are two sunny weather conditions on the 13th to 14th and 16th to 18th of the Xiangbei rapeseed production area, which is favorable for rapeseed harvesting; there are more rainy weather in the southern part of Hunan, and should pay close attention to short-term weather forecast and catch the fine weather gap. reward.

3. Strengthen the management of sun exposure to prevent germination and mildew. If there is continuous rainy weather in the later stage, the mature rapeseed should be harvested indoors and ventilated before the rainy weather, and the grain should be threshed in time. The threshing should also be spread out to avoid germination and mildew, which will affect the harvest yield.

4. Prepare for the transplanting of mid-season rice, cotton and other crops in the later season. Due to the low precipitation in the early stage, the middle rice paddy should use the obvious precipitation process, step up the storage of water and prepare for the transplanting.

National precipitation forecast map in mid-May

The specific weather forecast is as follows:

On the 11th to 12th, there were moderate to heavy rains in Jianghuai, Jiangnan and South China, including heavy rain in the southern part of the south of the Yangtze River and the northern part of South China.

From 14 to 15 days, there were small to moderate rains in the south-central, south-south and south-western parts of the south of the Yangtze River, with heavy rains in the western and southern parts of southern China.

On the 16th and 18th, there were light rains and partial moderate rains in northern Xinjiang, northern North China and northeast China. There are small to moderate rains in the south of the Yangtze River, South China, and the southwestern part of the country, and heavy rains in some areas.

After 18 days, there was a large-scale rainfall weather process in the central and eastern regions.