From April 1-3, the strong cold air affected most of the central and eastern regions of China, and the temperature in Huanghuai, Jianghan, Jianghuai and other places dropped by 8-10 °C, and the temperature drop in some areas reached 12-14 °C. The eastern part of Sichuan Basin and Guizhou Temperatures in Jiangnan and other places have dropped by 4-8 °C; the eastern part of the northwestern region, most of North China, most of the Yellow River and Huaihe, and most of the southern part of the country will have small to moderate rain (snow), including Jianghan, Jianghuai, northern Jiangnan, Guizhou and other places. There is heavy rain in some areas. Hard Seal Sphere Seat Assembly Hard Seal Sphere Seat Assembly,Hard Sealed Seat,Hard Sealed Fixed Sphere,Hard Sealed Regulating Sphere Antong Valve Co.,Ltd , https://www.atvalveball.com
On the 4th to 7th, there will be a medium-intensity cold air affecting China from west to east, and some areas in the north will have weak precipitation. Some areas in the southern Xinjiang Basin, Gansu Hexi, Inner Mongolia Midwest, Ningxia, and Shaanxi will appear dust. the weather. On the 6th to 7th, there will be a small to moderate rain process in the southern part of the country. There is heavy rain in the northern part of the south of the Yangtze River. In the middle and south of April, there is a period of low temperature and rainy weather in some parts of the south, and some areas have spring cold (or cold spring).
According to the latest weather and climate prediction results, combined with the current situation of spring ploughing spring sowing, the agricultural activities for planting early rice are as follows:
1. Strengthen seedling management and defend against strong cooling. It is predicted that there will be a strong cold air process in most parts of the south from April 2 to 3, and the average daily temperature will drop below 12 °C in about 3 days, and the minimum temperature can be lowered below 8 °C, which is obviously unfavorable for the growth of seedlings. In the early stage, the early rice paddy field has been planted, and the film cover is not urgently removed. Before the rainy weather comes, the film insulation is covered in time to prevent the strong cooling effect. Some of the sowed live early rice should actively adopt "water temperature adjustment". Before the cold air comes, deep water will be poured into the fields to prevent low temperature damage.
2. Step up the time to prepare for the live broadcast of the field and prepare for the live broadcast. Taking advantage of this obvious precipitation process, we will intensify the storage of water and prepare for live broadcast.
3, timely soaking seeds, timely sown in the mud. According to the latest weather forecast, the temperature rises slightly before and after the Ching Ming Festival, which is conducive to direct seeding of early rice. Soaking seeds can be arranged around April 3, and the mud will be planted in time after 5 to 6 days of warming.
4. Do a good job in the management of fertilizer and water in Putian, and cultivate the strong and strong, in order to improve the resistance of the seedlings in the late stage of low temperature and rainy weather. According to the different growth stages of the seedlings, strengthen the fertilization, apply the "weaning fertilizer" early in the 1st to 1st to 2nd leaf stage, apply the preserved fertilizer in the 2.5~3 leaf stage, and apply the "send marriage" 4~5 days before the drawing "Fat", cultivate strong and strong, improve the cold resistance and cold resistance of low temperature and rain in the late and middle of April.
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