At present, Jiangnan live early rice has entered the end, and the early rice planting work in the south has basically ended. One season of rice in the southwestern region is in the stage of seedling growth, and one season of rice is planted in western Hunan, Jianghuai, Jianghan and northeastern China. Large-scale planting of cotton in Xinjiang, Huanghuai and Yangtze River basins. Dryland crops such as spring maize and spring peanuts in the southwestern region and south China are growing at the seedling stage. Spring wheat in the central part of Northwest China and western Inner Mongolia began to emerge, and spring wheat in the central and eastern Inner Mongolia and northwestern Heilongjiang was in the sowing period.
According to the forecast of the Central Meteorological Observatory, it is estimated that in the next week (April 18 to 24), most of the northeastern region will have 1 to 10 mm of rainfall, and the main rainfall period will appear on 19-22 days; the average daily temperature is generally 6 to 15 °C. It is 1~3°C higher than normal in the same period of the year, which is conducive to planting rice in the first season and preparing crops for dryland crops. However, precipitation in the western region is still less, and spring maize planting will be affected. In the North China, Huanghuai and other places, there will be frontal rains around the 21st, and the cumulative rainfall is generally 1 to 8 mm, which is beneficial for planting cotton and other crops. On the 21st to 22nd, there will be a precipitation process in the dry areas of Yunnan and southern Sichuan. The rainfall is generally 5-10 mm, and the rainfall distribution is uneven, which is conducive to replanting and replanting dryland crops.
The northeast region will enter the peak period of spring sowing. It is suggested that the weather should be grasped and the progress of rice planting and breeding should be accelerated. The already-sowed areas should be protected from wind and heat insulation in the nursery greenhouses; the drought-stricken areas in the west can be planted by rain or "watering". Such measures will promptly sow spring corn; the eastern region will seize the time to plow the ploughing, increase the ground temperature, and create suitable conditions for corn planting.
The Yangtze River Basin should use the gap of the precipitation to clear the ditch, reduce the soil moisture in the field, and ensure that the dry land crops such as cotton are planted at the right time. In southern Sichuan and northern Yunnan, it is necessary to seize the favorable opportunity of precipitation, do a good job of water storage and conservation, and timely replant or replant dryland crops.
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