Hunan Meteorological Observatory estimates that 29 to 30 days: there are small to moderate showers or thunderstorms on cloudy days in Hunan Province. Since May 1st, it has been affected by the cold air on the ground. The province of Hunan has a process of cooling and precipitation from north to south.
At present, Hunan double-season early rice generally enters the transplanting stage. Although the cold air force is weak during the period, it is necessary to prevent enough damage caused by strong local precipitation and strong convective weather, pay close attention to weather changes, and catch higher temperatures. At 15 °C, the wind with a wind power of less than 4 is suitable for throwing rafts at the right time. At the same time, it is necessary to pay attention to keeping shallow water before throwing to avoid deep water leaching. Before the cold air comes, strengthen the field management of the transplanted early rice, pay attention to irrigation and heat preservation.
The rice fields that have been broadcasted must be well-sealed, ditches and drains to ensure that there is no water in the rainy days, and that the management of the seedlings should be done to prevent the occurrence of seedling pests and diseases.
As rapeseed gradually enters the mature harvesting period, all localities must pay attention to strengthen the later management of crops, and clear the ditch in time to prevent the rape from lodging and affecting the yield. Harvest the mature rapeseed in time, grab the sunny sun, thresh and harvest.
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