At present, crops such as early rice and spring sowing vegetables in Jiangxi Province will enter a large-scale sowing and breeding period. Studies have shown that during the spring sowing period, if there is a low-temperature continuous rainy weather with a daily average temperature of less than 10 °C for 3 to 4 days and less than 1 hour of sunshine per day, it will have a slight adverse effect on the breeding of spring-sown crops; the duration is 5 days or more. Will cause serious adverse effects.
According to the latest weather forecast, from 21 to 22, it was affected by the cold air in the north. The province had a cooling and precipitation process. The northerly wind increased, and the process cooled by 9-11 °C. After the cold air, the temperature in the province rose slowly. It is expected that there will be spring low-temperature and rainy disasters in the central and northern regions of Jiangxi Province.
In order to alleviate the impact of low temperature and rainy weather on the work of spring sowing and breeding, it is recommended to take measures to strengthen prevention:
1. The sheds of early rice and vegetables that have been sown should be strengthened and compacted to facilitate heat preservation; conditional greenhouses can adopt temperature-increasing measures for greenhouse regulation; the rain stop interval can remove water accumulated on the membrane and increase transmittance.
2, it is not suitable for sowing seedlings in the process of cold air; it is suitable to soak seeds two days before the end of cold air, and use the heat preservation method to sow seeds in time after the temperature rises; large farmers should be planted in batches in batches.
3, rapeseed, vegetables, etc. in the field crops use the rain-free period to clear the ditch drainage.
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