In the first half of December, the temperature in normal parts of Fujian was normal, which was conducive to the growth and development of winter crops such as vegetables, flue-cured tobacco and potatoes, and fruit trees such as alfalfa. However, the obvious cooling and continuous low temperature caused by frequent strong cold air causes freezing damage to vegetables, potatoes and other crops, such as bananas and alfalfa.
The Fujian Meteorological Bureau estimates that the precipitation in Fujian will be omitted in January; the monthly average temperature is slightly lower, and the monthly extreme minimum temperature is slightly lower. It is expected that the main cold air processes affecting Fujian Province during the month will generally appear from the end of December to the beginning of January (December 30 to January 2), the first half of the period (6-8 days), and the mid-term (13-15 days). ), the early period of the second half (22 to 25 days) and the end of the second to the beginning of February (30 to February 2).
In January, the temperature changes greatly, and there will be a staged strong cooling process. All localities should pay attention to the prevention of low temperature and cold damage; the cold-tolerant leafy vegetables such as spinach, lettuce, etc. and cruciferous vegetables such as Chinese cabbage, cabbage, cauliflower should be strengthened. In the field management, the cold-proof and anti-freeze work of vegetables should be done well; at the same time, the longan is in the winter shoot period in January, the agricultural activities are mainly for soil-cultivation and winter-control work, and the litchi is in the stage of flowering or inflorescence differentiation, which can be controlled by chemical agents. ear. Bananas are in a slow growth period. In case of strong cold air, they can be used for cold-proof and anti-freezing by means of wrapping false stems, bagging, and smoking. The cockroach is in the stage of developing young fruit, and can carry out the methods of soil cultivation and fruit bagging to prevent cold and freeze.
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