Hainan low temperature has advantages and disadvantages for agricultural production, melons and fruits should pay attention to warm fertilization and promote growth.

Some time ago, Hainan experienced two cooling processes. From January 2 to 3, 2011, affected by weak cold air, the northern, central and eastern parts of the island experienced rainy weather, the highest temperature dropped significantly, and the temperature difference between day and night decreased. There are small showers in the western and southern regions. The current low temperature has advantages and disadvantages for agricultural production price trends. The impacts are as follows:

Rubber: At present, most rubber in Hainan Province is in the deciduous period. In the near future, the process of low temperature and rainy weather continues to occur, which is beneficial to rubber deciduous leaves, and at the same time reduces the pathogen of "two diseases", which is conducive to the prevention and treatment of rubber "two diseases".

Fruit trees: The continuous low temperature is beneficial to the flowering and bud differentiation and control of the longan in the Hainan Province. Most of the "Zizixiao" lychee gradually enter the flower bud differentiation stage. However, it is not good for the growth and flowering of banana trees, mangoes and other fruit trees.

Winter melons and vegetables: During the rainy weather, the sunshine is less, causing the decline of photosynthesis of most melons and vegetables, and the growth is hindered. The melons and vegetables are easy to cause falling flowers and fruits, and the resistance to pests and diseases is also reduced. However, due to the relatively short time of low temperature, leafy melons have not yet suffered from large-scale cold damage.

Aquaculture: The continuous low temperature and rainy process make the cultured species eat and grow slowly, and are also prone to disease, resulting in higher prices of cultured aquatic products in different regions.

Weather trends in the coming week

The Hainan Provincial Meteorological Bureau predicts that on January 6 and 9, 2011, two weak cold air will be added to Hainan, and the rainy weather in the northern, central and eastern regions will be maintained. The western and southern regions will be dominated by cloudy weather. The temperature changes are not large.

From the 4th to the 9th, there were light rains in the northern, central and eastern parts of Hainan, cloudy and cloudy in the west and the south; the lowest temperature was 13~15°C north of Wuzhishan and 15~17°C south of Wuzhishan, the highest temperature Wuzhishan It is around 20 °C in the north and 25 °C in the south of Wuzhishan.

Production advice

1. Pay close attention to the rainy weather process. The winter seedlings in the seedling stage should enhance the light as much as possible, improve the light and productivity of the seedlings, ensure the normal growth of the seedlings, and appropriately spray the growth regulators in the flowers and fruits to reduce the flowering, Fruit drop. In addition, continue to do a good job of warming and warming and disease prevention and control of melon gardens; after the weather is warming up, we should increase the amount of fertilizer to promote rapid growth in time, try to win the winter market and increase the output value.

2. Rainy and illuminating weather, the growth of rubber trees will be inhibited, it is recommended to stop cutting trees. Weed removal in rubber forests to avoid pests and diseases. In addition, pay attention to the control of the greening and fertilization of the old tree fat points in Jiaoyuan to ensure normal production in the coming year.

3. Banana, "March Red" lychee, etc. Pay attention to prevent cold work and avoid adverse effects of low temperature hazard on production. At present, precipitation in some parts of southern Hainan Province continues to be less and less, which has an adverse effect on the early-maturing varieties of "Lianhuahong" and mango heading and flowering. The corresponding orchard should pay attention to timely and proper irrigation. After the weather warmed up, the last autumn leaf color of the longan did not enter the green and mature plants, paying attention to the application of foliar fertilizer to promote its timely entry into the relative dormant period to accumulate nutrients.

4. All localities should do a good job of heat preservation of cultured species, and feed them appropriately in combination with the feeding conditions of cultured species. Conventional fish broodstock should be cultured in a special pool. Recently, the intensive cultivation in the early stage has been carried out to increase the fertilizer and promote the development of the gonads to ensure smooth spawning next year. It is reserved for the Spring Festival and the commercial fish, shrimp and crabs that are listed in April-May of the following year. It is necessary to raise the special pool, feed the feed regularly, keep the water fresh, promote its protection, and ensure the winter season safely.