The Hunan Provincial Meteorological Observatory estimates that the average temperature in the whole province in late March will be low, around 9 °C, and the extreme minimum temperature will be around 5 °C. The amount of rain in the north of Hunan is normal or slightly less, 30 to 50 mm, and most of the other areas are less than 20 to 40 mm; the rainy day is about 5 days.
The main precipitation process in the first ten days: from 21 to 23 days, it was affected by the high-altitude low trough and the strong cold air on the ground. There was a small to moderate rain process in the province, and there was heavy rain in the north of Xiangzhong (there was a sleet in the north of Hunan). It will be accompanied by the weather process of increasing and cooling the north wind. The cooling process in the southern Hunan process is 10~12 °C, and some cold wave occurs. On the 24th to 25th, it is affected by the cold air from the south, and some areas have light rain; 30~31 days Affected by high altitude and low trough, there will be a precipitation weather process in the province.
According to the weather forecast in late March, the recommendations for agricultural production are as follows:
1. In the early period of late March, there will be low-temperature and rainy weather, and some areas will have cold springs, which is not conducive to spring sowing; all localities should guard against the impact of continuous rain and cold spring on spring sowing.
2. Early-maturing varieties of early rice are recommended to be planted in the warmer weather in the middle and late March of March or early April. They should not be grazing early in the season to prevent the "slow temperature" from being harmed during the differentiation period of the young spikes.
3. At present, rapeseed generally enters the flowering stage, and some are in the flowering stage. It is the vegetative growth and reproductive growth stage. The boron fertilizer should be sprayed in time to increase the effective number of branches, the number of pods per plant and the 1000-grain weight, and strive for high yield of rapeseed.
ZHITONG PIPE VALVE TECHNOLOGY CO.,LTD , https://www.ztongvalve.com