"When the cold dew sees three elephants, the peasants are empty" Which three elephants indicate bad luck? Prepare early
Cold Dew Wind - A cold wind from the north.
Cold dew wind refers to cold winds from the north. As soon as the cold dew season arrives, the temperature in the northern region begins to drop significantly, and the cold air begins to invade, causing cold damage to rice. This is a serious challenge for late rice in southern China. If cold air invades, it can easily affect the flowering, pollination and pulping process of late rice. This will lead to the phenomenon of empty husks and deflated grains in late rice. According to statistics, the occurrence of cold and dew winds will reduce the yield of late rice by about 30%, or even lead to a yield reduction of 70%, or even no harvest. Therefore, farmers should take some effective measures to prevent cold dew.
To improve the resistance of their crops, some experienced farmers will spray their plants with 400 times the solution of potassium dihydrogen phosphate (50 grams of potassium dihydrogen phosphate per 20 kg of water) before the onset of hot and dry winds or cold dew winds. This method can effectively improve the resistance of plants, which can significantly improve crop yields.
Pure rain - a natural enemy that threatens agriculture.
During the cold and dew season, rainy weather can cause many problems for farmers, especially for crops that are about to ripen but have not yet been harvested. Light rain can cause problems such as mildew and germination, reducing the photosynthesis of plants. For late-maturing crops, too much light rain can affect ripening, which means that the yield of late-maturing crops will be reduced. In addition, very wet weather can also affect farming and autumn planting. Seeds that have been sown but have not yet been unearthed are prone to problems such as root composting, which affects the emergence rate of crops such as wheat and wheat, resulting in lower yields.
In response to the impact of rainy weather, farmers can take a series of measures to minimize losses. For example, it is necessary to replant rain-sheltered crops in a timely manner, strengthen drainage and irrigation, pay attention to the prevention and control of crop diseases and pests, and ensure the normal growth and development of crops.
Frosting - the threat of premature aging.
Cold dew is a period of transition from cool to cold, and frost does not bode well for farmers. Frost can cause crops that are not yet fully ripe to die prematurely, severely reducing yields. Especially for crops that are afraid of frost such as sweet potatoes, the early frost in the cold season will seriously affect the expansion of the tubers, resulting in a significant reduction in yield.
Farmers should take appropriate precautions to prevent early frost that may occur during the cold season. Some farmers will take measures early before the arrival of the cold dew season, such as building awnings and covering protective films, to protect crops from excessive frost.
Conclusion. The three meteorological phenomena that occur during the cold dew season – cold dew wind, drizzle and frost – are a failure for farmers. Although we can't change the weather, farmers can take measures to cope with possible situations, reduce losses and increase crop yields through their own efforts and experience. In agricultural civilization, the 24 solar terms are an important reminder to pay attention to the gifts of nature and strive to ensure a good harvest. It also reminds us to pay attention to climate change, protect the environment, promote sustainable development, and create better living conditions for future generations.