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As the saying goes, "Swiss Snow is a good year," and it means that snow is a good sign for agriculture in a year. And what benefits does snow bring to agriculture? Thousands of years of production practices and scientific experiments tell us that snow has six energy elements for agriculture:
First, snow can impound drought. Snow falls into the field and becomes a natural cover, which can effectively suppress the evaporation of soil moisture. When the snow melts, the snow water infiltrates into the soil and increases the moisture in the soil. It is very beneficial to the growth of winter wheat, winter rapeseed and other crops, and it can meet the demand for water after the crop turns green, which plays a role in water storage and drought relief.
Second, snow can prevent cold and keep warm. The cedar that has just fallen to the earth is soft and has many voids. The air in the void is a poor conductor of heat, so that the heat in the soil is not easily dissipated. At the same time, cold air is prevented from infiltrating into the soil. Therefore, the snow can be protected against cold and heat, and the crop can be protected from further damage. Low temperature damage is conducive to the safe wintering of crops.
Third, snow can produce nitrogen fertilizer. Snow can absorb a large amount of free gas in the air. Through chemical reaction, it can generate nitrides. When the snow melts, these nitrides can seep into the soil with snow, thus increasing soil fertility. According to statistics, one liter of snow water contains 7.5 milliliters of nitride, which is five times that of one litre of rainwater.
Fourth, snow can eliminate eggs. The accumulation of snow obstructs the circulation of surface air, which can suffocate some of the pests that overwinter in the soil. When the snow melts, the soil temperature suddenly decreases due to the large amount of heat consumed. At this time, the pests and eggs on the soil surface and crop roots can be frozen and the pests in the growing crops are greatly reduced.
Fifth, snow can increase production. According to scientific experiments, snow water contains less heavy water, and each kilogram of snow contains heavy water (æ°š) which is a quarter of normal water, and heavy water has the effect of inhibiting crop growth, so soaking with snow, watering, and spraying the leaves All kinds of crops and fruits have the effect of increasing yield.
6. Snow can improve quality. Watering crops with snow can improve crop quality. Some people have made investigations. The reason why Xinjiang's cantaloupe and non-nuclear grape (dry) are sweet and delicious is that they have a lot of snow water. Food and fruits that are watered with snow will also significantly improve quality.
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