Method for preventing low-temperature cold damage of rice

Abstract

The invention discloses a method for preventing cold damage to rice, preparing dry weed or other burning material around paddy field, burning the material when there is continuous overcast sky to make smoke and form artificial cloud layer to prevent low temperature light emitted by sunlight until high temperature light is emitted. This invention can maintain needed temperature in growing process, and is good for plump seed and guarantee stable and high productivity. The technology of this invention is simple and suitable to spread.

Description

Technical field [0001] The invention relates to a method for preventing low-temperature chilling damage of rice. Background technique [0002] The natural cold damage of rice comes from the low temperature light emitted by the sun. The sun emits many kinds of light, including high-temperature light and low-temperature light. The high-temperature light contains more heat, while the low-temperature light does not. People can feel that the low temperature light is before the sun rises and after the setting. The reason is that the low temperature light is more dispersed than the high temperature light. The sunlight forms the edge of the sunlight in the shape of the earth's surface. The low-temperature light scattered from this edge first touches the earth's surface and the temperature drops sharply. At this time, the rice will be affected by low-temperature damage. [0003] The climatic cloud cover in the rice heading season increases. Generally, the thick cloud cover lasts for about...

AI Technical Summary

Problems solved by technology

That is to say, if the low-temperature ground has not been exposed to sunlight for about seven days and is then affected by low-temperature light, the rice will be affected by chilling damage, and the grains of the rice ears in autumn will not be full, which will result in a loss of yield.