A farmland microclimate intervention system using solar energy

Abstract

The invention relates to a farmland microclimate intervention system utilizing solar energy. The farmland microclimate intervention system utilizing solar energy comprises a heat storage and preservation system and a heat supply circulating system. A solar energy absorption and storage material and a heat insulation and preservation material are additionally installed on a water storage pond so that the heat storage and preservation capacity of the water storage pond can be enhanced. In the daytime, water flowing in heat absorbing and releasing branches laid between crop lines is utilized to take away excessive heat of crop canopies, so that air temperature of the surrounding microenvironment of crops is increased, and water in the water storage pond is heated for heat storage. At night and when field heating is required, the hot water in the water storage pond is pumped into the heat absorbing and releasing branches for field heat release so that air temperature of the crop canopies and parts below the canopies can be increased. Consequentially, heat stress on the crops by high temperature in the daytime is relieved, influence on the crop growth by low temperature at night is also reduced, and the purposes of improving the farmland microclimate and improving the yield and quality of the crops are achieved.

Description

Technical field: [0001] The invention relates to a farmland microclimate intervention system using solar energy, belonging to the technical field of farmland meteorology. Background technique: [0002] Temperature condition is one of the most important factors affecting crop growth. Temperature directly affects the physiological metabolic activities of plants, and then affects all aspects of plant growth, such as photosynthesis, respiration, nutrient absorption, growth, and stress resistance of plants. Temperature also affects all aspects of soil fertility, such as soil microbial activity, soil enzyme activity, and transformation of mineral nutrients. Therefore, regulating the ambient temperature of farmland is of great significance for improving crop yield, quality and adversity defense ability. Air temperature is also a key technical problem limiting crop yield potential in areas with low accumulated temperature. However, there is a lack of technical means for farmland ...

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Problems solved by technology

However, there is a lack of technical means for farmland temperature regulation in production. The main reason is that conventional methods to increase the ambient temperature of farmland require the establishment of facility greenhouses or the use of fossil energy for heating. The construction and operation costs are high, construction is troublesome, and it is difficult to popularize and apply on a large scale.

[0003] Xinjiang belongs to a typical inland climate. Although the solar radiation and sunshine hours are relatively high, the temperature difference between day and night is large, which affects the growth and quality of crops. The process of converting sugar into cellulose in cotton fiber is hindered, which reduces the quality of cotton fiber

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