Heat supply and drip irrigation system of root zone

Abstract

The invention discloses a heat supply and drip irrigation system of a root zone. The heat supply and drip irrigation system of the root zone is characterized by comprising an air compressor, an air storage tank, a pressure adjuster, a heating pipe and a drip irrigation pipeline system, wherein warm air is conveyed to the root zone of a plant by an underground drip irrigation system. Therefore, air and heat environments around the root of the plant can be effectively improved, the adverse effects of low-temperature chilling damage are avoided, and the purposes of improving the utilization efficiency of liquid manure, increasing economic yield and improving harvest quality are fulfilled. According to the system, air can be heated by circulating hot water or in a manner of electrifying to warm; and the pressure adjuster can control the air pressure inside the air storage tank within a certain range, adjusts the additive amount of air by a change of the pressure of the air storage tank, and is matched with the air storage tank with large size at the same time so as to avoid frequent start of the air compressor.

Description

Technical field: [0001] The invention relates to the technical field of agricultural irrigation, in particular to a root zone heat supply drip irrigation system. Background technique: [0002] Soil temperature is affected by factors such as solar radiation, heat balance characteristics of near-Earth space, atmospheric temperature, and soil moisture status. Soil temperature is one of the comprehensive indicators that characterize the soil heat status, and it is also an important indicator of the earth's surface energy balance and greenhouse effect. Soil temperature is an important factor affecting crop growth and soil fertility changes, reflecting the energy flow and material exchange of the soil-vegetation-atmosphere system. Soil temperature changes the hydraulic conductivity of the plant root system and the availability and movement characteristics of soil water through the influence of the soil water temperature in the root layer of the plant and the pore structure and wat...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, and provide a root zone heat supply drip irrigation system, which can effectively improve the root zone environment of plants by using the underground drip irrigation system to transport warm air to the root zone Soil low temperature stress is unfavorable to plant roots, so as to improve plant water and fertilizer use efficiency, increase economic output and improve quality

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