Water supply system for water-fertilizer-gas efficient coupling irrigation and irrigation method

A water supply system, water, fertilizer and gas technology, which is applied in the field of agricultural irrigation, can solve the problems of limited air aeration ratio of ejector and lack of oxygen in plants, and achieve the effects of wide ratio range, pollution reduction and utilization efficiency improvement.

Inactive Publication Date: 2013-09-25
LUDONG UNIVERSITY
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Problems solved by technology

[0005] The present invention mainly solves the problems of temporary hypoxia of plant roots caused

Method used

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  • Water supply system for water-fertilizer-gas efficient coupling irrigation and irrigation method

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Embodiment 1

[0022] Example 1, see figure 1 , according to the need to process into a pressurized water tank 1, install a pressure safety valve 2, a water level controller 3, a pressure controller 4, an internal circulation water port 8, a water inlet 9, a sewage outlet 15, and a low water outlet 17 on the pressurized water tank 1 , deflector 18, temperature transmitter 19, dissolved oxygen controller 20, high water outlet 22; pressure safety valve 2, water level controller 3, pressure controller 4 are located at the top of the pressurized water tank 1, on the water level controller 3 There are three control water levels of high water level 5, low water level 6 and reference water level 7, among which the distance between high water level 5 and the top of pressurized water tank 1 is not less than 20cm, and the distance between high water level 5, low water level 6 and reference water level 7 is not less than 15cm The internal circulation water port 8 and the water inlet 9 are located at th...

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Abstract

The invention discloses a water supply system for water-fertilizer-gas efficient coupling irrigation and an irrigation method, which are characterized in that the system comprises a pressure-bearing water tank (1) and an aeration and fertilizing component, wherein the pressure-bearing water tank (1) is provided with a pressure safety valve (2), a water level controller (3), a pressure controller (4), an inner circulating water gap (8), a water inlet (9), a drain outlet (15), a low-post water outlet (17), a guide plate (18), a temperature transmitter (19), a dissolved oxygen controller (20) and a high-post water outlet (22); through the control of water inlet and outlet and aeration, a function of carrying out automatic aeration on liquid in the pressure-bearing water tank (1) can be achieved so as to achieve a preset water-gas mixing ratio. The system can realize water-fertilizer-gas integrated irrigation, therefore, a soil environment of root zones can be significantly improved, and the water and fertilizer utilization efficiencies of crops can be significantly increased.

Description

Technical field: [0001] The invention relates to the technical field of agricultural irrigation, in particular to an irrigation water supply system and an irrigation method with high-efficiency coupling of water, fertilizer and gas. Background technique: [0002] With the improvement of subsurface drip irrigation technology and its large-scale promotion and application, the temporary hypoxia of plant roots caused by ordinary subsurface drip irrigation during irrigation has affected the aeration environment of the soil in the root zone of the field. Using the underground drip irrigation system to transport aerated water or aerated water-fertilizer mixed fluid to the plant root zone can effectively improve the water, fertilizer, air and thermal environment of the plant root circle, so as to improve the efficiency of water and fertilizer use, increase economic output and improve harvest quality. Purpose. How to evenly mix air into the water in the drip irrigation pipeline syst...

Claims

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Application Information

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IPC IPC(8): A01C23/04
CPCY02P60/21
Inventor 张振华雷宏军
Owner LUDONG UNIVERSITY
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