Differential irrigation device and differential irrigation method

Abstract

The invention provides a differential irrigation device and a differential irrigation method. The device mainly comprises supporting plates, water guide tubes, water tanks, a base and water supply fiber felt, the water supply fiber felt is clamped between the notches of the lower ends of the water guide tubes and the bulge on the base, and is placed 0.1m to 1m under soil nearby the root of a plant, and soil is filled and consolidated. The two supporting plates are assembled and laid on the soil of the root of the plant, and the water guide tubes are inserted into water guide tube-mounting holes; when water needs to be supplied, the water tanks are put into the water guide tubes, and at the moment, pistons are in contact with water extractor top ends; under the gravitational effect of the water in the water tanks, the water extractor top ends gradually push up the pistons to move along slide way plates, and when the lower ends of the pistons pass by the positions of water inlets, the water flows to the water supply fiber felt via the water guide tubes; when the water quantity in the water tanks is reduced, the pushing force of the pistons is gradually less than the elastic force of springs, as a result, the lower ends of the pistons are lower than the positions of the water inlets, and the water flow is stopped from entering. The water flowing to the water supply fiber felt is supplied by the water-absorbing effect of fibers, the capillary effect and a non-woven fiber mesh structure.

Description

technical field [0001] The invention relates to an irrigation device and method, in particular to a differential irrigation device and method using superfine fibers to replace water delivery pipes, and belongs to the field of non-woven fiber applications. Background technique [0002] In recent years, with the impact of environmental pollution, natural disasters, and human factors, the arid land in our country has gradually increased, the arable land has been continuously reduced, and the situation of water shortage has become increasingly serious. It is particularly important to rationally utilize land and water resources, improve soil environment, and promote crop yield and vegetation growth. [0003] At present, the micro-drip irrigation technology in agriculture: such as under-film irrigation, plow-layer irrigation, etc., is relatively advanced and mature in water-saving irrigation. Although the water-saving effect is good and the crop yield is increased, its cost is hig...

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Problems solved by technology

[0003] At present, the micro-drip irrigation technology in agriculture: such as under-film irrigation, plow-layer irrigation, etc., is relatively advanced and mature in water-saving irrigation. Although the water-saving effect is good and the crop yield is increased, its cost is high and it is easy to block; Patent CN200380100379.3 and patent CN201210558205.2 propose a trace irrigation method and system. This method uses the capillary force of the fiber bundle in the water control head to realize automatic water absorption irrigation. The water level difference can realize the water supply

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