A non-full irrigation experimental cultivation device

Abstract

The invention discloses an experimental cultivation device for insufficient irrigation, which comprises a funnel, a cultivation barrel, four seepage pipes are spirally distributed on the cultivation barrel, the upper end of the seepage pipe is connected with a two-way interface, and the two-way interface is connected with a detachable water delivery pipe. Connected, the water delivery pipe is connected to the five-way interface respectively, the five-way interface is connected to the funnel, the seepage holes are evenly distributed on the four seepage pipes, and the lower end of the exhaust pipe and the seepage pipe is connected to the three-way interface at the bottom of the cultivation bucket. The invention can quickly balance the water in the cultivation bucket, and at the same time make the water distribution more uniform, which not only meets the requirement of precise control of water in the insufficient irrigation cultivation experiment, but also improves the efficiency of the insufficient irrigation experiment and ensures the accuracy of the experimental data The scientific nature of the experimental results.

Description

technical field [0001] The invention belongs to the field of irrigation devices, and relates to an experimental cultivation barrel for insufficient irrigation and an irrigation device. Background technique [0002] In pot experiments, the irrigation methods are mainly divided into direct irrigation and pipe insertion irrigation. For direct irrigation, the moisture content of the upper layer of the substrate (for example, soil) is very high, far exceeding the field water holding capacity, while the moisture content of the lower layer of the substrate gradually decreases with increasing depth, which results in uniformity of moisture distribution throughout the substrate It is difficult to meet the basic requirements of insufficient irrigation experiments; at the same time, because the infiltration and equilibrium process of water takes a long time, a large amount of water on the surface will be lost due to evaporation, which seriously affects the insufficient irrigation experi...

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Problems solved by technology

But the disadvantage is that the surrounding area of ​​the nozzle in the matrix is ​​wet first, and the moisture content is very high, far exceeding the field water holding capacity, and this moistening is only partial, and it takes a long time to achieve the uniform distribution of moisture in the entire matrix

[0003] Chinese patent CN207820539U discloses a root layer infiltration fertilization system, which adopts the method of arranging a plurality of branch pipes arranged in a spiral shape on the main pipe, which solves the problem that sprinkler irrigation and drip irrigation cannot effectively irrigate and fertilize the roots of plants, and avoids waste by recycling , to a certain extent, speeds up the dispersion of water and fertilizer in the root system of plants, but it is still unable to achieve rapid and uniform distribution of water in the entire substrate under insufficient irrigation conditions, and the diameter of the branch pipe is smaller than that of the main pipe, which increases the flow resistance and requires additional water. Pumping measures to ensure that water and fertilizer can reach the irrigation location through the seepage irrigation pipe network

[0004] Chinese patent CN205727247U discloses a potted pot capable of automatic watering. A spirally coiled water seepage pipe is arranged at the bottom of the planting area of ​​the pot body and communicated with the water storage area on one side of the planting area, which solves the problem of automatic and adjustable watering, but Since the seepage tubes are located at the bottom of the planting area, it is not possible to achieve a quick and even distribution of water throughout the substrate

[0005] In order to overcome the shortcomings of the current irrigation method, such as uneven distribution of water in the matrix after irrigation, and too long time for water to reach equilibrium in the insufficient irrigation experiment, it is urgent to propose a method that can quickly and evenly distribute water in the entire matrix. Insufficient irrigation experimental cultivation device

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