Rapid irrigation and drainage device for paddy field test plot

Abstract

The invention provides a rapid irrigation and drainage device for a paddy field test plot. The device comprises an inlet pipe assembly and a drain pipe assembly, wherein the inlet pipe assembly comprises a horizontal inlet pipe, an outer side vertical inlet pipe and a right angle bent pipe, and the horizontal inlet pipe, the outer side vertical inlet pipe and the right angle bent pipe are connected to form an 'L' structure; and the drain pipe assembly comprises a horizontal drain pipe, an inner side vertical drain pipe, an outer side vertical drain pipe, an inner side right angle bent pipe andan outer side right angle bent pipe, and the horizontal drain pipe, the inner side vertical drain pipe, the outer side vertical drain pipe, the inner side right angle bent pipe and the outer side right angle bent pipe are connected to form a ' ' structure. When the outer side vertical inlet pipe is rotated to a horizontal position, water in an intake canal is poured into the plot through the inlet pipe assembly, and when the outer side vertical inlet pipe is rotated to a vertical position, the irrigation is stopped; when the outer side vertical drain pipe is rotated to a horizontal position,water in the plot is discharged into a drainage canal through the drain pipe assembly, and when the outer side vertical drain pipe is rotated to a vertical position, the drainage is stopped; by rotating the angle of the inner side vertical drain pipe, the height difference between a pipe orifice of the inner side vertical drain pipe and the field surface is adjusted to achieve the purpose of controlling the height of a water layer in the plot.

Description

Technical field [0001] The invention relates to the technical field of agricultural production, in particular to a rapid irrigation and drainage device for a paddy field test plot. Background technique [0002] Rice is a crop that consumes a lot of water. In most rice cultivation areas in my country, flooding irrigation is the main method, with extensive water management and low water use efficiency. At present, rice cultivation and irrigation techniques such as alternate shallow-wet-dry irrigation and aerobic irrigation have been widely promoted, which not only saves water, but also meets the water requirements of different growth periods of rice. At the same time, it improves the nutrient status of paddy fields to achieve a combination of promotion and control. The effect of timely water supply and nitrogen adjustment, stable production and increased production. However, no matter what kind of rice irrigation method, it is necessary to frequently adjust the water layer of the ...

AI Technical Summary

Problems solved by technology

However, the above-mentioned methods all need to lay or build a large number of facilities and structures, which are cumbersome in structure and occupy arable land area, causing great damage to farmland and high input costs, which reduce economic benefits; at the same time, the above-mentioned methods are only for the convenience of farmland irrigation and drainage, and cannot realize Independent, fine water management of paddy fields including research plots

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