Automatic drainage device for farmland

Abstract

The invention discloses an automatic drainage device for a farmland. The automatic drainage device for the farmland relates to the technical field of agricultural irrigation and drainage. A photovoltaic panel is fixed to the top part of a rectangular profile and can provide electric energy for a storage battery, and meanwhile, the storage battery can provide a power supply for a coil; device fixing plates are fixed to the left side and the right side of the drainage device; a floater device is fixed to a corner part of one side of the front part of the drainage device, and decides the on and the off of a whole circuit, i.e. decides whether water is drained or not mainly according to a farmland water level condition; and a bottom fixed cone is arranged in the center of the bottom part of the device so as to prevent the device from displacing or leaking water due to bad contact of two sides. According to the automatic drainage device for the farmland provided by the invention, the farmland water layer drainage control depth can be artificially determined according to a crop growth situation, excessive water of the farmland can be timely and effectively self-discharged, and meanwhile, the farmland water layer control depth can be artificially set according to the crop condition without the need for manned watching, so that the drainage efficiency is greatly improved, and the automatic drainage device for the farmland is reasonable in structure design, high in practicability, and convenient to popularize and apply.

Description

technical field [0001] The invention relates to an automatic drainage device for farmland, which belongs to the technical field of agricultural irrigation and drainage. Background technique [0002] In areas with a lot of rainfall in my country, especially in the south, due to excessive precipitation, surface runoff drainage is not timely or cannot be removed on time, and farmland water exceeds the depth and duration of crops' tolerance to flooding, resulting in a major disaster in agricultural production. These reasons for crop yield reduction are mainly reflected in the fact that the depth of accumulated water is too large and the time is too long, so that the air in the soil is discharged one after another, resulting in insufficient oxygen supply to the roots of the crops, and difficulty in breathing in the root area, resulting in the production of a large amount of harmful and toxic substances such as ethanol. Waterlogging and soil return to salinity will affect the grow...

AI Technical Summary

Problems solved by technology

[0002] In areas with a lot of rainfall in my country, especially in the south, due to excessive precipitation, surface runoff drainage is not timely or cannot be discharged on time, and farmland water exceeds the depth and duration of flood tolerance of crops, resulting in a large reduction in agricultural production.

These reasons for crop yield reduction are mainly reflected in the fact that the depth of accumulated water is too large and the time is too long, so that the air in the soil is discharged one after another, which makes the oxygen supply to the roots of the crops insufficient, and the root area has difficulty breathing, resulting in the production of a large amount of harmful and toxic substances such as ethanol. waterlogging and soil return to salt, thus affecting crop growth, causing crop yield reduction or even death

[0003] At present, the main problems in terms of farmland drainage are as follows: 1. Lack of farmland water level monitoring system or insufficient monitoring; 2. Untimely drainage

In the current farmland drainage, the water in the farmland has exceeded the flood tolerance depth of the crops before drainage is carried out. In this way, the crops will be flooded for a long time. Once the moisture in the farmland exceeds the flood tolerance duration of the crops, the crops will often be greatly reduced or even die.

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