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A method for maintaining constant negative pressure irrigation

A negative pressure and irrigation technology, which is applied in botany equipment and methods, root waterers, applications, etc., can solve the problem of low utilization efficiency of negative pressure irrigation systems

Active Publication Date: 2019-05-28
INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] However, in this negative pressure irrigation system, heavy liquid such as mercury needs to be injected into the negative pressure adjustment device. In the actual use process, it was found that after 2 to 3 months of operation, mercury generally oxidized and precipitated, causing the system to stop operating, making the negative pressure irrigation system Utilization efficiency is not high

Method used

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  • A method for maintaining constant negative pressure irrigation
  • A method for maintaining constant negative pressure irrigation
  • A method for maintaining constant negative pressure irrigation

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Embodiment Construction

[0049] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0050] It should be clear that the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0051] figure 2 It is a schematic structural diagram of constant negative pressure irrigation equipment according to an embodiment of the present invention. see figure 2 , the equipment includes: a through container 201, a porous medium plate 202 and a U-shaped container 204, wherein,

[0052] The through-container 201 is in the shape of an inverted cup, and the top is provided with an air outlet port, which communicates with the bottom of the external water storage, and the bottom is open;

[0053] The porous m...

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Abstract

The embodiment of the invention discloses a method for maintaining constant-negative-pressure irrigation. The method includes the steps that a constant-negative-pressure irrigation device comprising a through container, a porous medium plate and a U-shaped container is arranged, wherein the through container is in an inverted cup shape, an air outlet connector is formed in the top of the through container, the air outlet connector is communicated with the bottom of a water storage device, the bottom of the through container is open, the bottom of the water storage device is directly communicated with an irrigation sprinkler or communicated with the irrigation sprinkler through a connection pipe, the irrigation sprinkler is placed on the position, where crop roots grow, in soil, the porous medium plate is generally attached to and fixed to the inner side wall of the lower portion of the through container, the attachment portion of the porous medium plate and the inner side wall is sealed, and the through container can be placed in the U-shaped container; irrigation is conducted through the constant-negative-pressure irrigation device, the water storage device and the irrigation sprinkler. By means of the method, continuous and stable negative-pressure irrigation can be guaranteed.

Description

technical field [0001] The invention relates to agricultural irrigation technology, in particular to a method for maintaining constant negative pressure irrigation. Background technique [0002] The water transpired by crops in the process of growth and development is often hundreds or even tens of thousands of times of their own biomass. Since the soil is often difficult to provide the water necessary for the growth and development of crops, in the process of modern agricultural production, through irrigation Replenishing water to the soil, and then meeting the water demand of crops, is an essential agricultural activity. However, this traditional irrigation method has a serious waste of irrigation water resources. In order to effectively reduce the waste of water resources, a new irrigation technology has been proposed in the past 10 years, that is, negative pressure irrigation technology has been gradually developed and applied. This technology can effectively Suppressin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G29/00
CPCA01G29/00
Inventor 龙怀玉丁亚会张认连
Owner INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI
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