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Method and system for improving saline-alkali land on basis of dark pipes and saline-alkali tolerant rice

A saline-alkali-resistant and saline-alkali land technology, which is applied in the field of saline-alkali land improvement methods and systems, can solve the problems of rising groundwater levels in saline-alkali land, aggravating the degree of saline-alkali land, and unsatisfactory effects, and achieve the effect of reducing evaporation, reducing salt content, and reliable design principles

Inactive Publication Date: 2018-10-19
中天水土治理科技(山东)股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The effect of the traditional single governance method is not ideal, and because there are serious mutual constraints among various methods, simply integrating the traditional single governance method will only take time and effort, and the effect will be very slow, and may even aggravate the saline-alkali land. (For example, when chemical fertilizer improvement conflicts with biological improvement, it may lead to the death of organisms, and the absorbed salt re-enters the soil; when physical improvement conflicts with irrigation and salt washing, it may cause the groundwater table of saline-alkali land to rise)
Also because of this, there are many technical difficulties in combining various means to treat saline-alkali land

Method used

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  • Method and system for improving saline-alkali land on basis of dark pipes and saline-alkali tolerant rice
  • Method and system for improving saline-alkali land on basis of dark pipes and saline-alkali tolerant rice
  • Method and system for improving saline-alkali land on basis of dark pipes and saline-alkali tolerant rice

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Effect test

Embodiment 1

[0036] This embodiment provides a method for improving saline-alkali soil based on dark pipes and saline-alkali-tolerant rice, including the following steps:

[0037] S1: Plant saline-alkali-tolerant rice crops in the planting soil layer of saline-alkali land, and alternately irrigate brackish water and fresh water according to the water requirement of saline-alkali-tolerant rice;

[0038] S2: Arrange the irrigation pipe network and the concealed salt discharge pipe network in the salt discharge layer, supplement the water source into the salt discharge layer through the irrigation pipe network, collect the salt water through the concealed salt discharge pipe network, and discharge the salt water into the salt discharge layer .

Embodiment 2

[0040] Such as Figure 1-3 As shown, the present invention provides a saline-alkali soil improvement system based on dark pipes and saline-alkali-tolerant rice, which includes a planting soil layer 100 and a salt-discharging layer 200; the planting soil layer 100 is planted with saline-alkali-tolerant rice, so An irrigation pipe network 1 and a hidden pipe salt drainage pipe network 2 are provided in the salt drainage layer 200 described above;

[0041] Wherein, the position of the concealed pipe salt discharge pipe network 2 in the salt discharge layer 200 is lower than the position of the irrigation pipe network 1 in the salt discharge layer 200, and the irrigation pipe network 1 and the concealed pipe salt discharge pipe network 2 are arranged vertically;

[0042] The concealed pipe salt discharge pipe network 2 includes a primary water suction pipe 2.1 and a secondary water collection pipe 2.2, and the primary water suction pipe 2.1 is connected to the secondary water collectio...

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Abstract

The invention relates to a method and system for improving saline-alkali land on the basis of dark pipes and saline-alkali tolerant rice. The system comprises a planting soil layer and a salt discharging layer; the saline-alkali tolerant rice is planted on the planting soil layer, and an irrigation pipe net and a dark pipe salt-discharging pipe net are arranged in the salt discharging layer; the dark pipe salt-discharging pipe net comprises a first-level water absorption pipe and a second-level water collection pipe; the irrigation pipe net comprises main irrigation pipes and a branch irrigation pipe, and the branch irrigation pipe is connected to the main irrigation pipes and also connected to droppers or a ground bolt flooding pipe; the second-level water collection pipe is connected toa water tank A in a water treatment tank, the water tank A in the water treatment tank is connected to a water tank B in the water treatment tank through an electromagnetic valve, the water tank B isconnected to a water outlet pipe, an irrigation pump is arranged on the water outlet pipe, the water outlet pipe is connected to the water inlet end of the irrigation pipe net through the irrigation pump, and the water inlet end of the irrigation pipe net is also connected with a fresh water source through the water inlet pipe. A liquid level sensor is arranged in the water tank A, the electromagnetic valve is connected to the output end of a microcontroller, and the signal input end of the microcontroller is connected to the liquid level sensor.

Description

Technical field [0001] The invention belongs to the technical field of saline-alkali soil desalination treatment, and specifically relates to a method and system for improving saline-alkali soil based on dark pipes and saline-alkali-tolerant rice. Background technique [0002] Land salinization is a worldwide problem facing mankind. my country has a large area of ​​salinized land, which is mainly distributed in the North China Plain, the Northeast Plain, the inland areas of the Northwest and the coastal areas. The survival rate of plants grown in saline-alkali land is generally very low, which seriously affects my country's agricultural and forestry production. [0003] When there is too much salt in the soil, salt damage will form and affect the normal growth of plants. Saline-alkali can cause two kinds of harm to plants: one is toxic effect. When plants absorb more sodium or chloride ions, it will change the structure and function of cell membranes and eventually cause plant dea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02
CPCA01B79/02
Inventor 卜凡敏于利涛曲海滨潘玉玲刘洪岩单晶晶
Owner 中天水土治理科技(山东)股份有限公司
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