Covering, infiltration and leaching device for saline-alkali soil improvement, and saline-alkali soil improvement engineering operation method

A technology of saline-alkali soil and dipping, which is applied in land preparation methods, watering devices, botanical equipment and methods, etc., can solve the problems of large amount of engineering and blocking salt return, and achieves reduction of consumption, shortening of engineering period, and reduction of treatment engineering amount. Effect

Active Publication Date: 2022-02-11
CHENGDU TOBEST DIYUAN TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It uses bulldozing-pipe-laying gravel layer-covering fertilizer-leveling soil-alkali washing; through the set gravel layer, the capillary water in the soil is cut off to transport salt to the surface, thereby achieving the purpose of blocking the return of salt; its implementation process There are still defects in the large amount of engineering

Method used

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  • Covering, infiltration and leaching device for saline-alkali soil improvement, and saline-alkali soil improvement engineering operation method
  • Covering, infiltration and leaching device for saline-alkali soil improvement, and saline-alkali soil improvement engineering operation method
  • Covering, infiltration and leaching device for saline-alkali soil improvement, and saline-alkali soil improvement engineering operation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] This embodiment discloses a saline-alkali land improvement covering immersion device, which includes a fixed bracket 104 and a cover assembly 105. The fixed bracket 104 is used to be installed on a walking device. Constitute a working vehicle with the traveling wheels 106, and the traveling device is used to drive the fixed support 104 to move in the saline-alkali land 110;

[0066] Wherein, a plurality of drip irrigation branch pipes 107 are arranged on the fixed support 104, and the drip irrigation branch pipes 107 are connected with the main pipe 108 of drip irrigation, and a plurality of drip irrigation heads 109 are arranged on each drip irrigation branch pipe 107;

[0067] The covering assembly 105 is used to be arranged in the saline-alkaline ground 110 to be soaked, and the fixed support 104 moves back and forth in the saline-alkaline ground 110 under the drive of the walking device.

[0068] In actual use, it is mainly used to realize the treatment of saline-al...

Embodiment 2

[0076] see Figure 1-Figure 3 , this embodiment discloses a saline-alkali land improvement engineering operation method, comprising the following steps:

[0077] Step 1: Dredging the canal system, specifically including the construction of underground alkali discharge pipes, ditches or tunnels; wherein, the depth is controlled between 1-1.5 meters to create landform conditions that are conducive to salt washing and salt discharge;

[0078] Step 2: Leveling the land; leveling the land can reduce surface runoff, improve the effect of raining salt or washing salt with water, or snow melting in winter to reduce salt, and at the same time prevent depressions from being flooded and high places from returning to salt, thereby improving the governance effect.

[0079] Step 3: Shock wave blasting and deep loosening of 0.3-1.2m of soil, and drip irrigation and soaking of saline-alkali land 110;

[0080] Step 4: Sand filling by shock wave jetting;

[0081] It needs to be further elabor...

Embodiment 3

[0106] This embodiment is further optimized on the basis of Embodiment 2. In this embodiment, it also includes step 5, planting saline-alkali-tolerant economic crops and maintaining them; planting saline-alkali-resistant crops such as rapeseed, Jerusalem artichoke, wolfberry, reed, Watering, fertilizing and shading should be done well for ice grass, pasture grass, etc. Among them, fertilization can be sprayed and deep applied to improve the utilization efficiency of fertilizers; the residual branches left after crop harvesting can be crushed and then filled into the soil by air blast and subsoiling to increase the organic matter content and permeability of the soil, and further Increase the improvement effect of 110 in saline-alkali land.

[0107] Regular management and protection will be carried out in the later stage of treatment. After steps 1 to 5 are performed, a soil sampling point can be set every 100 square meters, and each sampling point can be set with three soil dep...

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Abstract

The invention discloses a covering, infiltration and leaching device for saline-alkali soil improvement, and a saline-alkali soil improvement engineering operation method. The infiltration and leaching device is mainly composed of: a fixing support, a covering component, a walking device, walking wheels, drip irrigation branch pipes, and the like. The two agricultural modes of drip irrigation and covering are combined for the first time and then innovatively applied to saline-alkali soil treatment; a movable saline-alkali soil covering, infiltrating and leaching device is developed, and an original broad irrigation mode is changed into a small-amount and multi-time infiltrating and leaching mode, so that ineffective consumption of water resources caused by saline-alkali leaching is greatly reduced. According to the operation method, the hardened saline-alkali soil is deeply scarified through in-situ spray explosion, the fundamental problem of salt return caused by the soil capillary effect is thoroughly solved while the permeability of the soil is recovered, that is, the capillary in the soil is cut off through shock wave spray explosion deep scarification soil and shock wave spray sand filling, and the capillary is kept in a fractured state for a long time. A covering, infiltrating and leaching device is used for salt leaching, so that an economical and feasible method is provided for solving the problem that saline-alkali soil treatment is prone to repetition.

Description

technical field [0001] The invention belongs to the technical field of effective improvement of saline-alkali land, and in particular relates to a covering and washing device for improving saline-alkali land; meanwhile, the invention relates to an engineering operation method for improving saline-alkali land. Background technique [0002] At present, there are about 15 billion mu of saline-alkali land in the world. There are about 400 million mu of saline-alkali soil in our country, accounting for 7% of the cultivated land area. More than 100 cities in northern my country are distributed with saline-alkali soil to varying degrees. The improvement of saline-alkali land has always been a difficult problem in the world. one. [0003] Saline-alkali soil is a general term for saline soil and alkaline soil, which means that the salt content is above 0.2%, or the soil colloid absorbs a certain amount of exchangeable sodium, and the alkalization degree is above 20%, also known as sal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B77/00A01G13/02A01B79/02A01B35/02A01G25/09
CPCA01B77/00A01G13/0262A01G13/0275A01B79/02A01B35/02A01G25/09Y02A40/22
Inventor 马玲吴福成刘小明李加林
Owner CHENGDU TOBEST DIYUAN TECH CO LTD
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