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Saline-alkali soil improving method

A technology of saline-alkali land and improver, which is applied in the direction of soil preparation, soil protection, fertilizer made from biological waste, etc., to achieve the effect of strong pertinence, good quality and high fertilizer content

Inactive Publication Date: 2017-08-25
梁勇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the defects in the prior art, the purpose of the present invention is to provide a method for improving saline-alkali land, to reduce soil bulk density and soil salinity in saline-alkali land; to improve soil porosity and soil nutrients, thereby effectively improving soil salinization and reducing soil salinity. Minimize the problems caused by the reduction of grain production, the reduction of vegetation coverage, and the deterioration of the ecological environment; the method provided by the invention has strong pertinence, remarkable effect, is conducive to the popularization and promotion of technology, and can be applied on a large scale

Method used

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Examples

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Effect test

Embodiment 1

[0026] The present embodiment provides a method for improving saline-alkali land, comprising the steps of:

[0027] S1: plow the saline-alkali land successively, the number of times is 3 times, and the plowing depth is 40cm; then, the number of times is 2 times, and the interval between each time is 8 days;

[0028] S2: Level the saline-alkali land after S1 treatment, and level the ground with high digging and low filling, with a maximum slope of 10°;

[0029] S3: The saline-alkali land after S2 treatment is used to drain the brine, and the buried depth of the salt-discharging buried pipe is 1.3m, and the slope ratio is 0.7‰. 30m; the salt discharge concealed pipe is a single-wall corrugated pipe with a hole in diameter of 11cm, and is covered with 15cm thick sand and gravel material;

[0030] S4: Irrigate the saline-alkali land after the treatment of S3 with a water depth of 3 cm and last for 11 days;

[0031] S5: Apply a saline-alkali land improver to the saline-alkali land ...

Embodiment 2

[0033] The present embodiment provides a method for improving saline-alkali land, comprising the steps of:

[0034] S1: plow the saline-alkali land successively, the number of times is 4 times, and the plowing depth is 35cm; then, the number of times is 2 times, and the interval between each time of drying is 10 days;

[0035] S2: Level the saline-alkali land after S1 treatment, and level the ground with high excavation and low filling, with a maximum slope of 11°;

[0036] S3: The saline-alkali land treated by S2 is drained of brine with a buried pipe. The buried depth of the buried salt pipe is 1.4m, and the slope ratio is 0.8‰. 30m; the salt discharge concealed pipe is a single-wall corrugated pipe with a hole in diameter of 11cm, and is covered with 15cm thick sand and gravel material;

[0037] S4: Irrigate the saline-alkali land after the treatment of S3, with a water depth of 4 cm, and last for 10 days;

[0038] S5: Apply a saline-alkali land improvement agent to the s...

Embodiment 3

[0040] The present embodiment provides a method for improving saline-alkali land, comprising the steps of:

[0041] S1: plow the saline-alkali land successively, the number of times is 5 times, and the plowing depth is 30cm; then, the number of times is 3 times, and the interval between each time is 9 days;

[0042] S2: Level the saline-alkali land after S1 treatment, and level the ground with high digging and low filling, with a maximum slope of 12°;

[0043] S3: The saline-alkali land treated by S2 is drained of brine with a buried pipe. The buried depth of the buried salt pipe is 1.5m, and the slope ratio is 0.9‰. There are several parallel pipes, and the distance between two adjacent pipes is is 40m; the salt discharge concealed pipe is a single-wall corrugated pipe with a hole in diameter of 11cm, and is covered with 15cm thick sand and gravel material;

[0044] S4: Irrigate the saline-alkali land after the treatment of S3, with a water depth of 5 cm, and last for 9 days...

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Abstract

The invention relates to a saline-alkali soil improving method. The method combines farming improvement, water conservation improvement and application of a saline-alkali soil amendment, wherein farming improvement comprises deep ploughing, upturned soil sunning and land levelling; water conservation improvement comprises underground salt drain pipe laying and irrigation. With adoption of the method, soil bulk density and soil salinity of the saline-alkali soil can be reduced, soil porosity and soil nutrients can be increased, so that salinization of the soil is effectively improved, and the problems of reduction of grain yield, reduction of vegetation cover area, deterioration of the ecological environment and the like caused by salinization of the soil are relieved; the method is high in pertinence and remarkable in effect, popularization and promotion of technologies are facilitated, and large-scale application can be realized.

Description

technical field [0001] The invention relates to the technical field of land improvement, in particular to a method for improving saline-alkali land. Background technique [0002] my country is a country seriously endangered by salinization, and there are about 27 million hm of saline-alkali land in the country 2 , of which 7.7 million hm 2 The above are distributed in farmland, accounting for about 7% of the cultivated land area. For arid areas, more than 1 / 3 of the soil belongs to the middle and low yield fields caused by salinization. Improving saline-alkali land and preventing secondary salinization, as well as maintaining and improving land production capacity are important contents for maintaining land production capacity and sustainable agricultural development in arid areas. Because soil salinization directly affects soil structure, water and air conduction, water and fertilizer supply capacity, and plant emergence and growth processes, scholars from all over the wo...

Claims

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Application Information

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IPC IPC(8): A01B79/02E02D3/00E02D3/10C05G3/04C05G3/80
CPCA01B79/02C05D3/02C05G3/80E02D3/00E02D3/10C05D5/00C05D9/00C05D9/02C05F3/00C05F5/006
Inventor 梁勇
Owner 梁勇
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