Method for improving saline-alkali land by using pioneer plants

A technology of pioneer plants and saline-alkali land, which is applied in the field of improving saline-alkali land by using pioneer plants, can solve the problems of low utilization rate and economic value, poor water and fertilizer retention capacity, and inability of plants to grow, so as to increase soil water permeability, reduce electrical conductivity, The effect of alkalization reduction

Inactive Publication Date: 2019-03-19
北京碧青园生态环境科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the continuous development of the economy, the contradiction of energy shortage in my country is very acute, and the development of biomass energy must ensure the premise of "food security"; the development and utilization of coastal tidal flat saline-alkali land can provide food sources and become the production carrier of important economic plants such as energy; but , Due to the high salt content and poor water and fertilizer retention capacity

Method used

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  • Method for improving saline-alkali land by using pioneer plants
  • Method for improving saline-alkali land by using pioneer plants
  • Method for improving saline-alkali land by using pioneer plants

Examples

Experimental program
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Effect test

Example Embodiment

[0043] Example 1

[0044] In the improved soil described in S2, the content of each component of the modifier is: 44 parts of phosphogypsum, 23.4 parts of boric acid, 14.1 parts of slow-release binder, 8 parts of humic acid, 5.7 parts of CMC, and 5.6 parts of zeolite powder.

[0045] In S3, the ground of the improved soil is raised into a mound shape, and then a ridge of 20-40 cm is raised, and the slope of the ridge is in the range of 15-45 degrees.

[0046] After the saline-alkali land is improved by the above method, the total nitrogen content of the saline-alkali land is 0.29g / kg; the total phosphorus content is 20.96μg / g; the total potassium content is 96.26μg / g; the pH is reduced to 8.1; and the electrical conductivity is reduced to 8.9dS / m ; The alkalinity is reduced to 20.8%.

Example Embodiment

[0047] Example 2

[0048] In the improved soil described in S2, the content of each component of the modifier is: 46 parts of phosphogypsum, 24.6 parts of boric acid, 12.3 parts of slow-release binder, 12.6 parts of humic acid, 5 parts of CMC, and 4.2 parts of zeolite powder.

[0049] In S3, the ground of the improved soil is raised into a mound shape, and then a ridge of 20-40 cm is raised, and the slope of the ridge is in the range of 15-45 degrees.

[0050]After the saline-alkali land is improved by the above method, the total nitrogen content of the saline-alkali land is 0.30 g / kg; the total phosphorus content is 22.18 μg / g; the total potassium content is 97.45 μg / g; the pH is reduced to 7.9; the electrical conductivity is reduced to 8.6dS / m ; The alkalinity is reduced to 20.2%.

Example Embodiment

[0051] Example 3

[0052] In the improved soil described in S2, the content of each component of the modifier is: 45 parts of phosphogypsum, 23.8 parts of boric acid, 13.4 parts of slow-release binder, 13.1 parts of humic acid, 6.3 parts of CMC, and 5 parts of zeolite powder.

[0053] In S3, the ground of the improved soil is raised into a mound shape, and then a ridge of 20-40 cm is raised, and the slope of the ridge is in the range of 15-45 degrees.

[0054] After the saline-alkali land is improved by the above method, the total nitrogen content of the saline-alkali land is 0.32 g / kg; the total phosphorus content is 22.54 μg / g; the total potassium content is 98.16 μg / g; the pH is reduced to 7.8; the electrical conductivity is reduced to 8.3dS / m ; The alkalinity is reduced to 19.6%.

[0055] The execution process of the other embodiments will not be repeated; the data of other parts not shown in each embodiment are shown in Table 1;

[0056] Table 1 Data of each embodiment ...

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Abstract

The invention is applicable to the technical field of saline-alkali land improvement, and provides a method for improving the saline-alkali land by using pioneer plants. The method comprises the stepsof mixing modifiers phosphogypsum and boric acid and then scattering the mixture on the saline-alkali land subjected to tillage for even mixing to obtain primary treated soil; adding the modifiers slow release binder, humic acid, CMC (sodium carboxymethylcellulose) and zeolite powder to the primary treated soil and mixing evenly to obtain improved soil, wherein the modifier in the improved soil comprises 40-50 parts of phosphogypsum, 20-26 parts of boric acid, 10-15 parts of slow-release binder, 8-15 parts of humic acid, 2-8 parts of CMC and 1-6 parts of zeolite powder; raising the ground ofthe improved soil into a mound-like shape, ridging and building a fish scale pit on a ridge; planting the pioneer plants into the fish scale pit. Therefore, the method can increase the content of nitrogen, phosphorus and potassium in the saline-alkali soil, and reduce the pH, the conductivity and the alkalinity of the saline-alkali soil.

Description

technical field [0001] The invention relates to the technical field of saline-alkali land improvement, in particular to a method for improving saline-alkali land by using pioneer plants. Background technique [0002] With the continuous development of the economy, the contradiction of energy shortage in my country is very acute, and the development of biomass energy must ensure the premise of "food security"; the development and utilization of coastal tidal flat saline-alkali land can provide food sources and become the production carrier of important economic plants such as energy; but , Due to the high salt content and poor water and fertilizer retention capacity of saline-alkali land, most plants cannot grow, especially in saline-alkali land, the utilization rate and economic value are relatively low. [0003] Pioneer plants have extremely tenacious vitality and can grow under harsh conditions such as insufficient soil nutrients. For saline-alkali land, their vitality is s...

Claims

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Application Information

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IPC IPC(8): A01B79/02
CPCA01B79/02
Inventor 何华娟薛祥华
Owner 北京碧青园生态环境科技有限公司
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