Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for improving saline and alkaline land through ardealite, TMPU and EDTA

A technology of tetramethylene pentaurea and saline-alkali land is applied in the field of saline-alkali land treatment, which can solve the problems of inability to obtain large-scale promotion, poor treatment effect, complicated production process, etc., and achieves increased water permeability, accelerated salt washing speed, and low solubility. Effect

Inactive Publication Date: 2015-12-16
GUIZHOU KAILIN GRP CO LTD +1
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many soil amendments for chemical treatment of soil salinization, such as gypsum, calcium sulfate, superphosphate, industrial waste phosphogypsum, industrial waste acid, organic fertilizer, humic acid, fly ash, peat, fermented vinegar These have achieved certain effects on improving saline-alkali land. More commonly used are organic fertilizers and gypsum, of which gypsum is made of Ca 2+ Substitution of Na + And use acid to neutralize alkali to improve saline-alkali land; but limited by complex production process, poor treatment effect and other conditions, it cannot be popularized in a large area

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for improving saline and alkaline land through ardealite, TMPU and EDTA
  • Method for improving saline and alkaline land through ardealite, TMPU and EDTA
  • Method for improving saline and alkaline land through ardealite, TMPU and EDTA

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 1. Raw material preparation

[0032] Phosphogypsum,

[0033] calcium humate,

[0034] Tetramethylene pentaurea, its structural formula is,

[0035]

[0036] oxalic acid,

[0037] hydroxymethyl cellulose,

[0038] EDTA,

[0039] 2. A method for improving saline-alkali land with phosphogypsum+tetramethylene pentaurea+EDTA, comprising the following steps:

[0040] (1) Sprinkle phosphogypsum and calcium humate evenly on the surface of saline-alkali land, and plough 20cm deep, so that phosphogypsum and soil layer are mixed evenly, and keep for 10 days;

[0041] (2) Mix tetramethylene pentaurea, oxalic acid, and hydroxymethyl cellulose in a ratio of 40:1:1, then evenly spread it on the surface of the saline-alkali land, and plough 20cm deep to make the slow-release binder and the soil layer Mix evenly, spray with water to make the 20cm deep saline-alkali soil moist, keep it for 5 to 10 days;

[0042] (3) Evenly sprinkle EDTA on the surface of the saline-alkali land,...

Embodiment 2

[0048] 1. Raw material preparation

[0049] Phosphogypsum,

[0050] calcium humate,

[0051]Tetramethylene pentaurea, its structural formula is,

[0052]

[0053] oxalic acid,

[0054] hydroxymethyl cellulose,

[0055] EDTA,

[0056] 2. A method for improving saline-alkali land with phosphogypsum+tetramethylene pentaurea+EDTA, comprising the following steps:

[0057] (1) Sprinkle phosphogypsum and calcium humate evenly on the surface of saline-alkali land, and plough 20 cm deep, so that phosphogypsum and soil layer are mixed evenly, and keep for 30 days;

[0058] (2) Mix tetramethylene pentaurea, oxalic acid, and hydroxymethyl cellulose in a ratio of 40:5:1, then evenly spread it on the surface of the saline-alkali land, and plough 20cm deep to make the slow-release binder and the soil layer Mix evenly, spray with water to make the 20cm deep saline-alkali soil moist, keep it for 5 to 10 days;

[0059] (3) Evenly sprinkle EDTA on the surface of the saline-alkali land,...

Embodiment 3

[0065] 1. Raw material preparation

[0066] Phosphogypsum,

[0067] calcium humate,

[0068] Tetramethylene pentaurea, its structural formula is,

[0069]

[0070] oxalic acid,

[0071] hydroxymethyl cellulose,

[0072] EDTA,

[0073] 2. A method for improving saline-alkali land with phosphogypsum+tetramethylene pentaurea+EDTA, comprising the following steps:

[0074] (1) Sprinkle phosphogypsum and calcium humate evenly on the surface of saline-alkali land, and plough 20cm deep, so that phosphogypsum and soil layer are mixed evenly, and keep for 20 days;

[0075] (2) Mix tetramethylene pentaurea, oxalic acid, and hydroxymethyl cellulose in a ratio of 40:3:3, then evenly spread it on the surface of the saline-alkali land, and plough 20cm deep to make the slow-release binder and the soil layer Mix evenly, spray with water to make the 20cm deep saline-alkali soil moist, keep it for 5 to 10 days;

[0076] (3) Evenly sprinkle EDTA on the surface of saline-alkali land, and...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a method for improving saline and alkaline land through ardealite, TMPU and EDTA. The method includes the steps that first, the land is treated with ardealite and fulvic acid calcium; then, the land is treated with a mixture of TMPU, oxalic acid and hydroxymethyl cellulose; finally, the land is treated with EDTA. By the adoption of the method for improving the saline and alkaline land, saline and alkaline soil can be rapidly improved to be suitable for crop growth; besides, an improver is wide in application range and suitable for soil improvement on soil salinization and alkalinization caused by different reasons in different areas and can improve the soil structure, lower soil alkalinity, increase the soil salt rejection ratio, improve soil fertility, promote crop growth and improve agricultural economy when reasonably applied into soil.

Description

technical field [0001] The invention relates to the technical field of saline-alkali land treatment, in particular to a method for improving saline-alkali land by using phosphogypsum + tetramethylene pentaurea + EDTA. Background technique [0002] Saline-alkali land is a general term for saline soil and alkaline soil, as well as various salinized and alkalized soils. Saline soil refers to the soil with a certain level of soluble salt content, which can cause obvious harm to the growth and development of plants. Alkaline soils refer to soils that contain a large amount of exchangeable ions to the extent that they can harm plant growth and development and change soil properties. In actual conditions, saline soil and alkaline soil often coexist in a mixed manner, collectively referred to as saline-alkali soil. [0003] Saline-alkali land is an important land resource, and it is a widely distributed soil type on the earth. The area of ​​saline soil in the world is about 1 bil...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02C09K17/40C09K109/00
Inventor 陈彬廖吉星蒋俊蕊石秀明郑超朱飞武
Owner GUIZHOU KAILIN GRP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com