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

A method for detecting water-soluble potassium in saline-alkali soil

A technology for saline-alkali soil and water-soluble potassium, which is applied in measurement devices, color/spectral characteristic measurement, sampling, etc., can solve the problem of high test results, and achieve the effect of being suitable for promotion, good reproducibility and low reliability.

Inactive Publication Date: 2011-12-21
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
View PDF1 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When adopting routine analysis method [1] to analyze soluble potassium in soil, test result is on the high side (references, [1] Zhang Wanru, Yang Guangying, Tu Xingnan, Zhang Ping

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
  • A method for detecting water-soluble potassium in saline-alkali soil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment 1 The present invention provides a kind of method that detects water-soluble potassium in saline-alkali soil, and its steps and conditions are as follows: get 8 saline-alkali soil samples in Da'an County, Zhenlai County, Taipingchuan Town, Jilin Province respectively, wherein 1, 2 Taken from Daan County, 3, 4, 5 from Zhenlai County, 6, 7, 8 from Taipingchuan Town. The measured results are shown in Table 2.

[0013] 1 Experimental device and analytical instruments

[0014] Atomic absorption spectrophotometer, Australian product, model GBC-906; water bath heating oscillator.

[0015] 2 Treatment of saline-alkali soil samples:

[0016] 2.1 Weigh 50g of the air-dried saline-alkali soil sample that passed through a 2mm sieve, put it into a dry 500mL conical flask, add 250mL of distilled water, plug the conical flask into it, shake for 3min, and obtain the suspension of the saline-alkali soil sample ;

[0017] 2.2 Then filter or centrifuge the suspension of the...

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 detecting water-soluble potassium in saline-alkali soil, which includes preparation of soil leaching solution, treatment of leaching solution and atomic absorption spectrometry analysis. In the saline-alkali soil leachate of the present invention, after colloid coagulation and precipitation, the leachate becomes clear and transparent, the interference of colloid particles is avoided, the light absorption value is reduced, and the measured result is closer to the real value. The reproducibility of the measurement results of the method of the present invention is good. The total equivalent concentration of anions and cations, the anion concentration is the sum of the equivalent concentrations of CO32-, HCO3-, Cl-, and SO42-, and the equivalent concentration of cations is the sum of the equivalent concentrations of Ca2+, Mg2+, Na+, and K+ ions. Theoretically speaking, the anion equivalent concentration sum and the cation equivalent concentration sum should be close to the eight ions in the soil. The cation equivalent concentration sum measured by the method of the present invention is close to the anion concentration sum, and the result is closer to the real value. The method of the invention is simple and practical, has low cost and is suitable for popularization.

Description

technical field [0001] The invention relates to a method for detecting water-soluble potassium in saline-alkali soil. Background technique [0002] At present, more and more attention has been paid to the control of saline-alkali soil in our country. The basic composition analysis of saline-alkali soil is the basis of scientific research and directly affects the conclusion of scientific research. Among them, potassium is an essential nutrient element for plant growth. Therefore, the role of potassium in the study of saline-alkali soil management is particularly important. The analysis of soluble potassium in soil mainly uses detection steps such as water immersion, filtration, and instrumental analysis, but in actual analysis, due to the large difference in the composition of the soil, the analysis method directly affects the analysis results. Saline-alkali soil refers to soil that is both salinized and alkaline. my country is mainly distributed in the inland arid and semi-...

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
IPC IPC(8): G01N21/31G01N1/26
Inventor 张玉霞王国平王超英
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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