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Nutrient-supplying agent for improving high saline soil

A soil improvement and nutrition technology, applied in the direction of soil conditioning materials, organic fertilizers, fertilizer mixtures, etc., can solve the problems of restricted application, high cost, single performance, etc., and achieve the effect of curbing the migration of salt

Inactive Publication Date: 2007-10-17
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The currently used intervention materials are either high in cost or single in performance, which restricts their wide application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] In a 500-liter container, add 10 kg of polyethylene glycol and 150 kg of urea under stirring, then add 240 kg of attapulgite, soak for a day and night, then dry at low temperature, pulverize, and pack.

Embodiment 2

[0022] In a 500-liter container, add 10 kg of polyvinyl alcohol and 150 kg of urea under stirring, then add 240 kg of attapulgite, soak for a day and night, then dry at low temperature, crush, and pack.

Embodiment 3

[0024] In a 500-liter container, add 15 kg of polyethylene glycol, 5 kg of potassium sulfate and 120 kg of urea under stirring, then add 260 kg of attapulgite, soak for a day and night, then dry at low temperature, crush, and pack.

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Abstract

The invention discloses a nutrient-supplying agent for improving high saline soil comprising Attapulgite clay 50-80 wt%, polyethylene glycol or polyvinyl alcohol 2-5 wt%, fertilizer 18-45 wt%. The advantages of the invention include, appreciable change to the crumble structure of the loess soil, increased soil oxygen and hydraulic permeability, and slow release fertilizer action for the Attaplgite clay, which can be applied to ecological treatment.

Description

technical field [0001] The invention relates to a nutrient agent for improving high salinity soil. Background technique [0002] Due to the drought and water shortage in the western region, the ecological environment is very fragile, and vegetation construction is a difficult point in the construction of the ecological environment. The degraded and destroyed ecological environment is difficult to manage and restore in the natural state, and human intervention is necessary. Among human interventions, in addition to conventional biological, agronomic, and engineering measures, new materials with improved soil and slow-release fertilizers are very important intervention methods for the western regions with drought, water shortage, poor soil, and severe salinization. [0003] At present, the state has invested a lot in desertification control and ecological environment restoration and construction in the west, and invested a lot of manpower, material resources and financial res...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K17/40
Inventor 王爱勤张琨杨立明宗莉
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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