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Improved moisture soil preparation method

A technology of fluvo-aquic soil and mixed soil, which is applied in the direction of soil lifting machinery, application, agriculture, etc., can solve the problem of less application, and achieve the effect of increasing the aggregate content, convenient operation, and enhancing the plastic and liquid limit.

Inactive Publication Date: 2015-04-01
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In current research, diatomaceous earth is widely used in treatment agents, filter aids, fillers, adsorbents, heat insulation materials, catalysts, etc., but its application in soil improvement is still seldom

Method used

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Examples

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Embodiment Construction

[0026] In this example, the improvement of fluvo-aquic soil in Shanghai Chongming Island by diatomaceous earth powder is taken as an example to illustrate the preparation method of the improved fluvi-aquic soil.

[0027] The fluvo-aquic soil of Chongming Island used in this example has a sand particle and coarse silt content of more than 30% in its components, poor viscosity, heavy sand in the soil, easy compaction, poor water and fertilizer retention, and easy to leak water and fertilizer; The properties of fluvo-aquic soil are: the maximum dry density is 1.62g / cm 3 , the plastic limit moisture content is 20.56%, the liquid limit moisture content rate is 42.34%, and the plasticity index is 21.78.

[0028] figure 1 It is a flow chart of the preparation method of the improved fluvo-aquic soil in this embodiment.

[0029] Such as figure 1 Shown, the preparation method of improved fluvo-aquic soil comprises the following steps:

[0030] Step 1. Air-dry, crush and sieve the fl...

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Abstract

The invention provides an improved moisture soil preparation method. Diatomite powder and moisture soil are combined according to predetermined volume to form a mixture, and then maintenance is performed for 7 days under the condition that the moisture rate of mixed soil ranges from 30% to 35% to form improved soil. According to the improved moisture soil preparation method, the diatomite powder and the moisture soil are mixed according to certain proportion to prepare the improved moisture soil, and the porosity and moisture and fertility preserving capacity of the soil are remarkably improved. In addition, the diatomite powder is not easily corroded and thawed, the effect of the soil can permanently exist, and the soil productivity is improved permanently. In addition, the diatomite powder contains trace elements, plant growing can be promoted, and the improved moisture soil prepared by adopting the diatomite powder has wide prospect on the aspect of agricultural planting.

Description

technical field [0001] The invention belongs to the field of soil improvement, and in particular relates to a preparation method of improved fluvo-aquic soil. Background technique [0002] The area of ​​fluvo-aquic soil in my country is 384.88 million hectares, accounting for about 15.9% of the country's arable land area. The fluvi-aquic soil area has flat terrain, thick soil layers, and good production properties, which are suitable for planting a variety of crops. However, the fluvo-aquic soil developed with clayey sediments has a heavy texture, poor permeability and tillability, stagnant water in the upper layer when it is wet, and cracks and escapes moisture when it is dry. The suitable cultivation period is short. Although the nutrient content is high, the physical properties are poor. Production potential is difficult to realize. [0003] At present, there are many ways to improve fluvi-aquic soil. Most of them use artificial fertilizers to improve the fertility of fl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B77/00
Inventor 璩继立赵冬雪孙中明唐瑞东李贝贝魏天乐江海洋刘佳
Owner UNIV OF SHANGHAI FOR SCI & TECH
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