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Sandy soil fertility improving soil-improving material, preparation method and application

A soil and sandy technology, applied in the direction of soil conditioning materials, applications, organic fertilizers, etc., can solve the problems of phosphorus passivation, short-term effect, and large labor cost, and achieve the effect of increasing the adsorption capacity and preventing the loss of nutrients

Inactive Publication Date: 2018-11-20
HUIZHOU SIJIXIAN GREEN FOOD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the method of fertilizing a small amount and multiple times and topdressing frequently in the later stage is adopted, not only the fertilizer utilization rate is low, but the fertilization labor is high, and because the surface temperature of the sandy soil is high, the nitrogen in the fertilizer will be volatilized and lost, and the phosphorus will be passivated.
In addition, although the application of farmyard manure can increase soil organic colloids, due to the good ventilation performance of sandy soil, the vigorous activity of aerobic microorganisms and the rapid decomposition of organic matter, the effect is often not long-lasting
The conventional soil-to-sand conversion method is labor-intensive, and over a long period of time, a pattern of layered distribution of sand and clay will appear

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A sandy soil fertilization and soil improvement material, mainly made of the following components: mixed firing material, one or two of nitro humic acid and traditional Chinese medicine residue powder, carboxymethyl starch and crushed shrimp shells One or two kinds; the mixed firing material is mainly made of powdered clay and hay and wood mixed and fired.

[0024] In this embodiment, the weight ratio of the powdered clay to the hay wood is 1:5-10.

[0025] Further, the particle size of the powdery clay is less than or equal to 5mm.

[0026] Furthermore, the powdery clay is made of 2:1 clay minerals, such as montmorillonite powder, bentonite, illite powder, attapulgite powder, which can be a kind of clay mineral or mixed with multiple clay minerals. Food bleaching clay waste can also be used.

[0027] In this embodiment, the weight ratio of the mixed calcined material to one or both of the nitrohumic acid and traditional Chinese medicine dregs powder is 1:0.02-0.1.

...

Embodiment 2

[0032] The preparation method of sandy soil fertilization and improving soil material described in embodiment 1 may further comprise the steps:

[0033] S1, firing after mixing the powdery clay and hay wood, and cooling the mixed firing material obtained by firing to normal temperature;

[0034] S2. Add one or two of nitrohumic acid and traditional Chinese medicine slag powder to the mixed firing material obtained in step S1, and one or two of carboxymethyl starch and crushed shrimp shells, and then mix evenly , to obtain sandy soil fertilization and soil improvement materials.

[0035] Further, in step S1, the mixed firing method of powdery clay and dry grass is as follows: after lighting the dry grass, cover it with powdery clay and spray water so that no open flame is generated during the firing process.

Embodiment 3

[0037] Utilize the described sandy soil fertilization and soil improvement material described in embodiment 1 to carry out the method for sandy soil fertilizer improvement soil: the sandy soil fertilizer improvement soil material is mixed with an equal amount of sandy soil, and then press 200kg per mu The dosage of -500kg is spread to the sandy soil surface. The specific application amount is determined according to the sand content of the soil. The higher the sand content, the greater the application amount.

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Abstract

The invention discloses a sandy soil fertility improving soil-improving material, a preparation method and application. The sandy soil fertility improving soil-improving material is prepared from thefollowing main components: one or two of a mixed fired material, nitrohumic acid and traditional Chinese medicinal residue powder, and one or two of carboxymethyl starch and a pulverized shrimp shellmaterial, wherein the mixed fired material is obtained mainly by firing powdered clay and dry grass and wood material in a mixed manner. After soil is improved by the sandy soil fertility improving soil-improving material, the fertility retaining ability of the soil is effectively improved, the fertilization times is effectively reduced, the anion or cation adsorbing capacity of sandy soil is improved, and prevention of loss of nutrients is facilitated.

Description

technical field [0001] The invention relates to the technical field of soil improvement and fertilization, in particular to a material for fertilizing and improving sandy soil, a preparation method and an application thereof. Background technique [0002] The sand content of sandy soil (0.05 ~ 2mm in particle size) is above 60% (China Soil Texture Classification System). Due to the characteristics of low water content, small heat capacity, large temperature difference between day and night, and rapid soil temperature changes, sandy soil has problems such as weak water storage capacity, poor drought resistance, and low nutrient content. Organic colloid, poor fat retention. Therefore, the water and nutrients in the sandy soil are easily lost, which is not good for the growth of vegetable crops. [0003] Improving the fertilizer and water retention capacity of sandy soil is the key measure to improve soil. If a small amount of fertilization is used repeatedly and the method ...

Claims

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Application Information

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IPC IPC(8): C09K17/40C05G3/00C05G3/04C09K101/00C05G3/80
CPCC05D9/00C05G3/00C05G3/80C09K17/40C09K2101/00C05F1/005C05F11/00C05F11/02
Inventor 蔡国富蔡国豪李祖京周李珠
Owner HUIZHOU SIJIXIAN GREEN FOOD
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