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Ecologic conditioner for salt-affected soil by sea and preparation method and application of ecologic conditioner

A technology of improver and salinization, applied in the field of soil ecological improver, can solve the problems of large difference in application effect, lack of structure and biological activity of coastal saline soil, and achieve the promotion of establishment and maintenance, mitigation of heavy metal pollution, and improvement of The effect of fertilizer use efficiency

Inactive Publication Date: 2012-06-20
INST OF AGRO FOOD SCI & TECH SHANDONG ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, there are many kinds of soil salinity improvers at home and abroad, and the properties, composition, mechanism of action of different improvers and the application effects on different soil types are quite different.
In particular, there is a lack of special modifiers developed for the actual conditions in the Yellow River Delta region and the characteristics of poor coastal saline soil structure and biological activity.

Method used

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  • Ecologic conditioner for salt-affected soil by sea and preparation method and application of ecologic conditioner
  • Ecologic conditioner for salt-affected soil by sea and preparation method and application of ecologic conditioner
  • Ecologic conditioner for salt-affected soil by sea and preparation method and application of ecologic conditioner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] A coastal saline soil ecological improver is characterized in that it comprises the following components, all in parts by weight:

[0050] 30 parts of exogenous beneficial microbial bacterial agent, 20 parts of soil beneficial microbial bacterial agent, and 10 parts of humic acid.

[0051] Above-mentioned coastal saline soil ecological improver is prepared as follows:

[0052] (1) Preparation of exogenous beneficial microbial bacterial agent:

[0053] Activation of strains

[0054] Take Trichoderma sp. T-304-1071 with strain preservation number CGMCC No.5394, inoculate it in PDA medium and culture it at 26°C for 5 days to obtain activated Trichoderma sp. T-304-1071;

[0055] PDA medium: 200g potato, 20g glucose, 15g agar powder, 1000ml water.

[0056] seed culture

[0057] The activated Trichoderma sp. (Trichoderma sp.) T-304-1071 spores were diluted with sterile water and inserted into a 250ml Erlenmeyer flask with 50ml PD medium, 26°C, 180r / m, shaking culture for ...

Embodiment 2

[0093] A coastal saline soil ecological improver is characterized in that it comprises the following components, all in parts by weight:

[0094] 30 parts of exogenous beneficial microbial bacterial agent, 20 parts of soil-dwelling beneficial microbial bacterial agent, 10 parts of humic acid, and 40 parts of crushed cotton straw. Cotton stalks are 3-5 cm long.

[0095] The preparation method of coastal saline soil ecological improver is as described in Example 1, the difference is that

[0096] The exogenous beneficial microbial agent is Trichoderma spores with a content of 7.3×10 8 cfu / g of exogenous beneficial microorganisms;

[0097] Beneficial microbial agent of soil dwelling is Aspergillus spore content 1.6×10 8 cfu / g of soil-dwelling beneficial microorganisms;

[0098] The coastal salinized soil ecological improver is obtained by mixing the exogenous beneficial microbial bacterial agent, soil-dwelling beneficial microbial bacterial agent, humic acid and crushed cotton ...

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Abstract

The invention relates to ecologic conditioner for salt-affected soil by the sea, and a preparation method and application of the ecologic conditioner. The ecologic conditioner comprises the following components by part by weight: 25 to 30 parts of exogenous beneficial microbial agent, 20 to 25 parts of soil beneficial microbial agent, and 5 to 10 parts of humic acid. The invention further provides the application of the ecologic conditioner in conditioning the salt-affected soil ecology by the sea. The ecologic conditioner can promote the formation of soil water-stable aggregates and improve soil texture, thereby promoting the building and the maintaining of soil beneficial microbiological communities; meanwhile, the ecologic conditioner can promote the uptake of nitrogen, phosphorus, potassium and microelements of crops, improve the utilization ratio of fertilizers, and buffer the manurial effect.

Description

technical field [0001] The invention relates to an ecological improver for coastal saline soil, a preparation method and application thereof, and belongs to the technical field of soil ecological improver. Background technique [0002] The Yellow River Delta is a new land formed by the Yellow River land-building movement in the past century. The groundwater is shallow and highly mineralized, and the underground salt is easy to rise to the surface, resulting in soil salinization and widespread saline-alkaline wasteland. The area of ​​salinized land in this area reaches 442,900 hm 2 , accounting for more than half of the total area of ​​the whole region, among which, 236,300 hm of heavily salinized soil and saline-alkali bare ground 2 , accounting for about 28.4% of the land area in the area, the saline soil is mainly coastal saline soil, the salinity is mainly chloride, the salinity of the soil surface varies from 0.4% to 3%, the soil structure is poor, and the fertility is ...

Claims

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Application Information

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IPC IPC(8): C09K17/00C12N1/14C09K109/00C12R1/685C12R1/885
Inventor 陈建爱杜方岭陈为京杨武汉
Owner INST OF AGRO FOOD SCI & TECH SHANDONG ACAD OF AGRI SCI
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