Mycorrhizal fungi microcapsule seed coating agent capable of improving saline-alkali soil microbial flora structure as well as preparation method of mycorrhizal fungi microcapsule seed coating agent

A technology for soil microorganisms and community structure, which is applied to the field of mycorrhizal microcapsule seed coating for improving the microbial community structure of saline-alkali soil and its preparation field, can solve the problems of difficulty in improving saline-alkali land, poor fertilizer utilization rate, imbalance of microbial flora and the like, Achieving good sustained release effect, high inoculation success rate and high encapsulation rate

Inactive Publication Date: 2020-02-04
BIOTECH RES CENT SHANDONG ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the current problems of difficult improvement of saline-alkali land, unbalanced microbial flora, poor fertilizer utilization rate, etc., the present invention provides a dry mycorrhizal powder seed coating agent for improving the soil microbial community structure in saline-alkali land

Method used

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  • Mycorrhizal fungi microcapsule seed coating agent capable of improving saline-alkali soil microbial flora structure as well as preparation method of mycorrhizal fungi microcapsule seed coating agent
  • Mycorrhizal fungi microcapsule seed coating agent capable of improving saline-alkali soil microbial flora structure as well as preparation method of mycorrhizal fungi microcapsule seed coating agent
  • Mycorrhizal fungi microcapsule seed coating agent capable of improving saline-alkali soil microbial flora structure as well as preparation method of mycorrhizal fungi microcapsule seed coating agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A mycorrhizal fungus microcapsule seed coating agent for improving the soil microbial community structure in saline-alkali land, the formula is: 1 part of mycorrhizal fungus preparation, 0.1 part of Trichoderma harzianum preparation, 3 g of xanthan gum, 1.2 g of calcium carbonate, citric acid aqueous solution 0.1g, ethyl lactate 0.2g, polylactic acid (weight: 2000) 80mg.

[0025] The preparation method is as follows:

[0026] (1) First, dissolve polylactic acid in 80mL of ethyl acetate to obtain a polylactic acid-ethyl acetate mixture. After stirring at 7000r / min for 2min, add the mycorrhizal fungus preparation and Trichoderma harzianum preparation to the mixture After stirring at 7000r / min for 2min, the primary emulsion was formed;

[0027] (2) Then add xanthan gum, calcium carbonate, citric acid aqueous solution and ethyl lactate to the primary emulsion, stir at 35-40°C for 24 hours to obtain a composite emulsion, and then add a sodium chloride aqueous solution with ...

Embodiment 2

[0030] A mycorrhizal fungus microcapsule seed coating agent for improving the soil microbial community structure in saline-alkali land, the formula is: 1.2 parts of mycorrhizal fungus preparation, 0.2 part of Trichoderma harzianum preparation, 4 g of xanthan gum, 1.2 g of calcium carbonate, and citric acid aqueous solution 0.2g, ethyl lactate 0.3g, polylactic acid (weight: 3000) 100mg.

[0031] The preparation method is the same as in Example 1.

Embodiment 3

[0033] A mycorrhizal fungus microcapsule seed coating agent for improving soil microbial community structure in saline-alkali land, the formula is: 1.5 parts of mycorrhizal fungus preparation, 0.2 part of Trichoderma harzianum preparation, 5 g of xanthan gum, 1.0 g of calcium carbonate, and citric acid aqueous solution 0.2g, ethyl lactate 0.3g, polylactic acid (weight: 2500) 90mg.

[0034] The preparation method is the same as in Example 1.

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Abstract

The invention belongs to the technical field of fungal fertilizer and particularly relates to a mycorrhizal fungi microcapsule seed coating agent capable of improving a saline-alkali soil microbial flora structure as well as a preparation method of the mycorrhizal fungi microcapsule seed coating agent. The seed coating agent particularly comprises the following components: 1 to 1.5 parts of arbuscular mycorrhizal fungi preparation, 0.1 to 0.2 part of trichoderma harzianum preparation, 3 to 5 g of xanthan gum, 1 to 1.2 g of calcium carbonate, 0.1 to 0.2 g of citric acid aqueous solution, 0.2 to0.3 g of ethyl lactate and 80 to 100 mg of polylactic acid. The microcapsule is prepared by a mode of forming compound emulsion by the polylactic acid and the xanthan gum; the prepared seed coating agent has high film-forming property and high embedding rate; the formed capsule wall has high stability, can effectively protect the activity of the fungi, can directly coat the seed and has good slow-release effect; through mutual synergistic effect of the arbuscular mycorrhizal fungi and the trichoderma harzianum, the inoculation success rate is high; and after inoculation, the yield of crops isobviously increased and the morbidity probability of the crops is reduced.

Description

technical field [0001] The invention belongs to the technical field of bacterial fertilizer, and in particular relates to a mycorrhizal fungus microcapsule seed coating agent for improving the soil microbial community structure in saline-alkali land and a preparation method thereof. Background technique [0002] Mycorrhizae are a common plant symbiosis phenomenon in nature, especially a symbiosis formed between mycorrhizal fungi in soil and the roots of higher plants. Aggregating mycorrhizal fungi (AMF) are a class of heterotrophic microorganisms widely distributed in agricultural ecosystems, accounting for 5-50% of the biomass of microbial systems in soil. Assemblage mycorrhizal fungi can form symbionts with 80% of the plants on land. They are a very important type of functional microorganisms in the soil, and have an important impact on the growth and development of plants and the structure and function of plant communities. Moreover, the formation of plant mycorrhizae ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40A01N63/30A01N63/38A01P3/00A01C1/06C09K101/00C09K109/00
CPCC09K17/40A01C1/06C09K2101/00C09K2109/00
Inventor 唐朝辉万书波郭峰刘苹崔利张佳蕾李新国王建国杨莎耿耘孟静静李庆凯
Owner BIOTECH RES CENT SHANDONG ACADEMY OF AGRI SCI
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