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A kind of ph-sensitive agricultural fungicide

A technology for using bacterial agents and agriculture, which is applied in the field of pH-sensitive agricultural bacterial agents, which can solve problems such as unfavorable crop growth, reduced fertilizer use efficiency, and fertilizer loss, so as to improve nutrient supply, improve soil salinization, The effect of inhibiting activity

Active Publication Date: 2021-02-05
长沙昱旻信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Salinized soil is not conducive to the growth of crops, and a large number of hydrogen ions in acidic soil lead to the loss of some fertilizers, which greatly reduces the utilization efficiency of fertilizers
For the solution to the above problems, there is no effective means to propose

Method used

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  • A kind of ph-sensitive agricultural fungicide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Embodiment 1, the preparation of pH-sensitive agricultural bacterial agent

[0046] (1) Preparation of agricultural fungicide granules

[0047] Add Bacillus subtilis, yeast, lactic acid bacteria, starch, and water with a mass ratio of 2:2:2:2:1 to a high-speed stirring granulator to granulate, boil and dry at 30-37°C to a water content of 3-5%, and pass 20 Mesh sieve to obtain agricultural fungus granules.

[0048] (2) Dopamine is coated on the surface of agricultural fungus granules

[0049] Weigh 1.5g Tris and place it in a beaker, add about 900mL of deionized water, adjust the pH of the Tris-HCl solution to 8-8.5 with 6M HCl; add 50g of the above-prepared agricultural fungus granules to the above-mentioned Tris-HCl solution, and dilute the solution to 1 L; add 5 g of dopamine hydrochloride, stir at room temperature for more than 2 hours, and suction filter to obtain agricultural fungicide particles coated with dopamine on the surface.

[0050] (3) pH-sensitive pol...

Embodiment 2

[0053] Embodiment 2, the living bacteria release experiment of pH-sensitive agricultural bacterial agent

[0054] Get 6g of pH-sensitive agricultural fungal agent granules prepared according to the method described in Example 1, divide them into 3 parts on average, place them in sterile water with a pH value of 5, 7, and 9 for 1 day, and then detect different pH values. In some cases, the release amount of live bacteria of the pH-sensitive bacterial agent.

[0055] Plate detection method to detect the release of viable bacteria detection method:

[0056] 1) Prepare a solution according to the mass volume ratio of the placed sample: sterile water at a ratio of 1:10, and filter the solution through a 3-micron filter membrane to filter out the dopamine attached to the surface of the unreleased live bacteria Bacteria particles and bacteria particles coated with polymer molecules;

[0057] 2) Collect the filtrate, add glass beads, let it stand for 20 minutes, and shake it on a ro...

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Abstract

The invention provides a pH-sensitive agricultural bacterial agent. The bacterial agent includes microorganisms, binders, dopamine or its salt, and pH-sensitive polymer molecules; the pH-sensitive polymer molecules are polymerized from acrylic acid with graphene oxide as a crosslinking polymer molecules. In the present invention, dopamine is attached to the surface of the live bacteria granulation agent, and then coated with pH-sensitive polymer molecules on the surface of dopamine, thereby preparing a live bacteria release that can be adjusted according to the pH value of the environment. A certain amount of pH-sensitive agricultural fungicide, in saline-alkali soil, using the pH-sensitive agricultural fungicide provided by the present invention can release live bacteria therein quickly, thereby accelerating the improvement of soil salinization problem; and in acidification Applying the pH-sensitive agricultural fungus agent provided by the invention to the soil can effectively slow down the release rate of live bacteria, prevent the loss of organic fertilizers produced by fermentation and decomposition of live bacteria in acidic soil, and improve the utilization efficiency of fertilizers.

Description

technical field [0001] The invention belongs to the technical field of fertilizer development, and in particular relates to a pH-sensitive agricultural bacterial agent. Background technique [0002] Generally, the climate varies greatly across my country. With the large-scale development of sustainable modern agriculture, the excessive use of fertilizers and human activities have caused more and more serious problems in terms of soil acidity and alkalinity. The physical and chemical properties of soil have a significant impact on the growth environment of plants and the utilization efficiency of fertilizer itself. Salinized soil is not conducive to the growth of crops, and a large number of hydrogen ions in acidic soil lead to the loss of some fertilizers, which greatly reduces the utilization efficiency of fertilizers. For the solution of above-mentioned problem, also do not have an effective means to propose at present. Contents of the invention [0003] The invention ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K17/14C09K17/16C12N1/20C12N1/16C12R1/125C12R1/01C12R1/645C09K101/00C09K109/00
CPCC09K17/14C09K17/16C09K2101/00C09K2109/00C12N1/16C12N1/20
Inventor 温岚
Owner 长沙昱旻信息科技有限公司
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