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Microbial agent suitable for planting of corn in saline-alkali soil and preparation method of microbial agent

A technology of microbial agent and saline-alkali soil, applied in the direction of microorganism-based methods, biochemical equipment and methods, microorganisms, etc., can solve the problems of low corn survival rate, non-saline-alkaline tolerance, and poor harvest, and improve the germination rate , Promote the growth of corn and meet the nutritional needs

Active Publication Date: 2019-07-09
MAIZE RES INST SHANDONG ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, almost all corn varieties are not resistant to salt and alkali, and the survival rate of corn in saline-alkali soil is low, and the harvest is not good. At present, it is still difficult to plant maize in saline-alkali soil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A preparation method of a microbial inoculant suitable for planting corn in saline-alkali soil, the specific steps are as follows:

[0035] (1) Preparation of composite bacterial powder: firstly inoculate, ferment, flocculate, Press filtration, drying and crushing to obtain the corresponding bacterial powder, and then mix the obtained bacterial powder at a mass ratio of 1:0.5:0.3:1:0.8:1.5 to obtain a composite bacterial powder for later use;

[0036] (2) Next, mix corn stalk powder, mushroom dregs, cotton meal, and water at a mass ratio of 1:0.3:0.5:5, heat and pressurize, and naturally cool to room temperature (25°C) to obtain a premix; then Stir and mix the composite bacterial powder obtained in step (1) with the premixed material at a mass ratio of 1:80, and perform anaerobic fermentation to obtain a fermented material for subsequent use;

[0037](3) In addition, polyaspartic acid and 10% polyvinyl alcohol aqueous solution with a mass concentration of 10% were stir...

Embodiment 2

[0052] A preparation method of a microbial inoculant suitable for planting corn in saline-alkali soil, the specific steps are as follows:

[0053] (1) Preparation of composite bacterial powder: firstly inoculate, ferment, flocculate, Press filtration, drying and crushing to obtain the corresponding bacterial powder, and then mix the obtained bacterial powder at a mass ratio of 1:0.8:0.5:1.2:1:2 to obtain a composite bacterial powder for later use;

[0054] (2) Next, mix corn stalk powder, mushroom dregs, cottonseed meal, and water at a mass ratio of 1:0.5:0.8:8, heat and pressurize, and naturally cool to room temperature (25°C) to obtain a premix; then Stir and mix the composite bacterial powder obtained in step (1) with the premixed material at a mass ratio of 1:90, perform anaerobic fermentation to obtain a fermented material, and set aside;

[0055] (3) In addition, polyaspartic acid and polyvinyl alcohol aqueous solution with a mass concentration of 12% were stirred and m...

Embodiment 3

[0070] A preparation method of a microbial inoculant suitable for planting corn in saline-alkali soil, the specific steps are as follows:

[0071] (1) Preparation of composite bacterial powder: firstly inoculate, ferment, flocculate, Press filtration, drying and crushing to obtain the corresponding bacterial powder, and then mix the obtained bacterial powder at a mass ratio of 1:0.5:0.5:1:1:1.5 to obtain a composite bacterial powder for later use;

[0072] (2) Next, mix corn stalk powder, mushroom dregs, cottonseed meal, and water at a mass ratio of 1:0.5:0.5:8, heat and pressurize, and naturally cool to room temperature (25°C) to obtain a premix; then Stir and mix the composite bacterial powder obtained in step (1) with the premixed material at a mass ratio of 1:80, and perform anaerobic fermentation to obtain a fermented material for subsequent use;

[0073] (3) In addition, polyaspartic acid and polyvinyl alcohol aqueous solution with a mass concentration of 12% were stirr...

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Abstract

The invention provides a microbial agent suitable for planting of corn in saline-alkali soil. The microbial agent is prepared by the following steps: firstly preparing composite microbial powder fromtrichosporon cutaneum, bradyrhizobium japonicum, trichoderma viride, bacillus coagulans, pseudomonas cepacia, and azotobacter chroococcum, mixing the composite microbial powder and a pre-mixed material prepared from corn straw powder, mushroom residues, cottonseed meal and other materials, performing anaerobic fermentation to obtain a fermented material, pouring the fermented material into a covering material prepared from polyaspartic acid and a polyvinyl alcohol aqueous solution to obtain a pre-prepared material, finally adding polycaprolactone into the pre-prepared material, performing uniform stirring to obtain a mixture, adding activated sludge into the mixture, and performing aerobic fermentation to obtain the the microbial agent. After the microbial agent provided by the invention is applied into the saline-alkali soil, the physical and chemical properties of the soil can be improved, the nutrient requirements of growth of the corn can be met, and the yield of the corn can be improved.

Description

technical field [0001] The invention relates to the technical field of microbial fertilizers, in particular to a microbial bacterial agent suitable for planting corn in saline-alkali soil and a preparation method thereof. Background technique [0002] my country's per capita land area is far behind the international per capita land area level, so it is particularly important to develop and utilize the existing saline-alkali land. In China, saline-alkali land accounts for more than 10% of the cultivated land area. Saline-alkali land refers to the soil ecological environment with a salt content greater than 0.3% and a pH value greater than 8. Such soil environments almost all have low organic matter content, low nitrogen content, and available phosphorus content. Low, low effective moisture content, poor soil aggregate structure, decreased soil permeability, inhibited microbial flora activity, low soil temperature in spring and autumn and high in summer, not only hinders the a...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04C05F17/00A01G22/20A01B79/02C12N1/16C12N1/20C12N1/14C12R1/645C12R1/885C12R1/41C12R1/07C12R1/38C12R1/065C05G3/80
CPCC05F5/00C05G3/00C12N1/16C12N1/20C12N1/14A01G22/20A01B79/02C05G5/37C05G3/80C05F17/50Y02W30/40
Inventor 于彦丽孟昭东赵勐李文兰孙琦李文才鲁守平
Owner MAIZE RES INST SHANDONG ACAD OF AGRI SCI
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