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Method for improving rice quality by using compound microbial agent

A compound microbial bacterial agent and bacterial agent technology, which is applied in the field of crop management, can solve the problems that the compound microbial bacterial agent cannot be well utilized and the cost is high, and achieve the effects of low cost, increased plant height, and simple method

Active Publication Date: 2022-03-11
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method for improving the quality of rice by using a composite microbial agent to solve the problems in the prior art that the cost of improving rice quality is high and the composite microbial agent cannot be well utilized

Method used

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  • Method for improving rice quality by using compound microbial agent
  • Method for improving rice quality by using compound microbial agent
  • Method for improving rice quality by using compound microbial agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] In the retting stage, Bacillus amyloliquefaciens, yeast and nitrogen-fixing bacteria were respectively inoculated in a liquid medium for expanded culture. The liquid medium used glucose as a carbon source, peptone as a nitrogen source, and calcium chloride as an inorganic salt to regulate the culture. The base pH value is 7.2, cultivated at 30°C and 150r / min for 48h, and the viable concentration of Bacillus amyloliquefaciens is 1×10 8 individual / ml, the viable yeast concentration is 1×10 9 / ml, the live bacterial concentration of nitrogen-fixing bacteria is 2×10 8 Individual / ml, according to the ratio of Bacillus amyloliquefaciens, saccharomyces, and nitrogen-fixing bacteria=1:3:4, mix the fermentation liquid of each strain to obtain the microbial inoculum in the retting stage, dilute it with water at a ratio of 1:10, and then spray it To the middle of the field, the spraying rate is 190kg / mu;

[0056] In the tillering stage, Streptomyces, glutamic acid fermenting bac...

Embodiment 2

[0060] In the retting stage, Bacillus amyloliquefaciens, yeast and nitrogen-fixing bacteria were respectively inoculated in a liquid medium for expanded culture. The liquid medium used glucose as a carbon source, peptone as a nitrogen source, and calcium chloride as an inorganic salt to regulate the culture. The base pH value is 7.3, cultivated under the condition of 27°C and 150r / min for 48h, and the viable concentration of Bacillus amyloliquefaciens obtained is 4×10 8 Individuals / ml, the live bacterial concentration of yeast is 2×10 9 / ml, the live bacterial concentration of nitrogen-fixing bacteria is 1×10 8 Individual / ml, according to the volume ratio of Bacillus amyloliquefaciens, saccharomycetes, nitrogen-fixing bacteria = 1: 2.5: 3.5, the fermentation broth of each bacterial strain is mixed to obtain the microbial inoculum of retting stage, after diluting with water in a ratio of 1: 10 Spraying to the middle of the field, the spraying rate is 140kg / mu;

[0061] In the...

experiment example 1

[0065] Experiments were carried out in rice fields (50 mu) in Chongming District, and the addition plan of the combination of organic fertilizer and compound microbial agent was set:

[0066] Traditional chemical fertilizer group (as blank control group), according to the consumption of 750kg / mu, it is applied in the conventional fertilization period;

[0067] Organic fertilizer addition group, organic fertilizer was purchased from Zhejiang Weimeisi Agriculture and Animal Husbandry Co., Ltd., and was applied in the conventional fertilization period according to the amount of 750kg / mu;

[0068] Organic fertilizer+planting type compound microbial inoculum group, organic fertilizer is the same as organic fertilizer adding group, planting type compound microbial inoculum adding group uses the compound microbial inoculum method in embodiment 1;

[0069] Organic fertilizer + traditional microbial agent group, organic fertilizer and organic fertilizer added group, the traditional mic...

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Abstract

The invention provides a method for improving rice quality by using a compound microbial agent, and belongs to the technical field of crop management. According to the rice quality improving method, bacillus amyloliquefaciens, saccharomycetes and nitrogen-fixing bacteria are applied in the field retting stage, streptomyces, glutamic acid zymophyte, nitrogen-fixing bacteria and bacillus subtilis are applied in the tillering stage, bacillus thuringiensis, azotobacter chroococcum, phosphate solubilizing bacteria and potassium solubilizing bacteria are applied in the booting stage; beauveria bassiana, saccharomycetes, phosphate solubilizing bacteria and potassium solubilizing bacteria are applied in the heading stage and the mature stage. According to the method disclosed by the invention, the problems that the cost for improving the quality of the rice is high and a compound microbial agent cannot be well utilized in the prior art are solved by matching the specific microbial agent with different growth periods of the rice; the quality indexes such as the plant height and the root length of a rice plant, soluble sugar of rice grains, soluble protein of the rice grains, the rice ear length, the thousand seed weight, the number of grains per ear, the rice maturing rate and the number of effective rice ears can be remarkably improved, and the method is simple, lower in cost and suitable for large-scale popularization.

Description

technical field [0001] The invention relates to the technical field of crop management, in particular to a method for improving the quality of rice by using a compound microbial agent. Background technique [0002] Rice is an annual aquatic herbaceous crop of the Poaceae family, and it is also an important grain widely planted in tropical Asia. Southern China is the main rice-producing area, and it is planted in all northern provinces. As one of the most important food crops for human beings, rice has a long history of cultivation and consumption. Half of the world's population eats rice, mainly in Asia, southern Europe, and parts of tropical America and Africa. The total output of rice accounts for the third place in the world's grain crop output, lower than that of corn and wheat, but it can maintain the lives of a large number of people. Therefore, how to improve the quality and yield of rice planted by farmers has always been a key issue in rice planting technology. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/22A01G7/06A01N63/32A01N63/22A01N63/20A01N63/28A01N63/23A01N63/30A01P21/00
CPCA01G22/22A01G7/06A01N63/32A01N63/22A01N63/20A01N63/28A01N63/23A01N63/30
Inventor 何池全徐子钦王菲菲王道源
Owner SHANGHAI UNIV
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