Production method of slow-release and synergistic fucoidan nitrogen fertilizer containing Bacillus megaterium

A technology of Bacillus megaterium and alginate ammonium, which is applied in microorganism-based methods, biochemical equipment and methods, nitrogen fertilizers, etc., can solve the problems of easy decomposition of additives, unstable long-term effect, and high production costs, and achieves high production efficiency. Effective number of viable bacteria, strong environmental adaptability, and the effect of improving utilization

Active Publication Date: 2017-11-28
WUZHOUFENG AGRI SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polymer-coated fertilizer is a typical and internationally recognized controlled-effect fertilizer. The basic feature of this type of fertilizer is that its nutrient release is well regulated, but it has high production costs, complicated processes, and unstable long-term performance. and other issues; modified (type) fertilizers are a type of non-coated fertilizers, which change the properties of water-soluble fertilizers by adopting certain manufacturing methods, or adding certain additives, or adding certain carriers, so as to control or delay fertilizer production. The purpose of nutrient release in
However, there are still problems that additives are easily decomposed and lost
[0004] The above two sustained-release principles are coated with chemical technology or chemically added, and both have certain chemical residues and pollution.

Method used

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  • Production method of slow-release and synergistic fucoidan nitrogen fertilizer containing Bacillus megaterium
  • Production method of slow-release and synergistic fucoidan nitrogen fertilizer containing Bacillus megaterium
  • Production method of slow-release and synergistic fucoidan nitrogen fertilizer containing Bacillus megaterium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Grinding the washed and dried fresh sargassum into 50-60 mesh powder;

[0045]The seaweed powder and water are put into the fermenter according to the mass ratio of 2:100, and sterilized at 115°C for 30 minutes to obtain product A; and prepare the seed liquid: inoculate Bacillus megaterium YIC~BM1 into the liquid medium and cultivate it for 20 hours; The preservation number of the Bacillus megaterium YIC~BM1 is CGMCC No.12156; the liquid culture medium is: 5g of sodium alginate, 5g of ammonium sulfate, 1g of magnesium sulfate, 2g of dipotassium hydrogen phosphate, 0.01g of ferrous sulfate and distilled water 1000ml of the mixture, pH7.2~7.4; the volume ratio of Bacillus megaterium YIC~BM1 and culture medium is 2:100. Add the seed liquid to product A, wherein the mass ratio of seed liquid to product A is 1:100 to obtain product B; ferment product B at a temperature of 20°C and a pH of 5.5 to 6.0, and the fermentation time is After 7 days, product C was obtained; adjust ...

Embodiment 2

[0048] The washed and dried fresh copper algae and fresh sargassum are compounded according to the mass ratio of 1:1, and ground into 50-60 mesh powder;

[0049] Put seaweed powder and water into a fermenter according to the mass ratio of 6:100, sterilize at 115°C for 25 minutes to obtain product A; and prepare seed liquid: inoculate cellulase-producing Bacillus megaterium YIC~BM1 into liquid culture base, cultivated at 35°C for 24 hours; the preservation number of the cellulase-producing Bacillus megaterium YIC~BM1 is CGMCC No.12156; the volume ratio of the cellulase-producing Bacillus megaterium YIC~BM1 to the culture medium is 5 :100. The seed liquid is added to product A, wherein the mass ratio of seed liquid to product A is 10:100, and product B is obtained; product B is fermented at a temperature of 35°C and a pH of 6.0 to 6.5, and the fermentation time is After 8 days, product C was obtained; adjust the pH of product C to 5.5-6.0, and adjust the temperature to 5°C with...

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Abstract

The invention relates to a production method of a bacillus megaterium-containing slow-release synergistic brown algae urea-ammonium mixed nitrogen fertilizer, comprising the following steps: grinding dried brown algae into powder, adding the brown algae powder into water according to a certain proportion, putting the solution into a fermentation tank, and sterilizing; preparation of a seed broth: screening to obtain a fermentation strain YIC-BM1 bacillus megaterium capable of generating cellulase, inoculating the fermentation strain into a liquid medium and culturing for a certain period of time; adding the seed broth into the fermentation tank, fermenting, adjusting fermentation condition, preserving for a certain period of time, adjusting fermentation condition once again and supplementing the seed broth, drying the fermentation broth after three times of adjustment so as to obtain bacillus megaterium inocula, mixing the inocula, crushed urea particles and an ammonium nitrogen fertilizer and granulating by a reaction type granulator, and drying at low temperature so as to obtain a finished product. The fermentation process is stable and controllable, and is suitable for large-scale production. The product contains alga extract and functional strain, has slow-release synergistic effect, and can enhance utilization rate of a nitrogenous fertilizer and improve quality and increase yield.

Description

technical field [0001] The invention relates to a method for producing fertilizer. Background technique [0002] my country's nitrogen fertilizer production and consumption rank first in the world, but the low fertilizer utilization rate is a major bottleneck restricting my country's agricultural development. According to the data, in 2011, the amount of nitrogen fertilizer applied in my country was 24 million tons. Due to the low utilization rate of fertilizer, the loss of nitrogen fertilizer through volatilization, leaching and runoff was huge. The direct loss of fertilizer was about 10 million tons, equivalent to about 34 billion yuan. At the same time, it will bring about the decline of soil fertility, the reduction of crop quality, and serious environmental pollution. Therefore, increasing the utilization rate of fertilizers and reducing the loss of fertilizers has received extensive attention from agricultural workers at home and abroad. [0003] According to differe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00C05G3/04C05G3/08C05G5/00C12N1/20C12R1/11C05G3/80C05G3/90
CPCC05C3/00C05G3/80C05G3/90C05G5/12C12N1/20C05C9/00C05F11/08
Inventor 王学江张志凯
Owner WUZHOUFENG AGRI SCI & TECH
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