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Biochar based potash fertilizer synergist and preparation method thereof

A technology of biochar and potassium-based fertilizer, which is applied in the direction of organic fertilizer, fertilization device, fertilizer mixture, etc., can solve the problem of the limited ability of synergists to dissolve potassium, and achieve the effect of promoting long-term effective decomposition and improving soil fertility

Active Publication Date: 2018-03-27
DALIAN POLYTECHNIC UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although there are many bibliographical reports on biochar-based potassium fertilizer synergists in the prior art, the synergists have limited potassium decomposing ability. Potassium-capable biochar-based synergists

Method used

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  • Biochar based potash fertilizer synergist and preparation method thereof
  • Biochar based potash fertilizer synergist and preparation method thereof

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Embodiment 1

[0019] A biochar-based potassium fertilizer synergist, including corncob composite biochar and colloidal bacillus loaded on the corncob composite biochar; wherein the corncob composite biochar is composed of corncob biochar and Yidaixin sugar .

[0020] A preparation method of the above-mentioned biochar-based potassium fertilizer synergist, comprising the steps of:

[0021] S1, mix corncob biochar and Yidaixin sugar with a mass concentration of 1% at a ratio of 1g:100ml, place it at room temperature for 10min, filter and discard the filtrate, collect corncob biochar and dry it at 55°C to obtain Corncob composite biochar, ready for use;

[0022] S2, inoculate Bacillus colioids into LB liquid medium, shake culture in a shaker at 120r / min at 30°C, culture solution OD 600 Stop the culture when it reaches 1.0, then centrifuge at 4°C and 6000r / min for 10min, collect the bacteria, suspend and mix with the same volume of sterile saline as the bacteria sediment, and get the suspensi...

Embodiment 2

[0027] A biochar-based potassium fertilizer synergist, including corncob composite biochar and colloidal bacillus loaded on the corncob composite biochar; wherein the corncob composite biochar is composed of corncob biochar and Yidaixin sugar .

[0028] A preparation method of the above-mentioned biochar-based potassium fertilizer synergist, comprising the steps of:

[0029] S1, mix corncob biochar with 2% Yidaixin sugar at a ratio of 1g: 150ml, place it at room temperature for 20min, filter and discard the filtrate, collect corncob biochar and dry it at 65°C to obtain Corncob composite biochar, ready for use;

[0030] S2, inoculate Bacillus colioids into LB liquid medium, shake culture in a shaker at 120r / min at 30°C, culture solution OD 600 Stop the culture when it reaches 1.0, then centrifuge at 4°C and 6000r / min for 10min, collect the bacteria, suspend and mix with the same volume of sterile saline as the bacteria sediment, and get the suspension of Bacillus colloidus, w...

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Abstract

The invention belongs to the technical field of potash fertilizer synergist, and in particular, relates to a biochar based potash fertilizer synergist and a preparation method thereof; the synergist includes corncob compound biochar and bacillus mucilaginosus loaded on the corncob compound biochar. The preparation method comprises the steps: mixing corncob biochar and an isomaltulose solution, placing at room temperature for a period of time, filtering, and then drying, to obtain the corncob compound biochar; inoculating an LB liquid culture medium with bacillus mucilaginosus, carrying out shaking culture in a shaking table, terminating the culture when the culture liquid OD600 reaches 1.0, carrying out aseptic centrifugation, and then adding normal saline to obtain a bacterial suspension;and mixing the corncob compound biochar and the bacillus mucilaginosus suspension with the mass and volume ratio of 5:1, oscillating, filtering and drying. The biochar based potash fertilizer synergist provided by the invention can increase the biological activity of bacillus mucilaginosus by 53.7% and increase the potassium dissolving ability by 6.5 times.

Description

technical field [0001] The invention belongs to the technical field of potash fertilizer synergists, in particular to a biochar-based potassium fertilizer synergist and a preparation method thereof. Background technique [0002] Fertilization has become one of the indispensable technical measures of agricultural production, contributing more than half of crop production. The utilization rate of fertilizers in China has always been relatively low. For example, the utilization rate of nitrogen fertilizers for current season crops is only about 30% on average, which is nearly 20 percentage points lower than that of developed countries. This is due to unscientific fertilization methods on the one hand, and the fertilizer itself on the other hand. Due to the limited characteristics, fertilizer synergists came into being. Potassium fertilizer in fertilizer, the full name of potassium fertilizer, is a fertilizer with potassium as the main nutrient. The potassium content in plants ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
CPCC05D9/00C05G3/00C05F11/00C05F11/08
Inventor 李宪臻唐文竹
Owner DALIAN POLYTECHNIC UNIVERSITY
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