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Carbon-based immobilized microbial agent soil conditioner and preparation method thereof

The technology of soil conditioner and bacterial agent is applied in the field of soil conditioner and its preparation, which can solve the problems of poor soil remediation effect and easy inactivation, and achieve the effects of inhibiting soil-borne diseases, promoting the decomposition of organic matter and improving soil quality.

Inactive Publication Date: 2018-12-04
NORTHEAST AGRICULTURAL UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims to solve the problem that the existing soil improving bacteria agents are easily inactivated and lead to poor soil restoration effect, and provides a soil improving agent and its preparation method

Method used

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  • Carbon-based immobilized microbial agent soil conditioner and preparation method thereof
  • Carbon-based immobilized microbial agent soil conditioner and preparation method thereof
  • Carbon-based immobilized microbial agent soil conditioner and preparation method thereof

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Effect test

specific Embodiment approach 1

[0028] Embodiment 1: The soil conditioner in this embodiment includes 50-60 parts by weight of straw-based biochar, 50-60 parts of sodium alginate, 20-30 parts of bentonite, and 0.8-1.2 parts of chitosan , 2.5-3 parts of calcium chloride and Bacillus subtilis.

[0029] The Bacillus subtilis (Bacillus subtilis) was purchased from Beijing Biobowell Biotechnology Co., Ltd., with a strain platform number of bio-52746 and a deposit number of CMCC(B)63501.

[0030] The invention adopts immobilized microorganism technology, which can effectively overcome the problem that the repair effect of traditional microbial preparations is easily affected by the environment, and can use the favorable microenvironment provided by the carrier material as a buffer system, thereby effectively shielding the competition of indigenous microorganisms; The single microbial agent has the disadvantages of small number of microorganisms, low activity, poor stability, and intolerance to environmental impact...

specific Embodiment approach 2

[0031] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the live bacteria content of Bacillus subtilis in the described soil conditioner is 10 8 More than cfu / g. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0032] Embodiment 3: This embodiment differs from Embodiment 1 in that: the straw-based biochar is produced by pyrolysis of straw under high temperature and anoxic conditions. Others are the same as in the first embodiment.

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Abstract

The invention discloses a carbon-based immobilized microbial agent soil conditioner and a preparation method thereof, and relates to the soil conditioner and the preparation method thereof. The invention aims to solve the problem that a soil repairing effect is poor because a current soil amelioration microbial agent is easy to inactivate. The soil conditioner includes straw-based biochar, sodiumalginate, bentonite, chitosan, calcium chloride, and bacillus subtilis. The method comprises the following steps: 1, crushing the bentonite, performing sieving to form bentonite powder, and mixing thesodium alginate, the bentonite powder, the chitosan and the calcium chloride to prepare an auxiliary material; and 2, adding the straw-based biochar and a bacillus subtilis fermentation liquid into the auxiliary material, and adding water to obtain the soil conditioner. The soil conditioner disclosed by the invention overcomes defects that a traditional microbial agent has small quantity, low activity and poor stability and is not resistant to environmental impact, can effectively improve soil quality, effectively reduce ammonia volatilization and leaching loss of salt ions such as a nitrateand phosphorus in soil, improve soil nutrients and fertilizer immobilization ability, and improve a crop yield; and the soil conditioner is used for improving the soil.

Description

technical field [0001] The invention relates to a soil conditioner and a preparation method thereof. Background technique [0002] my country is a large agricultural country, and its agricultural area and output rank first in the world. However, a series of soil degradation problems are caused by unreasonable application of pesticides and fertilizers, high intensification, high multiple cropping rate and other agronomic characteristics. Soil compaction, desertification, reduced fertility, decreased microbial activity, and serious soil-borne diseases all seriously threaten ecological security. At present, the problem of agricultural soil degradation has become a hot spot in the world. In the case of increasing market demand and intensification, how to alleviate and prevent the degradation of soil and agricultural ecological environment, enhance soil quality, reduce the occurrence and spread of soil-borne diseases, maintain the stability of agricultural ecological system, and...

Claims

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Application Information

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IPC IPC(8): C09K17/40A01N63/00A01P21/00C09K101/00
CPCA01N63/00C09K17/40C09K2101/00Y02A40/22Y02P60/21
Inventor 张颖王蕾薛越文战树峰于晖李瑞冯程程孙瑞雪
Owner NORTHEAST AGRICULTURAL UNIVERSITY
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