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Microorganism product for reducing soil alkalinity of low beaches and saline-alkali land

A technology of saline-alkali land and microorganisms, applied in the field of microorganisms, can solve the problems of undiscovered literature reports and achieve the effect of sustainable utilization

Active Publication Date: 2015-05-20
HOHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] So far, no literature reports related to the subject of the present invention have been found

Method used

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Embodiment Construction

[0021] Below in conjunction with embodiment the present invention will be further described.

[0022] (1) Production of microbial products

[0023] (1) Brevibacterium flavum CCTCC NO: M2013087 was inoculated into the liquid seed medium for cultivation. The cultivation conditions were as follows: cultivation temperature 37°C, shaker speed 150rpm, cultivation time 24 hours, seed bacteria content greater than 1×10 9 cfu ml -1 , the seeds are inoculated into the fermenter according to the volume ratio of 5% for liquid fermentation production. The conditions for the fermentation production are: culture temperature 28-33°C, dissolved oxygen ventilation range 30-100%, 150-220rpm, fermentation liquid in the late stage of fermentation The colony forming unit of the strain is ≥1×10 9 cfu ml -1 . The formula of the liquid seed medium used is prepared according to 1L medium: beef extract 3g, peptone 10g, NaCl 3g, tap water 1000ml, pH range 7.0-7.5, sterilized at 121°C for 20min; the f...

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Abstract

The invention discloses a microorganism product for reducing soil alkalinity of low beaches and saline-alkali land, and belongs to the soil improvement technology. The microorganism product is that microorganism fermented solid wastes capable of synthesizing glutamic acid can be utilized to produce a soil improvement product; the functional microorganism strains in the product can be synthesized into glutamic acid while propagating in soil, and meanwhile, the pH of the soil is lowered down, so that the effects of reducing alkalinity and improving the saline-alkali land can be achieved. The microorganism product is produced from brevibacterium flavum solid fermented agricultural wastes; the product contains not less than 0.5*10<8> cfug<-1> of brevibacterium flavum, not greater than 30% of water content, and not less than 45% of organic matters, and the pH is 5.5. The test shows that the bio-organic fertilizer can be applied to the soil in the low beaches and saline-alkali land, the pH can be continuously reduced in salt leaching for a long term; and therefore, the product is able to effectively reduce soil alkalinity of the low beaches and saline-alkali land.

Description

technical field [0001] The invention relates to a microbial product for reducing the alkalinity of mudflat saline-alkali land soil, which belongs to the technical field of microorganisms. Background technique [0002] my country has a continental coastline of 18,000 kilometers. A large amount of tidal flat land is formed due to sediment deposition. The high-quality development of tidal flat soil can provide a large amount of agricultural land and bring huge economic and ecological benefits to the society. [0003] The main method of improving tidal flat saline-alkali land is to drain the water by ditches, relying on precipitation or artificially using fresh water to wash the salt. There is a large amount of exchangeable sodium adsorbed in the soil colloid of coastal beach saline-alkali land. During the process of washing salt in the soil, the sodium in the colloid exchanges with the calcium and magnesium ions in the colloid, so that the soil colloid absorbs more exchangeable...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/00C09K109/00
CPCC09K17/00C09K2101/00C09K2109/00
Inventor 陈立华邵孝侯郝树荣温扶辉金秋沈珊珊
Owner HOHAI UNIV
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