Soil microorganism fumigation apparatus and application thereof

Abstract

The invention discloses a soil microorganism fumigation apparatus and an application thereof. A fumigation apparatus body is covered by a shading outer cover and includes a fumigation sealed chamber, a fumigation soil sample cup body apparatus, a temperature control assembly and a fumigation heating assembly. The fumigation apparatus body is communicated with a vacuum pump through a gas pipeline to form the system apparatus. Compared with conventional methods and devices, the soil microorganism fumigation apparatus is ensured in air impermeability; the heating and heat-insulating apparatus can ensure a temperature controlling requirement in fumigation cultivation, so that an operation of placing the fumigation apparatus in a emperature-constant cultivation box is omitted; and the shading outer cover can ensure a dark-light cultivation condition, so that an operation of placing the fumigation apparatus in a dark box is omitted, thereby reducing labor intensity and cost, improving the efficiency of the fumigation cultivation of soil microorganisms and simplifying a cultivation process. By means of proper selection of the number of the fumigation heating assemblies, through an active fumigation process, the contact area of soil to chloroform is fully increased and steam flux is increased, so that the efficiency of the fumigation is increased and the time of the fumigation is reduced.

Description

technical field [0001] The invention belongs to the technical field of soil microorganism detection. Specifically, the invention relates to the technical field of measuring microbial carbon and nitrogen content in soil. More specifically, the invention relates to the technical field of a soil microorganism fumigation device. Background technique [0002] Most of the existing soil microbial fumigation devices are made of glass. There is a ceramic plate with a hole in the middle of the base, which can be taken out. The top cover is equipped with a piston (valve) to control the opening of the container. When in use, put the soil into a small beaker and put it in Dryer, apply vaseline to the upper and lower joints of the dryer to seal the container, open the upper valve to connect the vacuum pump to extract air, and close the piston and vacuum pump after the chloroform boils. [0003] After searching the patent literature in the prior art, it can be seen that the name of the inv...

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Problems solved by technology

[0003] After searching the patent literature in the prior art, it can be seen that the name of the invention is soil microbial fumigation device (patent number is ZL201110360143X, patent publication number is CN 102507286 B) and a soil microbial fumigation device (patent number is ZL 2011204488406, patent announcement number is CN 202362179 U) discloses a soil microbial fumigation device, which uses the chloroform vapor in the container of the base of the accommodating cavity to reach the gas outlet only through the soil sample with the suction force, and is discharged to the outside through the gas pipeline. There is a container in the base of the accommodating cavity, which cannot be fully fumigated with the amount of fumigated soil samples, and the fumigation time cannot be shortened, so that the efficiency of fumigation is not high; at the same time, in the actual scientific research and production of soil microbial fumigation Finally, the device needs to be moved into temperature-controlled and light-proof equipment for cultivation, which consumes manpower and material resources, and the container environment for the equipment to hold the fumigation substances does not have water at a certain temperature, which affects the initial temperature requirements of the chloroform fumigation process. The deficiencies of existing technology need to be improved urgently

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