Integrated apparatus used for potting test soil stratified sampling

Abstract

The invention discloses an integrated apparatus used for potting test soil stratified sampling. The integrated apparatus comprises a potting container and a soil sampler; the potting container is a container with an opening at the top; the periphery wall of the container is provided with multiple sampling holes, and each sampling hole is provided with a sealing rubber plug for sealing or opening the hole; the soli sampler comprises an outer cylinder and an inner push rod nested in the outer cylinder; the front end of the outer cylinder is provided with an observation groove, and the upper side of the observation groove is provided a row of limit screw holes distributed at the transverse direction; the front end of the inner push rod is also provided with limit screw holes corresponding to the limit screw holes in the outer cylinder; the outer cylinder and the inner push rod are movably fixed by inserting position-clamping screw spikes into the limit screw holes in the outer cylinder and the inner push rod; and the tail end of the inner push rod is also connected with a handle. By ingeniously combining the potting container and the soil sampler, uniform accurate stratifying and multi-point mixed sampling can be performed on the potting test soil, so that the accuracy, the representativeness and the comparability of soil test data are guaranteed.

Description

Technical field: [0001] The invention relates to a sampling device for studying the dynamic laws of soil sensitivity indexes at different depths, in particular to an integrated device for layered sampling of soil for pot plant experiments. Background technique: [0002] During the pot experiment using soil as the plant growth medium, affected by plant absorption, root activity, microbial activity, etc., some physical, chemical, and biological indicators (sensitivity indicators for short) that can sensitively reflect changes in soil quality in soil at different depths ) may be different, so it is necessary to collect and analyze soil samples in different layers. Depending on the nature of the subject and the purpose of the research, the sensitivity indicators that can be selected may include: aggregate characteristics, pH, redox potential, electrical conductivity, water-soluble organic matter, water-soluble salt, available nutrients, heavy metal form, enzyme activity, microbi...

AI Technical Summary

Problems solved by technology

This method is beneficial to the layered sampling of soils with various texture types, but because the gaps of each layer need to be connected and sealed before each pot test, and the leak detection must be done, and the tape and soil between the layers need to be carefully cut when sampling. The operation is cumbersome and time-consuming, so it is difficult to popularize and apply in pot experiments when the number of experiment repetitions is large

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