Device for measuring water and fertilizer retention of soil sample

Abstract

The invention discloses a device for measuring water and fertilizer retention of a soil sample, and the device comprises a base main body, a placement groove, a material storage test tube and a feeding port; a supporting column is fixed to the middle of the upper portion of the base main body through screws, a clamping plate is fixedly welded to the outer side of the supporting column in a nestedmode, and a mounting plate is fixed to the top end of the supporting column through screws; placing grooves are formed in the outer side faces of the clamping plates at equal intervals with the centers of the clamping plates as the circle centers, rubber pads are placed in the placing grooves, fixed plates are clamped into the outer sides of the supporting columns, material storage test tubes areplaced below the fixed plates, and the bottoms of the material storage test tubes make contact with the upper surface of the base body; and a glass test tube is placed above the fixed plate. The device is provided with the clamping plates, so that the water and fertilizer retention of the soil samples with different components can be conveniently and synchronously measured, the operation is convenient and simple, the time and labor are saved, and the detection work of workers is facilitated.

Description

technical field [0001] The invention relates to the technical field of water and fertilizer retention of soil samples, in particular to a device for measuring the water and fertilizer retention of soil samples. Background technique [0002] With the continuous development of science and technology, we pay more and more attention to scientific planting, which will increase the survival rate and harvest rate. During the planting process, we need to collect certain samples of the soil, and then check the water and fertilizer retention of the collected soil samples. In order to detect whether the soil sample meets the needs of planting, it is necessary to use a measuring device in the process of testing. Although there are many types of measuring devices on the market, there are still some shortcomings in the process of use. for example: [0003] 1. The existing device for measuring the water and fertilizer retention of soil samples has a single structure, and can only measure ...

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a kind of device that measures soil sample water retention and fertility, to solve the existing device structure that measures soil sample water retention and fertilizer retention on the market that the above-mentioned background technology proposes, and can only be used for one kind of soil at a time. For the measurement of samples, when it is necessary to measure a variety of different soil samples, it needs to be measured sequentially. The operation is cumbersome, time-consuming and laborious. When injecting water or nitrogen fertilizer solution, the staff needs to inject one by one. Good synchronous control of the amount of injection, inconvenient for later comparative tests

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