A device for measuring water and fertilizer retention of soil samples

Abstract

The invention discloses a device for measuring the water and fertilizer retention of soil samples, which comprises a base body, a placement tank, a material storage test tube and a feeding port. A support column is fixed on the upper middle part of the base body, and the outer side of the support column is embedded with a support column. The sleeve is welded and fixed with a clamping plate, and the top screw of the support column is fixed with a mounting plate. The outer surface of the clamping plate is provided with placement grooves at equal intervals with the center of the clamping plate as the center of the circle, and the inside of the placement groove is placed with A rubber pad, the outer side of the support column is engaged with a fixed plate, and a storage test tube is placed under the fixed plate, and the bottom of the storage test tube is in contact with the upper surface of the base body, and the upper surface of the fixed plate is placed There are glass test tubes. The device for measuring the water and fertilizer retention of soil samples is provided with a clamping plate, which is convenient for synchronously measuring the water and fertilizer retention of multiple soil samples with different components.

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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