Soil humidity meter for field planting

Abstract

A soil moisture meter for field planting, comprising a stainless steel cylindrical shell, the top of the shell is provided with an end cover for sealing, the center of the lower end cover is provided with a central hole, and a fiber tube bundle is inserted into the center hole, the upper end of the fiber tube bundle extends into the shell, and the lower end extends into the shell. Out of the shell, there is a No. 1 humidity sensing electrode under the top end cover of the shell, and a No. 2 humidity sensing electrode is set at an interval of 20~30mm below the No. 1 humidity sensing electrode. The bottom surface of the No. 2 humidity sensing electrode is covered with a semi-permeable film layer. A semi-permeable membrane sleeve is set on the fiber tube bundle entering the shell, the top of the semi-permeable membrane sleeve is sealed and connected with the semi-permeable membrane layer, and the cavity surrounded by the semi-permeable membrane layer, the semi-permeable membrane sleeve and the inner wall of the shell is filled with salt ionic solution. The structure is simple, the service life is long, and the detection accuracy is high.

Description

technical field [0001] The invention relates to a soil moisture meter. Background technique [0002] Field planting environment detection mainly detects soil temperature, humidity, light, etc., and soil humidity determines the water supply status of crops. If the soil humidity is too low, the soil will be dry, photosynthesis cannot be carried out normally, and the yield and quality of crops will be reduced; severe water shortage will cause crops to wither and die. Excessive soil humidity will deteriorate soil aeration, affect the activities of soil microorganisms, and hinder the respiration and growth of crop roots, thereby affecting the normal growth of crop aboveground parts, resulting in leggy growth, lodging, and disease breeding. Contents of the invention [0003] Aiming at the prior art, the invention provides a soil moisture meter for field planting with simple structure, long service life and high detection accuracy. [0004] In order to achieve the purpose of th...

AI Technical Summary

Problems solved by technology

Soil humidity is too low, resulting in soil drought, photosynthesis can not be carried out normally, reducing the yield and quality of crops; severe water shortage leads to wilting and death of crops

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