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我所广大革命职工根据1975年(农01号)科研项目的要求,和基点贫下中农一道积极地开展了土壤诊断和仪器试制的工作,并对国外采用的“真空表式土壤湿度计”进行改进,研制出了一种结构简单、取材方便、造价低廉的“半真空式土壤水分吸力计”,以适应群众性科学实验的需要。为了互通情报,加快试验进程,现将该测定器的结构形式、工作原理和检测方法,简要地介绍于后,希望有关试验单位加强协作,及时提出改进意见,以便在现有的基础上继续提高,使之成为一种简便的野外测定工具。
Based on the requirements of the scientific research project of 1975 (agricultural No. 01), the vast majority of revolutionary workers of our country actively carried out soil diagnostics and trial production of equipment with the poor peasants at the lowest source and improved the “vacuum table-type soil hygrometer” adopted abroad , Developed a “semi-vacuum soil moisture suction meter” with simple structure, convenient drawing and low cost to meet the needs of mass scientific experiments. In order to exchange information and expedite the testing process, the structural form, working principle and testing method of this measuring device are briefly introduced later. We hope relevant testing units will step up their cooperation and put forward suggestions for improvement in time in order to continue to improve on the existing basis , Making it an easy field measurement tool.