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目前,土壤养分的速测是在磁板或试管中进行。以纸为截体的测定法,除钾的测定外,未见系统报导。为实现“全党动员,大办农业,为普及大寨县而奋斗”的战斗任务,经反复试验,提出一种土壤养分纸上简捷速测的方法。本法用微量分析的技术,将所需大多数化学试剂分别浸在纸上,试剂与待测元素在纸条上反应显色,根据显色深浅与待测元素含量
At present, soil nutrients are measured in magnetic plates or test tubes. Paper as the intercept of the determination, in addition to the determination of potassium, no systematic reports. In order to realize the combat task of “mobilizing the entire Party, running agriculture greatly and striving for the popularization of Dazhai County”, after repeated tests, a simple and quick method for measuring soil nutrient paper was put forward. This law with the micro-analysis of the technology, the required most of the chemical reagents were immersed in paper, reagents and test elements in the reaction of the paper color, according to the color depth and content of the elements to be tested