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组合式土壤肥料养分测定仪是河南农业大学白由路讲师等研制的用来快速测定土壤和肥料中的养分的小型仪器,它的主要功能是测定土壤和有机肥料中的铵态氮、硝态氮、速效磷和速效钾,精度为0.1ppm;各种磷肥中的有效磷和化学钾肥中的有效钾,测量精度为0.1%,土壤含水量的测量精度为0.1%。该仪器应用光电比色原理及比色皿中直接显色技术,能降低分析化验成本;创造性采用酶标滴头逐滴加药法,避免了试剂的混杂和浪费;应用硝酸试粉混浊液加入法,使土壤硝态氮的分析精度明显提高;改变了土壤速效磷的显色条件,使土壤速效磷显色稳定,重现性好。该仪器集仪器、药品于一体,结构新颖,配套齐全,快速准确,结果可靠,携带方便,各项
Combined Soil Fertilizer Nutrient Analyzer is a small instrument developed by Baoyulu Lecturer of Henan Agricultural University to rapidly measure the nutrients in soil and fertilizer. Its main function is to determine the contents of ammonium nitrogen and nitrate in soil and organic fertilizer Nitrogen, available phosphorus and available potassium, with an accuracy of 0.1ppm; available phosphorus in various phosphate fertilizers and available potassium in chemical potash with a measurement accuracy of 0.1% and a soil moisture measurement accuracy of 0.1%. The instrument uses the principle of photoelectric colorimetric and cuvette in the direct color technology, can reduce the cost of laboratory analysis; innovative use of enzyme-labeled drip dosing method to avoid the reagent mixed and waste; nitric acid test powder turbid solution was added Method, the soil nitrate nitrogen analysis accuracy was significantly improved; change the soil available phosphorus color conditions, the soil available phosphorus color stability, good reproducibility. The instrument set instruments, medicines in one, the new structure, complete, fast and accurate, reliable results, easy to carry, all