应用连续流动分析仪浸提温度对土壤有效磷测值的影响

EFFECTS OF LEACHING TEMPERATURE ON THE MEASUREMENTS OF AVAILABLE SOIL PHOSPHORUS CONTENT BY USING A CONTINUOUS FLOWING ANALIZER

摘要:

本文主要探讨了应用从匈牙利引进的连续流动分析仪,采用Olsen法测定土壤有效磷时,不同浸提温度对土壤有效磷测试结果的影响。并通过吉林省主要土壤类型29个土样的试验,确定不同浸提温度下,不同有效磷含量的数据矫正值及数学方程。以便在不同提取温度下测出的数据,均可求出在25℃时的有效磷含量。

Abstract:

The effects of different leaching temperatures on the measurement of available soil phosphorus content were studied by using the Olsen method with a continuous flowing analyzer imported from Hungary. Tweety nine soil samples collected from Jilin Province were analyzed to determine the correcting parameters for the available phosphorus content of each soil type under different leaching temperatures, and to produce methmatical formula which, can be used to rectify the data of available phosphorus content measured at different temperatures the available phosphorus content at 25℃.