摘要： 探讨了温度对Olsen法测定潮土速效磷的影响，结果表明，提取温度和速效磷浸出量之间呈极显着正相关，这种影响又与土壤速效磷贮量有关。根据统计分析得出比率（）与温度之间的有关参数，确定了包含土壤磷素水平影响在内的10～30℃温度范围的经验校正式：P25=Pt（A+Bt），经检验，不同土样任意温度下测定值的校正值与25℃时测定值无显着差异，符合试验要求。

关键词: 潮土, 速效磷, Olsen法, 温度校正

Abstract: This paper discussed the influence of temperature in testing the available-p in Chao soil by Olsen method. The results showed that singificant correlation existed between extracting temperature and extraction quality of available-p, and this relation was effected by the reserves of available-p in soil. According to the statistics,the parameter between the rate of P,,/P, and the temperature was analyzed, and the correcting equation of P2, = Pt (A +Bt) was chained, which was influenced by phosphate level in soil in the temperature range of 10C to 30^’℃ Through examination, the corrected testing value of each soil sample in different temperature was almost the same as it at 25℃

Key words: Chao soil, Available Phosphorus, Olsen method, Temperature correction

中图分类号: 

• S153