论文部分内容阅读
在不同温度下对广西不同土壤类型的40个样本采用 Olsen 法测定其速效磷含量,经统计处理,配置曲线回归方程,推导出测定土壤速效磷的温度校正式,并计算出温度校正系数,可以将在10—34℃下的测定值换算成25℃时的土壤速效磷含量,与马新民等的经验校正式比较,误差小些;同时扩大了温度范围(10—34℃),这对具有高温漫的长夏天的南方较为适合。
The 40 samples of different soil types in Guangxi were measured by Olsen method at different temperatures to determine the available phosphorus content. After statistical processing, the curve regression equation was configured to derive the temperature correction formula for the determination of available phosphorus in soil and calculate the temperature correction coefficient. When the measured value at 10-34 ° C is converted to the available phosphorus content at 25 ° C, the error is smaller than that of Ma Xinmin et al. And the error is smaller. Meanwhile, the temperature range (10-34 ° C) is expanded, The high temperature diffuse long summer south is more suitable.