摘要
介绍了有效数字的概念和正确记录检测数据的方法。讲述了有效数字运算和数值修约规则。通过土壤、植株检测实例阐述了正确表示检测结果在农业化学分析工作中的意义和作用。
The conception of significant digit and the method of taking down the test data professionally were introduced. The rules of the operation of the significant digit and the rounding off of numerical values were discussed. The meaning and function of expressing the test data correctly in the argrochemistry analysis were explained through sample determination from soil and plant.
出处
《中国土壤与肥料》
CAS
CSCD
北大核心
2008年第5期1-5,共5页
Soil and Fertilizer Sciences in China
关键词
有效数字
数值修约规则
农业化学分析
significant digit
rules for rounding off of numberical values
argrochemistry analysis
