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农业土壤营养元素有效成分含量的测定是农田科学施肥和土壤改良的基础，土壤有效态成分标准物质是考核有效态成分测试量值准确性的依据和使不同区域测试结果进行对比研究的技术保证。新近研制的土壤有效态成分标准物质，研制的样品包括了我国主要农业区的６种类型土壤。研制中为确保样品的均匀和稳定经试验研究采取了多项措施，经分析检验样品的均匀性和稳定性良好。定值由８个经验丰富的实验室统一采用国家标准或公认成熟、可靠的方法分析，定值了有效态成分１４～２０项。１９９６年由国家技术监督局批准为国家一级标准物质。
The determination of the content of nutrient elements in agricultural soil is the basis of scientific fertilization and soil improvement in farmland. The reference material of soil active ingredient is the basis for assessing the accuracy of the measured value of effective constituent and the technical guarantee for comparing the test results in different areas. Recently developed soil active ingredient standard materials, samples developed include six types of soil in China’s major agricultural areas. In the development of the sample to ensure that the uniform and stable experimental study has taken a number of measures to test samples by the analysis of the uniformity and good stability. The value of the eight experienced laboratory uniform use of national standards or recognized proven, reliable method of analysis, the value of the effective component 14 to 20 items. In 1996 by the State Bureau of Technical Supervision approved as a national standard material.