近三十年来由于土壤肥料研究的快速发展,特别是遥感技术和电子计算机应用到土壤资源调查和土壤肥料科学研究以来,各种各样的现代仪器,如自动分析仪,全自动气相色谱仪、中子活化分析装置、电子微探针X 射线分析仪、全自动原子吸收分光光度计、感应耦合等离子气体原子发射光谱仪等陆续应用于土壤肥料研究。这些仪器是测量 In recent thirty years, due to the rapid development of soil and fertilizer research, especially since the application of remote sensing technology and computer to soil resource investigation and soil and fertilizer science research, a variety of modern instruments such as automatic analyzer, automatic gas chromatograph, Neutron activation analysis device, electronic microprobe X-ray analyzer, automatic atomic absorption spectrophotometer, inductively coupled plasma gas atomic emission spectrometer and other applications in soil and fertilizer research. These instruments are measured