刮盐皮-标准曲线法测土壤盐分与其他方法的比较

测定土壤中可溶性盐分有不同的方法,残渣烘干法为经典法,适用于不同土壤;阴阳离子总和测定法误差稍大,操作较繁;电导法-标准曲线法如果标准样品少,精确度达不到要求;刮盐皮—标准曲线法有较好的实用性,在一定地域内可以进行土壤可溶性盐分的快速测定,精确度准确可靠。

Comparison of the method of salt crust-standard curve than others to detect soil salt content

Methods were available to detect the content of soil dissoluble salt, such as the method of remainder dry, the summation of negative ion and positive ion, electroconductance-standard curve and salt curve and salt curst-standard curve. The classic remainder dry method could be applicable to kinds of soil ; the summation of negative ion and positive ion was slightly low precise and laborious ; if standard samples were not enough, the accuracy of electroconductance-standard curve could be unaccepted ; the method of salt crust-standard curve was, for a given region, more practical and efective.