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土壤质地在以施肥咨询为目的的土壤分析数据解释中,常常起着重要的作用。因而,在大多数咨询实验室中,需要有一种可靠而又花费不多的佔算粘粒含量的方法。本文讨论了用样品密度(例如一勺土的质量),作为粘粒含量的一种指标,发现二者之间存在着极为密切的关系,这种估算粘粒含量的方法优于经验丰富的土壤学家用“指感法”估测,本方法快速简便,适于室内大批样品的分析。
Soil texture often plays an important role in the interpretation of soil analysis data for fertilization advice. Thus, in most consulting laboratories, there is a need for a reliable and inexpensive method of accounting for clay content. This article discusses the use of sample densities (eg, the mass of a spoonful of soil) as an indicator of clay content and found that there is a very close relationship between the two, a method of estimating clay content superior to that of an experienced soil The scientist used the “finger sense” estimation, the method is quick and easy, and is suitable for the analysis of a large number of indoor samples.