土壤酸碱性是土壤的重要化学性质之一。也就是说土壤溶液的反应,是酸的、碱的、还是中性的。它既是土壤形成、熟化过程的产物,又是植物生长发育的环境条件,对农业生产的作用是多方面的,所以很早就引起人们的注意。一、土壤酸碱性的计量和测定土壤酸碱性常以酸碱度来计量。计量酸碱程度用“pH”值来表示。pH 的定义是溶液 Soil acid-base soil is one of the important chemical properties. That is, the reaction of the soil solution is acidic, alkaline, or neutral. It is not only the product of soil formation and maturation, but also the environmental condition of plant growth and development. The role of agriculture in production is multifaceted, so it has long been attracting people’s attention. First, the soil acidity and alkalinity of the measurement and determination Soil pH is often measured by pH. The acidity and alkalinity are expressed as “pH”. The definition of pH is solution