在讨论大田作物栽培的许多方面、特别是植物营养和各种肥料的使用时,往往都要涉及土壤反应、或现在所谓的土壤 pH 的问题。本文扼要地靛明土壤 pH 的含义以及这种土壤性质对胶树的营养和生长有什么影响。用最简单的术语来说,土壤 pH 就是土壤溶液的酸度或碱度的一种尺度。根据定义,酸类是在溶液中能释放出带正电荷氢原子(即氢 In discussing many aspects of field crop cultivation, especially plant nutrition and the use of various fertilizers, there is often a question of soil reactions, or what is now called soil pH. This article briefly states the meaning of soil pH and how this soil properties have affected the nutrition and growth of gum trees. In its simplest terms, soil pH is a measure of the acidity or alkalinity of a soil solution. By definition, acids are able to release positively charged hydrogen atoms in solution (ie hydrogen