土壤是人类生存最基本的自然资源，是植物最重要的生长介质。植物吸收的营养物质大部分来自土壤，因而土壤环境条件对植物吸收养料影响极大。这些影响，有的是直接的，有的是间接的，相互联系，互相制约，关系错综复杂，现分下列几方面进行讨论。一、土壤的供肥能力土壤供... Soil is the most basic natural resource for human existence and the most important growth medium for plants. Most of the nutrients absorbed by plants come from the soil, so the environmental conditions of the soil have a great influence on the nutrient absorption by the plants. Some of these influences are direct, some are indirect, interconnected and mutually restrained, and the relationship is complicated. The following aspects are discussed in the following sections. First, the soil for fertilizer capacity for soil ...