Soil orders are divided into suborders , great groups , subgroup , family , and series . Understanding how to interpret the soil naming system tells a scientist much about the characteristics and capabilities of a soil. Soils are then placed in soil capability groupings. Lecture Soil Provides for many of the physiological needs of the plant. Water-holding capacity, stores water in soil for plant use.
Essential nutrients come predominantly from the soil.
Water and nutrients used by plant come from portion of soil that is in direct contact of roots. Soil as environment for plant roots is of major importance for success of crop. There is a relationship between soils and water availability for plants. Comprehensive soil classification system. 10 major soil orders.