As soil organic matter is derived mainly from plant residues, it contains all of the essential plant nutrients. Therefore, accumulated organic matter is a storehouse of plant nutrients. The stable organic fraction (humus) adsorbs and holds nutrients in a plant-available form.hapter 1. Introduction. On the basis of organic matter content, soils are characterized as mineral or organic. Mineral soils form most of the worlds cultivated land and may contain from a trace to 30 percent organic matter.
The patient may be admitted to hospital in order that the medical team can observe the tightness of the cast and the pressure on the leg. The usual healing time for a mid-shaft Tibia and Fibula fracture treated with cast immobilisation is 12 to 16 weeks.
There are a number of different types of injury to the fibula bone. 1  For the purpose of this discussion, I will divide them into more manageable topics: 2  Fibula fractures that occur as a result of injury to the ankle joint. 3  Fibula fractures that occur in conjunction with tibia fractures. 4  Stress fractures of the fibula.