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.
Fractures of the lower end of the tibia and fibula are covered in ankle fractures. Fractures of the upper end of the tibia are covered in knee fractures.The tibia bone is the largest and most important bone of the lower leg. It is quite vulnerable to injury.n the case of an isolated fracture of the fibula you may be able to walk, but with nearly all other fractures it is impossible to bear weight. Within a few minutes of the injury the leg will swell up. If there have been injuries to the nerves or arteries the foot may be numb or cold.