Nowadays, there are quite a lot of orchards in rural areas in China. There are often fruit farmers complaining that their own fruit trees often deciduously drop fruit, and the yield is not high. In fact, this is also related to the orchard soil compaction. It is well known that fruit trees need fertile soil for growth, but once the soil in the orchard appears to be knotted, it is very easy to cause fruit falling. 1. Long-term single application of fertilizer Long-term application of chemical fertilizers in the fertilization process, without the application of organic fertilizers, will lead to a continuous decline in soil organic matter content, humus can not be replenished, causing soil compaction and cracking. At this time, the main cause of soil compaction in the orchard is that nitrogen fertilizer can promote plant growth, phosphate fertilizer can promote root development, and potassium fertilizer can promote yield increase, so many fruit farmers apply them at the same time. This will seriously damage the soil aggregate structure, affect the activity of microorganisms, lead to the formation of soil aggregate structure, resulting in soil compaction. 2. The soil texture is too sticky The soil of the orchard is too sticky, and the clay has a high content of clay. In addition, the tillage layer is shallow, the capillary pores in the soil are less, and the ventilation, water permeability and temperature increase are poor. After raining or watering, it is easy. Blocking the pores, so it is easy to cause soil surface crust, which is the soil compaction. 3. Insufficient organic matter content The organic matter in the soil is not replenished in time, and the soil organic matter content is low, which will lead to structural deterioration and affect the activity of microorganisms, thus affecting the formation of soil aggregate structure, causing the soil acidity and alkalinity to be too large or too small, resulting in soil plate. 4. Farming operations cause damage to soil structure Because in the cultivation of mechanical tillage, the soil aggregate structure is destroyed, and only a small part of the fertilizer applied every year is detailed by the fruit trees. Most of the fertilizer is fixed by the soil, resulting in a large amount of acid deposits and soil compaction. 5. Accumulation of harmful substances, soil erosion In some areas, groundwater and industrial wastewater contain a large amount of toxic substances. Some fruit farmers use these waters for a long time. Over time, excessive accumulation of toxic substances in the soil will cause soil compaction. In addition, in the case of sandstorms and heavy rains, the fine soil particles in the topsoil are taken away, causing the soil structure to be destroyed and causing soil compaction. In summary, it is the reason for the soil compaction in the orchard. It is because of these reasons that everyone has caused the orchard to be soiled. If it is, then change the way. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone
External fixation of the lower limb is a treatment used to fix a fracture or dislocation of the lower limb.The functions of these external fixation methods are mainly as follows.
1. Stabilize a fracture or joint dislocation.External fixators can fix the bone or joint in the correct position to prevent further displacement or dislocation,thereby promoting the healing of the fracture or joint dislocation.
2. Pain relief,external fixators can reduce pain and discomfort by fixing and supporting fractures or joint dislocations.
3. Promote fracture healing,external fixator can provide a stable environment,promote fracture healing and bone tissue regeneration.
4. Protect surrounding tissues.External fixators can protect surrounding soft tissues (such as muscles,tendons and blood vessels) from further damage and reduce the occurrence of complications.
In general,the classification and function of lower limb external fixation is mainly to stabilize and protect fractures or joint dislocation,promote healing and restore function.The specific treatment should be selected according to the patient's condition and the doctor's advice.
external fixator femur,leg fixator,Hip External Fixator,external fixation ankle Jiangsu Aomed Ortho Medical Technology Co.,Ltd , https://www.aomedortho.com