Interplanting mode is not uncommon in rural areas. Interplanting can not only improve the income of farmers' friends but also make full use of the land. Today we mainly talk about the model of vegetable interplanting and the precautions. Farmers who want to interplant can learn more.
First, the principle of interplanting
1. Reasonable combination of long growing period and short growing period. For example, melons and solanaceous vegetables have long growing seasons. They can be used to make short vegetables in the growing period, such as Chinese cabbage, radish, leeks, etc. These vegetables can be harvested in a short period of time without affecting the growth of melons and solanaceous vegetables.
2. It is necessary to select seeding, planting and vegetables that are close to the harvest period for interplanting, so as to facilitate uniform farming and field management, and timely vacillation.
3. The two types of vegetable plants should be different in height, so as to be ventilated and ventilated, and make full use of light energy, such as cucumber intercropping broccoli or cabbage.
4. The application of nutrition and root distribution required for intercropped vegetable varieties should be different, so that it is convenient to make full use of the ground force, such as intercropping of corn, the root of cowpea is deep, the demand for nitrogen fertilizer is small, and the root of corn is shallow, and there is a large demand for nitrogen fertilizer. Make the best use of land resources.
5. A harvest is combined with successively harvested vegetables. Such as tomatoes in the spring radish, eggplant in the spinach and so on.
6. Hi-light and shade-tolerant vegetables should be combined. For example, cabbage is suitable for cold and moisture-resistant environments, so it can be interplanted with cantaloupe vegetables.
Second, the matters needing attention
First of all, the same kind of vegetables in the same family are susceptible to the same pests and diseases, so it is not appropriate to intercropping; the second is that the planting density is limited to the growth of the main cooking, that is to say, the vegetables should not affect the growth and development of the main vegetables; The symbiosis between the vegetables and the intercropping and the management of the field should be taken into consideration. When there is a contradiction between the two, the main dish should be the main dish, and the vegetables should be removed or stopped in time.
Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone
Orthopedic external fixation system
The screw orthopedic is inserted into the bone near the fracture, and the fracture is fixed with an external fixator assembled by a chuck and a nail rod.
Indications
open fracture, nonunion, closed fracture with extensive soft tissue injury, fracture with multiple trauma, osteotomy and correction.
The use of orthopaedic external fixators is currently a superior fracture fixation technique, filling the gap between cast and internal fixation. At the same time, orthopedic external fixator has the characteristics of simple fixation method, stable, reliable and effective, and does not limit the joint movement, can be early ambulation advantages. It can reduce the time for the operator and is more friendly to the user. The external fixator was used together with the bone traction needle. In terms of the classification of orthopedic external fixators, it is mainly divided into four types: orthofix type external fixation, ilizarov type external fixation, ao synthes type external fixation,combined external fixator and common external fixators.
The external fixators in orthopaedics was used for reduction (shortening and overlapping displacement were corrected first, then lateral and angular displacement were corrected, and finally rotational and separation displacement were corrected; If closed reduction is difficult, open reduction can be considered, but the separation of soft tissue and peeling of periosteum should be minimized.
The selection of the insertion site.According to the anatomical characteristics of the soft tissue at the insertion plane, the important nerves, vessels and tendons should be avoided; The ideal entry point is the part of the bone close to the subcutaneous, in a word, generally choose the skin and bone between the muscle soft tissue is the weakest point into the needle. The installation shall facilitate observation and control of soft tissue damage, and permit any surgery that may be required, such as repair and reconstruction, dressing change, skin grafting, or bone grafting." According to the location of the bone, different diameters of the threaded needle were selected. Removal was performed after completion of late treatment.
Orthopedic External Fixator,Orthopedic Fixator,External Fixation,External Fixator
Jiangsu Aomed Ortho Medical Technology Co.,Ltd , https://www.aomedortho.com