Cucumber "ragged" cause

Inappropriate use of chicken manure as a base fertilizer can lead to root damage. Some greenhouses experienced root burning due to the presence of flaming alkali in the manure. Additionally, over-application of chemical fertilizers can also cause root burn. After some cucumber plants were damaged, the seedlings began to grow unevenly. To manage this issue, it is recommended to use well-composted organic fertilizers and apply them early in the planting process. Proper fertilization is essential, and during the growth period of cucumbers, it's beneficial to flush the soil with biological bacterial fertilizers such as Jianzhibao or the Haozhen series of organic products. Uneven ground levels in the greenhouse can lead to inconsistent water distribution. In higher areas, the soil tends to be drier, while lower areas may become overly wet. Moreover, many farmers apply fertilizers during watering, which can further exacerbate uneven plant growth. To address this, it's important to level the ground properly and use small, controlled watering techniques to ensure all seedlings receive an equal amount of water. Additionally, excessive water accumulation should be avoided in the greenhouse to prevent root suffocation, which can also lead to uneven growth. Root-knot nematodes are a common problem in greenhouses. These pests affect the roots differently, causing varying degrees of damage. This inconsistency can result in uneven cucumber growth. A recommended control method is to irrigate the roots with a 1.8% abamectin solution diluted between 2000 to 3000 times, applying approximately 200 ml per plant. During planting, it's not uncommon for seedlings of different sizes to appear. This often happens when vegetable farmers grow extra seedlings as a backup. However, if serious diseases occur at the seedling stage, the available spare seedlings may not be sufficient, and using weak or unhealthy ones can lead to uneven growth. To avoid this, it's important to plant evenly sized seedlings. Spraying a diluted solution of Harvest No. 1 (800 times) can help promote more uniform growth among the cucumber plants.

Orthopedic External Fixator

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.

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