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Posterior Spinal Internal Fixation include Pedicle Screw,Cage,rod,crosslink
Used in posterior spine.
It's Spinal Fixator.
Posterior Spinal Internal Fixation Posterior Spinal Internal Fixation,Spinal Fixator Shandong Hangwei Orthopedics Medcial Instrument Co., Ltd. , https://www.hangweimedical.com
At present, stem rot occurs in the papaya planting area due to frequent rain, high temperature and humidity. It is understood that in the papaya-producing areas such as Maoming, the damage degree of stem rot in recent years is only second to viral mosaic disease.
First, the symptoms and characteristics of stalk rot Papaya stalk rot mainly damage the root and neck, nursery period, planting period and pull dwarfing can be susceptible, especially high temperature and wet, more susceptible to disease. At the beginning of the disease, water-stained spots appeared on the stems, then gradually expanded into plaques, gradually turned brown and rotted, and finally the plants wilted and died. The disease is affected by poor drainage, heavy soil, heavy rain, and excessively planted plants. Germs are mainly transmitted by flowing water.
Second, pathogenic stalk rot is Fusarium. The pathogenic bacteria live in the soil and become the source of infection in the second year by flowing water.
Third, control methods
1. It is necessary to choose convenient drainage, can directly irrigate or use a gentle slope or flat land with sprayed water jets as a construction site for papaya, and deep plunge more than 30 cm above the plot, so that the soil can be naturally weathered and the source of disease can be reduced.
2, appropriate shallow species, reduce the coverage of the soil on the stem, not to cover the nutrient soil over the seedlings is appropriate.
3. Clear the drainage ditch immediately after planting to avoid accumulation of water after the rain and reduce the chance of spreading water.
4. Avoid continuous cropping with vegetable fields or gourd crops.
5. Drug treatment: When the diseased plant is found, the soil in the neck of the diseased plant is opened, and the infected cortex and tissue are scraped with a sterilized bamboo or knife, and then one of the following drug formulations is used: Apply the diseased area and irrigate the roots until the wound does not dry.
1 anti-virus + Park Hyukine + agricultural even alanine each 100-200 times liquid.
2 Carbendazim 200 times liquid and 50% lime water to use.
3 Ledomil + agricultural leucomycin + Wanling powder 200 times each.
6, after the restoration of the power to restore the plant, because the wound is easy to break, use 1.2-1.5 meters of bamboo support reinforcement.
Current papaya must prevent stem rot
Papaya stalk rot, commonly known as bad head disease, is a common fungal disease. It mainly harms the roots and necks of plants and occurs at the junction between the trunk and the ground. It can occur throughout the year. It is hot and rainy from April to September each year. The disease is most likely to be infected in the season, or within one month after the plant is pulled and dwarfed.
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