Occurrence and control of damping-off seedlings

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Seedling damping-off disease occurs in all parts of the country. It damages the seedlings of various flower seedlings and can cause seedling death. Symptoms: Seeds or young shoots are rotted when they are not unearthed, and they are rotted at the seedling stage. Water-infested patches appear on the base of the surface or under the surface of the stem. The diseased part is yellow-brown and curled. It can spread to the upper and lower parts of the plant. shape. The disease develops rapidly and the tissue disintegrates. The young stems are wilting and lodging, but the leaves are green in the short term. If the environment is wet, white cottony moulds will grow on the soil surface of the diseased part and nearby areas. Cause: The pathogen is some of the fungi in the genus Pythium. Common are Pythium aphanidermatum and Pythium debari. The minimum temperature for the growth of both Pythium species is 5 to 6°C, the optimum temperature is 26 to 28°C, and the maximum temperature is 36 to 37°C. High humidity is highly susceptible to morbidity, and is more prone to saprophytic diseases. It can rot in the soil for 4 years. Pythium is a soil inhabiting bacteria that produces long-term rot in the soil and forms oospores to pass through undesired environments. It is a soil-borne disease, mainly oospores in the soil, mycelium in the soil, or other organic matter. On the rot, mixed in the compost during winter, the germs are mainly spread by water and human horticultural operations. Incidence conditions: High humidity is the main condition for the onset of seedlings. In the Yangtze River basin in China, there is plum rain in May and June, which is conducive to the growth and spread of germs, but it is not conducive to the growth of seedlings, resulting in the decline of disease resistance of seedlings and aggravation of the disease. In addition, the lack of sunlight, continuous cropping, improper choice of nurseries (such as low-lying earth, heavy earth, once occurred damping-off, and no thorough disinfection), poor quality of soil preparation, application of compost with mixed pathogens that have not been decomposed by high temperature, sowing Improper collection can lead to morbidity. Prevention: 1, the election. Select a higher terrain, drainage is better, non-sticky, disease-free or mildly ill nursery, do not use old bed soil. 2, fine soil preparation, deep plowing, application of net fertilizer. 3, soil disinfection. Formalin fumigation, that is, three weeks prior to sowing, the surface of the pines was loosened, and 360-milliliter formalin solution was used to add 9 to 27 kg of water per square meter of soil on the nursery soil (the amount of water added may vary depending on whether the soil is wet or dry). After evenly spraying the diluted drug solution, cover it with plastic film, remove the film after covering it for one week, and loosen the soil to allow the drug to evaporate completely. At least two weeks after sowing, the seeds can be sown. 4, suitable for sowing. Under possible conditions, it should try to avoid the low temperature period, and it is better to avoid the rainy season one month after the seedlings sprout. 5, pharmaceuticals. In the early stage of disease, the diseased seedlings were first removed and then concentrated. Then, 70% thiophanate-methyl wettable powder 1000 times or 25% benzone 800-1000 times, or 1:1: 120-170 Bordeaux mixture was sprayed on the seedling base. Can also be used to plant ash, lime (8:2) after mixing sprinkled at the base of the seedlings.

The Alternating Pressure Mattress System has 22 bladders for optimum pressure relief and a static function to allow treatment of the patient. Soft/ firm dial to obtain custom patient comfort levels. Ideal for those with history of breakdown or past skin issues. For the treatment or prevention of decubitis ulcers.


  • Unique construction allows for efficient air flow throughout overlay for use in the prevention and treatment of pressure ulcers
  • Two adapters for easy filling and deflation
  • Emergency air release valve deflates overlay quickly and safely
  • Air flow holes reduce heat and moisture build up
  • Adjustable bed straps prevent overlay from moving
  • Easy to clean with mild detergent
  • Electric or Manual pumps sold separately
  • Overall Product Height: 7cm
  • Overall Product Length: 200cm
  • Overall Product Width: 90cm
  • Primary Product Color: blue
  • Primary Product Material: High quality Nylon and medical grade PVC
  • Product Weight Capacity: 135KG


Alternating Pressure

Alternating pressure devices typically utilize multiple bladders to facilitate routine patient turning. These devices may also assist the nursing staff to move the patient to change bedding and move the patient out of bed.

Low Air Loss

Low air loss devices are typically powered with blowers that run continuously. Air is allowed to escape through the device in specific areas designed to provide further comfort and treatment of the patient. The blower maintains constant air pressure and inflation of the device.

Static Overlay Mattresses

Static overlay mattresses are filled with a specific volume of air once prior to use. These devices are often used for the prevention and treatment of pressure ulcers (bed sores).


Product description

The device comes with all the necesary features for efficient decubitus prevention. It consists of

fewseparate elements. No tools are required for assembly. Devices are supplied in carton boxes,
detached in to few elements for easier transportation:
1 Pump
1 Mattress Pad

Anti-Decubitus Mattress Without Toilet

Anti-Decubitus Mattress Without Toilet,Durable Air Mattress,Alternating Pressure Mattress,Hospital Air Mattress

Shijiazhuang Laien Medical Devices Co., Ltd , http://www.laien-healthcare.com