Blight is a frequent occurrence of flower seedlings, and diseased seedlings will die. The pathogens are the most common in the soil surface, and soil colonization is the main cause of the onset of bacterial blight. The soil temperature is above 20°C, and the soil is moist and sticky. When the seedlings emerge from the soil, it often happens. Seedlings unearthed about 20 days, is the most susceptible period. Rhizoctonia mostly invade from the seedling rhizomes, and the symptoms of seedlings often appear as three symptoms of decay, tripping, and standing. Before the seedlings were unearthed, the roots became yellow and rot as the temperature was too low to be infected by the bacteria. After the seedlings were unearthed, they were not lignified, and the roots or root neck became red-brown and died. The collapse of the softening zone is called damping-off; the base of the seedlings has been lignified, and the upper part of the seedlings suffer from standing and blighting. Common flower blight is a variety of pine seedlings, asters, dianthus, Tang Ge Po, jellyfish and so on.
For the prevention and control of damping-off, measures should be taken to combine cultivation management, disinfection and careful maintenance.
Soil disinfection is an important control measure. Commonly used soil disinfectants include quintozene and formalin. Pentachloronitrobenzene, made of 8 grams of pentachloronitrobenzene per square meter, covered with soil about 1 centimeter thick; 40% formalin, 50 grams plus 10 kilograms of water, watered nursery bed 1 square meter, and then used The grass cover covers 7 for 10 days. After the curtain has been deflated, it can raise seedlings.
Seedlings unearthed about 20 days, strict control of watering, adequate ventilation, is the key to prevent blight, generally seeding bed enough water before sowing, generally do not water after sowing, in order to prevent the humidity is easy to disease. After the seedlings are unearthed, 0.5% of ferrous sulfate can be sprayed; 1% of Bordeaux or 50% of Johnson's ammonium 200 times; thiophanate-2000 times of liquid to eliminate surface bacteria.
The incidence of individual seedlings was found to be immediately removed and sprayed for protection against spread.
A small amount of pot seedlings should be used in sand and new pots. Before the soil is potted, it can be exposed to dryness or pour with boiling water. This kind of soil disinfection method can also be used.
BPAP20 AUTO / BPAP25 AUTO is a professional solution for OSA patient who have trouble tolerating CPAP device.
4.3-inch TFT Color LCD Screen, Displaying A Number Of Monitored Parameters; Respiration Pressure, Flow Rate Waveform Display, Clear And Accurate; Smart Start And Stop Breathing; Multiple Alarm Functions; Intelligent Automatic Leak Compensation. The New Integrated Heated Humidifier, According To The Different Needs Of Patients, Set Up Multiple Profiles Of Temperature And Humidity, Multiple Anti-Reflux Design, Safe To Use. Built-In High-Capacity Smart Card Can Be Used For Data Recording, The Recording Time, Respiratory Status, Can Assess The Therapeutic Effect, And Print Reports.
BPAP 20 Auto,BPAP 25 Auto,Non Invasive Ventilation Hood,Non Invasive Ventilation Oxygen
Shenyang RMS MEDICAL TECH CO.,LTD , https://www.medicalrms.com