In the process of cultivation of Coprinus comatus, a kind of highly competitive bacteria often occurs. Because its fruit body resembles chicken feet, it is called the chicken claw mushroom. C. oligosporus often occurs in the middle and late stages of the coprinus comatus mushrooming stage. Light causes a decrease in yield, and heavy causes two or three mushroom failures. To prevent the harm of chicken claw bacteria should take the following measures.
Treatment of culture materials currently uses more fermented material to cultivate Coprinus comatus, and the culture materials should be fully exposed before use.
Culture material Fermentation Mix the culture material according to the formula and adjust the moisture content to 65% to 70%. Material pile width 12 ~ 1.5 meters, 0.8 ~ 1 meters high, the length is not limited, cover film insulation moisture. When the center temperature of the culture medium rises to 65-70°C, it is turned and the medium is turned to both sides. The outside culture medium is turned to the middle, and the temperature rises again to 65-70°C and the pile is turned again. Generally, the pile is turned over. ~ 2 times. After the end of the fermentation, the water content of the culture material was readjusted to 60% to 65%, and the pH value was 7.5 to 8.
The adoption of crop rotation for rotation can reduce pest damage. If the cochineal mushroom is bred in spring and autumn, it will cause great development of the chicken claw.
Cover soil should be selected soil without cultivation of Coprinus comatus, preferably less than 20 cm deep soil. After covering the soil, add 1% lime powder, spray 5 to 10 kg of formaldehyde 1000 times for every 100 kg of soil, and use the plastic film for tightness; stuffy for 24 hours.
Before processing the bed with good fungus coprinus comatus sticks, carefully clean the bed surface, spray the bed surface and four walls with lime water, and spray 90% crystal trichlorfon 1000 times to prevent the underground pests.
After the pesticides prevent and control the occurrence of the chicken claw fungus, the mixed bacteria are removed together with the following culture medium and brought out of the shed. Simultaneously, the quicklime is sprayed around the harmful bacteria and sprayed with 50% carbendazim wettable powder 700-800 times or 75% chlorothalonil wettable powder 500-700 times.
A Viscometer (also called viscosimeter) is an instrument used to measure the viscosity of a fluid. For liquids with viscosities which vary with flow conditions, an instrument called a rheometer is used. Thus, a rheometer can be considered as a special type of viscometer.[1] Viscometers only measure under one flow condition.
In general, either the fluid remains stationary and an object moves through it, or the object is stationary and the fluid moves past it. The drag caused by relative motion of the fluid and a surface is a measure of the viscosity. The flow conditions must have a sufficiently small value of Reynolds number for there to be laminar flow.
At 20 °C, the dynamic viscosity (kinematic viscosity × density) of water is 1.0038 mPa·s and its kinematic viscosity (product of flow time × factor) is 1.0022 mm2/s. These values are used for calibrating certain types of viscometers.
Viscometer
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