Precautions for the use of carbendazim in the cultivation of edible fungi

First, the carbendazim sold in the market is mostly 50% wettable powder and 40% plastic suspension. No matter which type of dosage form should be used, it is necessary to pay attention to the expiration date of the product. The production date is the best within one year. If it exceeds this period, it should be increased according to the discretion, and it should be completely invalid.
Second, carbendazim has a poor control effect on Mucor and Rhizopus. When using carbendazim, the pH value of the culture material should be appropriately increased to inhibit the growth of Mucor and Rhizopus.
Because carbendazim is resistant to high temperatures, it is best to use the culture material for fermentation and high temperature sterilization to kill mold. Tremella fuciformis, fungus, and Hericium erinaceus are particularly sensitive to carbendazim and should be avoided.
3. With carbendazim mixture, the concentration of the liquid should be strictly controlled. Generally, the powder with a content of 50% can kill and inhibit the growth of the bacteria by 0.1% of the dry weight of the material; The increase in cost will also affect mycelial growth and lead to contamination of fruiting bodies. When mixing, first dissolve the agent into a sufficient amount of water and mix well. After mixing the ingredients, mix well to avoid spot contamination.
4. Carbendazim is easily decomposed and decomposed in an alkaline environment. Therefore, lime cannot be used at the same time, and carbendazim and lime mixture can not be placed for a long time.
In addition, carbendazim is easy to make bacteria resistant, so long-term use should be avoided, and other fungicides can be used alternately.
Huaxian Agricultural Technology Promotion Center Lu Shuguang

Overshot Assembly

Overshot go into the heart of the drill pipe, the slider move up, make the tube socket head can be inserted into the center, when on the slider move up tight, using friction lift drill, remove loose again after the slider, by means of the connection string to slide along the block should tighten, set aside the center pipe, but in front of the salvage must first determine the bit in the bottom of the hole position, can be in a thin plate with bolts tight end of drill pipe, Drop the drill pipe to the bottom of the hole and press it on the drill bit. After waiting for a moment, it is proposed that the relative position of the drill bit at the bottom of the hole and the center of the rotary plate of the drill can be determined by observing the indentation left by the center pipe of the drill bit on the board, and then move the drill or rotary plate so that the center of the rotary plate is directly in front of the center pipe of the injured head, so as to ensure that the fishing device can be inserted into the center pipe accurately.

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