Rice chemical weeding

With the large output of rural labor, although artificial weeding is ecologically friendly, it is labor intensive and inefficient. Chemical weeding has become the main measure for weeding rice fields. Although it is labor-saving, time-saving and efficient, if it is not done properly, it will not be able to weed. The effect can also cause phytotoxicity. Rice field weeding should not only achieve the desired effect but also be environmentally safe.

　　

First, Tianping shallow water, do not be uneven. When you are pears, you should put Tian Yuping, you can't oversize it, avoid the dry water in the field after planting, and some deep water. When the medicine is applied, the liquid is infiltrated into the low place, and the concentration in the low concave area is too large, causing phytotoxicity. There is no effect at the height.

　　

Second, keep the water within 10 days after application , do not dry water or water too deep . After applying water, the herbicide can not be effectively decomposed and spread. When the water is too deep, the medicine will adhere to the loquat leaves in a large amount, causing the leaves to burn.

　　

Third, it must be applied strictly according to the prescribed dosage, and should not be increased or decreased at will. At present, the new herbicides are popular, the dosage is small, the drug effect is strong, and the dosage is lower than the prescribed dosage, the effect is poor, and the drug dosage is higher than the prescribed dosage, which leads to the purchase of disasters.

　　

Fourth, apply dew after drying, do not use dew to spread the medicine. The herbicides used now do not need to be mixed with sand or fertilizer, and can be directly applied. The dew is not dry, and it will be suspended in the loquat leaves in a large amount, and cannot fall into the field effectively, failing to achieve good herbicidal effect, and may cause phytotoxicity.

　　

Five empty medicine bottles or cassettes are off the field, don't litter. Bottles or boxes after medicinal use should be taken away in a garbage bin and disposed of in a centralized manner. Do not throw them into the fields or trenches to reduce the damage of organic chlorine and water pollution.

 

(Source: Tengchong County Seed Management Station Author: Fujin Fang)

 

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The blade of a cutter knife is very sharp, and there are several parallel scribe lines on its blade. Because it is usually used to cut wallpaper, it is also called a "wallpaper cutter". Cutter knife is usually used in the decoration and advertising plaque industry. The biggest feature of the cutter knife is that it can be easy to replace the segmented blades. You can fold off the unsharp section of blade when using it, so the sharpness can be maintained without sharpening the blade frequently.

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