Drafting of glyphosate herbicides , presumably most farmers have heard about it. Although there have been rumors that glyphosate has been introduced to the market recently, so far, no suitable alternatives have been found. I don’t want to say so much, let us Get up and understand the mechanism and application of glyphosate. 1 Grass killing mechanism of glyphosate Glyphosate is an organophosphorus systemic herbicide-killing herbicide that mainly absorbs stems and leaves of weeds, and transmits whole plants and roots, interfering with and inhibiting amino acid synthesis, thereby causing weeds to die. Glyphosate can rapidly decompose and fail in the soil, so there is no residual effect. Glyphosate has a longer duration of action, and the weeds gradually turn yellow after spraying. After 10-15 days, the weeds can completely turn yellow and die. 2 How to use glyphosate 2.1 Spraying time. Because glyphosate is a metastatic stem-and-leaf conductor, it is ineffective for unearthed weeds. Only when the weeds have more leaves and can adhere to a sufficient amount of drug, can the ideal herbicidal effect be obtained. Generally, for annual weeds, when they are basically out and there are 4 to 6 leaves, the effect of the medicine is better; for perennial weeds, the flowering period of the buds is better. At specific times, the spray effect is best when there is no dust on the weed leaves after the rain. 2.2 Dosage. It depends on the type and growth of weeds. If 10% glyphosate water is used, the grasses such as crabgrass, bluegrass, foxtail, and tendon are controlled, and the concentration is controlled at about 50 times; the grass is controlled by psyllium, mugwort, and fragrant aconite. The concentration is 40. About the liquid, control the white stalk, the thorn vegetable, the scissors stock, etc., the concentration is controlled at about 30 times. Such as 10% glyphosate water, control annual weeds, use 50 times the drug solution; control perennial weeds, use 40 times the drug solution; control small shrubs, spray with 30 times solution. Both can achieve good control effect. 2.3 Spray technology. When spraying herbicides, do “five pointsâ€. First, the spray should be even and thoughtful; second, pay attention to the weather forecast before spraying, 12 hours after spraying, no rain, otherwise it needs to be re-sprayed; third, it can not be sprayed in windy days to prevent the liquid from drifting with the wind, thus causing phytotoxicity; The fourth is to take a directional spray, you can take a low pressure nozzle or install a plastic small bowl at the nozzle to ensure a directional spray; the fifth is to pay attention to the spray time, no dew on the weeds. 2.4 Adding auxiliaries can improve the efficacy. When preparing glyphosate solution, adding 0.1% detergent powder to the total amount of water can increase the adhesion and improve the efficacy. 2.5 Use clear water for dispensing. Because glyphosate will reduce the activity when it meets the soil, it should be cleaned with clear water, and it should not be dispensed with dirty water or muddy water with mud. 2.6 For perennial malignant weeds, the number of sprays can be increased. For malignant weeds such as white mulberry and fragrant aconite, the drug is sprayed once every other month after the first application to achieve the desired control effect. Today About glyphosate use on here, pesticides want to get more knowledge, please pay attention to China Pesticide Network
Due to its wide range of uses, there are also many varieties of hook and loop sanding disc. The most commonly used are red sanding disc, yellow/gold sanding disc, green sanding disc, and white sanding disc, etc.
The sandpaper disc is using aluminum oxid abrasives, with grits as below: 40#, 60#, 80#, 120#, 180#, 240#, 320#, 400#, 600#, 800#, 1000#, 1200#, 1500#, 2000#.
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The holes best selling is with 6 hole, 8 holes, 15 holes, 17 holes or customized.
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4. Suitable for making various specifications of brushed and self-adhesive sand discs.
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