The indoor conditions in the shed are closed, and various fungal and bacterial diseases are gradually increasing. Therefore, the use of pesticides in the shed is relatively frequent, and the possibility of phytotoxicity is greatly increased. The occurrence of phytotoxicity in the shed can affect the normal growth and development of vegetables, and even cause the whole shed to pull out the garden. Therefore, the safety of pesticides used in greenhouses must be highly valued by vegetable farmers.
Focus on safe use of vegetables in greenhouses. Carefully selected: What medicines should be used for the disease? If the choice of pesticides is not right, not only can not control the disease of vegetables, but also delay the prevention and control of vegetables, which will bring difficulties to future prevention and control, and even cause phytotoxicity. Use with caution: When using pesticides in greenhouse vegetables, it is relatively safe to use according to the dosage of pesticide instructions. However, in the process of actually preventing greenhouse vegetable diseases, vegetable farmers often use a single agent to increase the dose or a combination of multiple agents, which often exceeds the prescribed dosage, which is very likely to cause phytotoxicity.
Six safes for safe use of shed vegetables. Check the quality of the pharmacy. It is easy to cause phytotoxicity after the pesticide has deteriorated. Therefore, the physical properties of pesticides must be carefully and carefully checked when purchasing pesticides or before use. Pay attention to the concentration of pesticides: When the pesticides are compounded, pay attention to the content of the active ingredients of each drug, so as to avoid the repeated concentration of the drugs, resulting in excessive concentration and phytotoxicity. Pay attention to the concentration when compounding, and do not exceed the safe use concentration range of pesticides. Mixed pesticides pay attention to each other: pesticide mixture can improve the control effect and prevention range, and can also delay the development of pest resistance. However, if the pesticide is not taken care of when mixed, it may cause the pesticide to fail or the phytotoxicity to be serious. For example, pyrethroid pesticides cannot be mixed with alkaline pesticides, and some pesticides cannot be mixed with copper preparations. Pay attention to the way and method of medication: pesticides that need to be mixed with some media, such as emulsifiable concentrates, wettable powders, etc., which need to be diluted with water or other media to be used. Therefore, it is best to use the pharmacy for the current use. It should not be placed for a long time. Spraying must be uniform, can not be repeated spray, can not be applied too much in a part of the crop; even when applied, can not be used to the original drug; rooting, fumigation should also pay attention to the quality of the application. Pay attention to the sensitivity of vegetables to drugs: in general, mature tissues are highly resistant, and young, aging tissues are weaker. Therefore, there must be a focus when spraying in the shed. Some vegetables are sensitive to certain drugs, such as eggplant, which is sensitive to chlorpyrifos. Winter melon is sensitive to thiram, and cabbage is sensitive to copper preparations. If you do not pay attention, it is likely to cause phytotoxicity. In addition, vegetables are also sensitive to pesticides when they are flowering. Therefore, it is more prudent to apply the medicine when it is flowering. Pay attention to the medication environment: high temperature, strong light before and after noon application is more likely to cause phytotoxicity; when the ventilation in the shed is strong, the liquid evaporates too fast, it is easy to aggravate the phytotoxicity; the water temperature in winter is low, may also induce drugs Harm occurs. Therefore, the application of sheds should be carried out without dew, the morning or afternoon when the light is weak, the ventilation should not be too large when spraying, and the temperature of the sprayed medicinal water should be consistent with the temperature inside the shed.
Focus on safe use of vegetables in greenhouses. Carefully selected: What medicines should be used for the disease? If the choice of pesticides is not right, not only can not control the disease of vegetables, but also delay the prevention and control of vegetables, which will bring difficulties to future prevention and control, and even cause phytotoxicity. Use with caution: When using pesticides in greenhouse vegetables, it is relatively safe to use according to the dosage of pesticide instructions. However, in the process of actually preventing greenhouse vegetable diseases, vegetable farmers often use a single agent to increase the dose or a combination of multiple agents, which often exceeds the prescribed dosage, which is very likely to cause phytotoxicity.
Six safes for safe use of shed vegetables. Check the quality of the pharmacy. It is easy to cause phytotoxicity after the pesticide has deteriorated. Therefore, the physical properties of pesticides must be carefully and carefully checked when purchasing pesticides or before use. Pay attention to the concentration of pesticides: When the pesticides are compounded, pay attention to the content of the active ingredients of each drug, so as to avoid the repeated concentration of the drugs, resulting in excessive concentration and phytotoxicity. Pay attention to the concentration when compounding, and do not exceed the safe use concentration range of pesticides. Mixed pesticides pay attention to each other: pesticide mixture can improve the control effect and prevention range, and can also delay the development of pest resistance. However, if the pesticide is not taken care of when mixed, it may cause the pesticide to fail or the phytotoxicity to be serious. For example, pyrethroid pesticides cannot be mixed with alkaline pesticides, and some pesticides cannot be mixed with copper preparations. Pay attention to the way and method of medication: pesticides that need to be mixed with some media, such as emulsifiable concentrates, wettable powders, etc., which need to be diluted with water or other media to be used. Therefore, it is best to use the pharmacy for the current use. It should not be placed for a long time. Spraying must be uniform, can not be repeated spray, can not be applied too much in a part of the crop; even when applied, can not be used to the original drug; rooting, fumigation should also pay attention to the quality of the application. Pay attention to the sensitivity of vegetables to drugs: in general, mature tissues are highly resistant, and young, aging tissues are weaker. Therefore, there must be a focus when spraying in the shed. Some vegetables are sensitive to certain drugs, such as eggplant, which is sensitive to chlorpyrifos. Winter melon is sensitive to thiram, and cabbage is sensitive to copper preparations. If you do not pay attention, it is likely to cause phytotoxicity. In addition, vegetables are also sensitive to pesticides when they are flowering. Therefore, it is more prudent to apply the medicine when it is flowering. Pay attention to the medication environment: high temperature, strong light before and after noon application is more likely to cause phytotoxicity; when the ventilation in the shed is strong, the liquid evaporates too fast, it is easy to aggravate the phytotoxicity; the water temperature in winter is low, may also induce drugs Harm occurs. Therefore, the application of sheds should be carried out without dew, the morning or afternoon when the light is weak, the ventilation should not be too large when spraying, and the temperature of the sprayed medicinal water should be consistent with the temperature inside the shed.
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The output coupler usually has reflectance in the range 40% to 70%. In order to optimize power and spatial profile of the laser beam, the output coupler and end mirror have optical surfaces with well-defined radii of curvature.Output coupler (OC) is a partially reflecting dielectric mirror used in a laser cavity. It has a function to transmit a part of intracavity optical power in order to get a lasing.
Laser output couplers often require a slightly wedged substrate to eliminate interference from multiple reflections inside the component. If you require a specific wedge value, please specify this when ordering.
Total Reflector and Output Coupler are the key optical components in the laser cavity, are a part of the laser process.
Output Couplers are commonly used as laser output coupler or beam attenuator.Laser output couplers often require a slightly wedged substrate to eliminate interference from multiple reflections inside the component
Output coupler (OC) is a partially reflecting Dielectric Mirror used in a laser cavity. It has a function to transmit a part of intracavity optical power in order to get a lasing. Output couplers listed below can be found in stable resonators, as they have a spatially constant reflection/transmission (R/T) value, which is the main property of such kind of mirror. Such cavity's parameters as pump power threshold, maximum output power and laser efficiency highly depends on R/T ratio of output coupler.
We could provide 70%R30T, 65%R35T,60%R40%T ect
Mirror And Output Coupler,Output Coupler,Optical Output Coupler,Laser Output Couplers
Changchun Ruiqi Optoelectronics Co.,Ltd , https://www.ruiqi-optics.com