These lamps effciently emit ultraviolet rays at 315nm-400nm,which have strong photochemical fluorescent effects.they are special deep blue filter glass which absorb visible rays and transmits .there are two types of hosphor are used with radiation peak at 352nm and 368nm,respectvely.
Application:used for tests,insections,examinations,stage illumination in theaters and
nightc lub ,advertisements and sign boards.
We have T5,T8,T9,T10,T12 ,and can do 5w/7w/9w/11w/13w/18w/24w/36w/55w
Black Light Blue Lamps (BLB) have shape, structural, and electrical characteristics similar to general fluorescent lamps used for illumination. They also have similar lighting circuits.
Therefore, ballasts and glow starters used for general fluorescent lamps can be used for black light blue lamps (BLB) of this type.
1 Total amount of the ultraviolet rays between 300nm and 400nm.
2 When the ultraviolet ray output becomes 60% of the initial output (after 100 hours of lighting).
Black Light Blue Lamp, Black Light Blue Fluorescent Lamps Ningbo Sunfine UV lighting Co.,ltd. , http://www.uvlightings.com
1, the type of medicine. Different types of pesticides have different levels of harm to different plants. For example, organochlorine insecticides are prone to phytotoxicity to melons, and trichlorfon, dichlorvos and other organophosphorus pesticides are prone to phytotoxicity to sorghum.
2, the dosage form and the use concentration of the medicine. In general, different dosage forms of pesticides have different possibilities for phytotoxicity, which is usually oil> EC> wettable powder> powder> milk powder> granules. Regardless of the type of formulation, if the processing quality is poor, such as oil, cream, etc., stratification, WP agglomeration, low suspension rate, and powder flocculation will increase the possibility of drug damage. The higher the use concentration of pesticides, the easier it is to produce phytotoxicity.
3, the use of pesticides. The use of pesticides varies greatly, and accidental injury can result. Due to the improper use of drugs caused by the situation are mainly the following:
(1) Misuse of pesticides. As pesticide labels are unclear or wrongly recorded or as herbicides are considered to be acceptable, severe phytotoxicity is often caused. The use of herbicides as pesticides, or the use of monocotyledonous crop herbicides in dicotyledon crop fields, etc., can cause severe phytotoxicity and even outbreaks.
(2) Mismixed pesticides. Improper mixing of two or more pesticides is also prone to injury. If Bordeaux mixture and lime sulfur cannot be used together, they should also be used at intervals. Substitution of urea herbicides with phosphate insecticides can severely injure cotton seedlings.
(3) The water quality used for diluting pesticides has different effects on the physicochemical properties of pesticides, and sometimes increases phytotoxicity. If hard water is used to dilute EC pesticides, it is easy to produce demulsification phenomenon, resulting in poor emulsification performance, uneven spraying, and easy to cause injury.
(4) Secondary injury. The pesticides used in the season remain in the growing period of the crops under the crops, causing phytotoxicity to sensitive crops in the lower jaw. For example, use of Atrazine in corn fields will cause phytotoxicity to crops such as soybeans or wheat.
(5) Residual phytotoxicity. Due to the continuous and single use of certain pesticides with a high degree of persistence, they will produce phytotoxicity on sensitive crops as they accumulate year after year.
(6) Drifting injury. When using pesticides, the flying of particles or droplets will cause phytotoxicity to the sensitive crops around them. For example, when spraying 2,4-D-butyl butyl ester in a wheat field, it will cause harm to the nearby soybean fields, or cause sicm harm to the surrounding high-polishing fields when spraying dichlorvos.
(7) Insufficient nebulizer cleaning, sprayers that have been sprayed with 2,4-D-butyl ester. If the cleaning is not completed and then applied to the cotton field, residual 2,4-D-butyl ester can cause injury to cotton seedlings.
4, plant species and varieties. Different types and varieties of plants have different susceptibility to pharmaceuticals. If sorghum is sensitive to trichlorfon and dichlorvos, copper preparations can perforate peach leaves. Dicotyledonous plants such as cotton, soybeans, and melons are sensitive to 2,4-D-butyl ester herbicides, because such herbicides are safe for monocots such as wheat and cannot be used for dicotyledons. When using herbicides, special attention should be paid to the types of crops to which different types of herbicides are applied and the types of sensitive crops to avoid blind use.
5, the plant's different growth period of the pharmaceutical sensitivity is also different, generally speaking, the plant in the seedling stage, flowering, booting stage is more sensitive, easy to produce phytotoxicity, should not spray. For example, after wheat is sprayed on joints, spraying with paraquat and 2,4-dibutyl butyl ester, corn sprayed with 2,4-D butyl ester after 6 leaves are likely to cause phytotoxicity. When using herbicides, it should be noted that pre-emergent herbicides applied to some soils are prone to phytotoxicity to young shoots or seedlings, and post-emergence application is not recommended. Plants with more waxy or fluffy leaves can impede the penetration of chemicals and are less prone to phytotoxicity.
6. Influence of environmental factors on pesticides. In general, the temperature rises, and the efficacy of pesticides increases, but the injury is also often enhanced. Therefore, spraying at high temperatures should not be used, especially in hot weather, do not apply pesticides at high temperatures at noon, not only to reduce or avoid phytotoxicity, but also to prevent pesticide poisoning. High humidity is also conducive to the penetration of pharmaceuticals into the plants, but also easy to cause injury, so spraying in the rainy weather may cause injury. Strong sun exposure is also prone to phytotoxicity. Soil properties have significant effects on the efficacy of herbicides and the emergence of phytotoxicity. Easy to leaching herbicide application in the light soil should strictly control the dosage. For example, the use of Atrazine in soil with low organic matter content in North China
Black Light Blue Lamps(BLB)
Causes of Crop Damage
There are many causes of plant injury caused by crop injury. However, they can be summed up in three aspects: pharmacy, plant, and environment.