1. Pay attention to the environment when taking drugs. The environment for spraying is very important. It is very important to choose the right time!
Choose no wind, no rainy days. Windy may cause damage to crops in the downwind, while rain may reduce the efficacy of the crop or cause phytotoxicity to the crop. Secondly, attention should be paid to the surrounding crop types. Because herbicides are highly targeted, such as herbicides used in grass crops, they may cause damage to the surrounding broad-leaved crops. Due to the different types of herbicides, the distance of the medicines is different when they are used. Some highly volatile herbicides can drift more than 500 meters. Third, pay attention to the temperature when using the drug. Some herbicides may cause damage to certain crops at lower temperatures. Some herbicides may cause harm to certain crops at higher temperatures. Special attention should be paid to the specific use.
2. Pay attention to the period of medication, choose the right period of medication to achieve the desired effect
Herbicides are divided into two treatment methods: one is stem and leaf treatment, and the other is soil treatment. Herbicides used in soil treatment should never be used for stem and leaf treatment, and herbicides used for stem and leaf treatment should pay strict attention to the time of administration. For example, the use of herbicides in the jointing stage of wheat and the use of butachlor in the early stage of direct seeding rice fields may cause serious damage.
3. Pay attention to the dosage, only the correct amount can achieve the corresponding effect.
The amount of the drug directly affects the herbicidal effect, and the dosage must be appropriate. The general specification has a range of dosage. Under normal circumstances, when the crop grows vigorously and the soil fertility is good, the dosage can be applied according to the upper limit of the dosage of the manual, that is, the dosage is larger; the crop growth is thin, the loam is sandy and the fertility is low. The dosage should be close to the lower limit of the dosage to avoid phytotoxicity.
4. Pay attention to the selection of varieties and alternate medication
Herbicides are highly targeted to weeds and should be selected based on the type of major weeds in the field. Herbicides and pesticides as pesticides, long-term use of the same herbicide resistant weeds will reduce the effect of weeding. Therefore, after using a herbicide for a period of time, another herbicide is replaced, and different varieties are used alternately, and the herbicidal effect is better.
5. Pay attention to pesticide residues
Due to the strong selectivity of herbicides, herbicides used on broad-leaved crops have residues that can cause damage to gramineous crops and vice versa. Therefore, the crop types in the upper and lower seasons are different, so the use of herbicides in the last season should be paid special attention to the dosage and time of use. For those crops with long residual time and sensitive to such herbicides in the next season, the last season crop should be minimized. Dosage and early medication to reduce the damage to the next season crops. In addition, farmers are accustomed to using the same sprayer to spray a variety of pesticides, which may cause phytotoxicity to herbicides, such as sprayers that have just sprayed herbicides that kill broadleaf weeds, and are not used for thorough cleaning. Soybeans may be tainted by spraying broad-leaf plants with insecticides . Therefore, all sprayers that have been sprayed with herbicides must be thoroughly cleaned after use for later use.
The details for the Solar traffic sign:
Product performance: It adopts solar power supply, green and environmental protection, working voltage is DC12V,
Product structure: model size and displayed graphic effects can be determined according to customer needs. Provide customized processing.
Mainly used for urban roads. Using Taiwan Epistar chip lamp beads, LED+lens arrangement, ultra-high brightness, concentrated light, very large viewing angle, and good visual effects.
The shell is aluminum, which is fully enclosed, all-weather, weatherproof, and has good oxidation resistance. The equipment will not fade or rust during the use period.
Reflective film: 3M reflective film is attached to the front of the product to enhance the visual effect. At night, no LED is used to emit light. When it is illuminated or car lampshade, it can be seen very clearly at a long distance, which enhances the driver`s viewing distance
Low power consumption: LED products have low power consumption, and the company thinks of being more low-carbon, environmentally friendly and energy-saving in design;
Brightness balance: Equipped with balanced current circuit and specially designed optical components, the light is particularly uniform;
Strict aging: The aging is verified 24 hours before the product is shipped, and the performance is more superior!
Waterproof test: Before the product leaves the factory, it needs to go through a wet test to test its waterproof effect. It must be completely waterproof before shipment!
Protection level: IP53 (in line with the technical standard of the national traffic standard GB14887-2003)
Shenzhen Wide Way Optoelectronics Co., Ltd., a provider and manufacturer of high-quality our traffic lights!
Traffic Guidance Sign,Solar Traffic Guidance Sign,Solar Guidance Sign,led Guidance Sign
Shenzhen Wide Way Optoelectronics Co., Ltd. , https://www.wdmtrafficlight.com