After the growth of cotton plants enters the flowering and boll stage, the water absorption and nutrients in the above ground cannot be supplied because the absorption ability of the root system is weakened. Therefore, the vegetative growth of the aerial parts of cotton was limited. In particular, when the cotton plant enters the flowering stage and the growth center shifts to the reproductive organs such as the Leiyue Bell, the reproductive organs such as Leiling Bell also compete with the vegetative organs for the organic nutrients produced by the leaves, which further inhibits the vegetative growth. At this time, the cotton plant has a certain number of cotton bolls in the middle and lower parts. The upper cotton plant may have the phenomenon of top-bottomed, hard-edged, red stem to the top, thin and yellow leaves and other nutrient growth recession. This is the so-called premature aging of cotton in production.
The premature decay of cotton plants caused the upper fruit branches of the plants to be unable to stretch, the buds were small and yellow, and the flowers had weaker bells and increased shedding, which seriously affected cotton yield. In order to promote high yield in cotton fields and prevent the premature decline of cotton plants, the following measures can be taken to prevent them: strengthen fertilizer and water management. The shortage of fertilizer and water is the main cause of premature aging of cotton. Water is the life of cotton. Fertilizer is the strength of cotton. According to the condition of the seedlings, the weather, and the condition, before replanting the flowers and bells, the cotton fields with moderate fertility should be guaranteed 15 kg of urea per mu. Apply top dressing fertilizer again, and resist drought promptly, promote fertilizer with water, and ensure that fertilizer effect is played in time.
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