The heart of the vegetables turns yellow. Except for the phytotoxicity and the use of hormones, most of them are caused by the lack of trace elements, and the deficiency is mostly iron deficiency and zinc. The reason for the deficiency is due to malabsorption of root injury, especially in the case of low winter temperatures and increased adverse environment. The cause of root injury is not only caused by cloudy days, but also caused by watering and fertilizing, such as water and fertilizer roots or sudden watering and rooting. If the vegetable heart leaves turn yellow due to the above reasons, how can we improve it? Linyi Fertilizer Network Copyright
Linyi Fertilizer Network Copyright
First increase the ground temperature. After watering, the ground temperature must first be raised. The temperature of the greenhouse can be increased by 2 ° C ~ 3 ° C than usual, the shed temperature can be maintained at 29 ° C ~ 33 ° C during the day, and controlled at 16 ° C at night. If the temperature is lower than 13 °C when pulling in the morning, measures should be taken to thicken the straw curtain and cover the insulation and floating film. In addition, covering straw, rice bran, etc. in the operation line is also a good way to ensure constant ground temperature. Linyi Fertilizer Network Copyright
Linyi Fertilizer Network Copyright
Secondly, watering attention, time and weather. Because the water temperature in winter is low, pouring large water is likely to cause a rapid drop in temperature, and it is easy to cause capillary root damage, so pay attention to pouring small water. The watering time should be reasonable. It should not be watered when the shed temperature is high. Generally, before 10:00 am, the shed temperature should be increased by 2 °C~3 °C on the second day after watering to promote the temperature rise. Also look at the weather watering, try not to water the water on cloudy days, watch the weather forecast before watering to avoid cloudy days after watering. Linyi Fertilizer Network Copyright
Linyi Fertilizer Network Copyright
Increase the fertilizer for rooting and rooting again. Rooting and rooting fertilizers such as chitin and biological bacteria can not only promote the growth and development of roots, but also improve soil structure, improve root growth environment and enhance root resistance. Pepper roots are weak and difficult to regenerate, and more attention should be paid to application. In the usual topdressing, the antibacterial 968 per acre, the 25 kg of the Dayuan No. 1 biological fertilizer or the roots can significantly enhance the adaptability of the roots of the vegetables and enhance their resistance to cold and disease. Linyi Fertilizer Network Copyright
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Solar Warning Light No external power supply, no wiring, simple and convenient installation, no pollution. Let the side of the battery panel face the side with the sun during the day, which is conducive to the use of solar power generation and storage to play a warning role. At night, the warning lights are attached to the building On, turn on the power switch. This will serve as a warning at night. When it is used on the car, it can be placed in the rear window or absorbed at the rear of the car. This helps to absorb the sun. .
Features and advantages:
1.Solar-powered, no cables required, providing clean lighting energy anytime, anywhere;
2.Using lithium iron phosphate battery? Long-term, high energy, environmental protection? Maintenance-free for more than five years;
3.Super bright LED light source.
4.Integrated circuit management design, providing 3 pre-programmed flashing modes, and ensuring automatic fast charging in daylight and cloudy weather
5.Polycarbonate recessed shell? Durable, waterproof and dustproof.
Precautions:
1. Avoid dark and humid places to extend battery life.
2. Keep the lamp in a place with enough sunlight to store energy. It is best not to charge the battery once every 3 months when not in use to avoid damaging the battery
3. Turn off the switch during charging to extend the life of the battery.
4. Avoid dropping the lamp from a high place to protect the internal circuit from damage.
5. If the light is dimmed? It is best to charge in time to ensure sufficient charging time to extend battery life
Use range:
Building warnings, faulty car warnings, various warning fields.
Solar Warning Light
Solar Power Flash,Solar Power Flash Warning Light,Solar Strobe Lights,Solar Traffic Warning Light
Jieyang Xinxin Industry and Trade Co., Ltd. , https://www.gdxxgm.com
