Vegetable diseases mainly include fungi, viruses and bacterial diseases. Deficiency disease, also known as physiological disease, is the specific symptom that vegetable crops lack certain nutrients. Sometimes disease and deficiency traits are very similar in appearance, especially in the early stage of disease, which brings certain difficulties to disease prevention and control. In this case, the distinction can be made from the following three aspects. First, look at the development of the disease. Vegetable diseases are contagious. Therefore, the occurrence of disease generally has a clear center of disease, and then quickly spread to the surrounding, usually into a film, if not timely control, can cause great damage to the growth of vegetables. The lack of disease is generally not the center of disease, to disseminate as much, if you do not take remedial measures, will seriously affect the yield and quality. Second, see the relationship between illness and soil. Vegetable diseases are not particularly related to soil types and characteristics. No matter what kind of soil type, if there is a source of disease, it can occur in the field of high nitrogen fertilizer application without paying attention to the combination of phosphorus and potassium fertilizers. The occurrence of crop deficiencies is closely related to soil types and characteristics. For example, the high soil pH in the north is not easy to lack molybdenum, while the acidic soil in the south is easy to lack such elements. The plants are characterized by poor growth, short stature, whip-tailed leaves, cup-shaped leaves or yellow-leafed leaves. For some soils with different nutrient levels, some or some of the deficiency diseases can occur, while infertile soils occur frequently. Third, see the relationship between illness and the weather. Vegetable diseases generally occur frequently on cloudy days and in high humidity weather or re-emerged, and it is more likely to occur when plant groups are covered by dew. Should pay attention to observe the weather and the growing condition of the plant population, early prevention and treatment. The lack of disease has little to do with the above-ground air humidity. However, long-term water retention or drought in the soil can contribute to some of the deficiency. For example, long-term water retention in plants can lead to potassium deficiency, which is characterized by leaf scorch from bottom to top, like a fire pot. Unstable soil moisture, high and low, easily lead to calcium deficiency, leading to physiological diseases such as umbilical rot, heart rot, pseudo-black spot disease, celery stalk disease, but also affect the flower buds of fruits and vegetables in varying degrees. Differentiation.
We may usually see monitor devices in private cars, and they are called the car cameras. Today I'd like to introduce you another type of car cameras, the car cameras for vehicles with special purpose such as police cars, school buses, tanker trucks, container truck, Taxies, buses... Generally Speaking, the monitor devices used for these vehicles need to be much more stable so multiple car camers should be combined together to reach that monitor effect, then a monitor system formed, and we call this kind of monitor system the Vehicle Surveillance System(Car Security Camera System).
1. Bank Money Transport Trucks, Tanker Trucks, and other Valuables Transport Vehicles: anti-theft and anti-robbery
Vehicle Surveillance System, Car Surveillance Camera, Car CCTV Camera, Vehicle Security Camera, Vehicle Camera Systems, Car Security Camera System SHENZHEN SANAN TECHNOLOGY CO.,LTD , https://www.sanan-cctv.com
The Vehicle Surveillance System(Vehicle Security Camera Vehicle Camera Systems)(a three-layer networked comprehensive monitoring system), composed of a vehicle terminal, a transmission network, and a monitoring center, mainly provides the functions such as the vehicle anti-theft, anti-robbery, driving route monitoring, real-time wireless transmission of video images inside and outside the vehicle, rapid response to accidents, call command and so on, so that the problem of dynamic management of existing vehicles can be solved.
So what advantages of the vehicles with Vehicle Surveillance System(Car Surveillance Camera)?
2. Passenger Vehicles such as Buses, Long-distance Buses... : ticket anti-theft, passenger anti-theft and anti-robbery
3. Ambulances: patient treatment process monitoring and video recording, which can be as the evidence once the medical malpractice dispute happened
4. Police Cars, Fire Trucks: case handling process video recording, which can be as the material and evidence of the investigation after
5. Environmental Monitoring Vehicles: record the environmental pollution scene (which can be as the prosecution evidence) and transmit real-time informations to the Environmental Monitoring Center meanwhile(which can help the Environmental Monitoring Center take effective measures on the pollution source right away)
6. Trains, Steamships... : security monitoring, real-time recording
7. ...
In conclusion, Sanan Technology has been studying the Vehicle Surveillance Systems(Car CCTV Camera) for over 10 years, and the Vehicle Surveillance System has become our key product line gradually. Sanan has accumulated rich experience in various Vehicle Surveillance Systems Solutions and belive us, we are specialized!
How to distinguish between vegetable diseases and deficiency
Next Article
How to prevent vegetable garden soil aging?