In recent years, the occurrence of root-knot nematodes in banana roots has become more serious. Root-knot nematodes endanger roots, form root knots on fine roots, and swell at the ends of thick roots. In severe cases, the epidermis rots, resulting in less roots or roots. The banana trees that are harmed by nematodes generally show yellow leaves, short plants, difficult buds, and thin fruits. Root-knot nematodes are not well-prevented, wilt disease easily infects bananas from the wound, and the consequences are serious. The following four measures can well prevent banana root-knot nematodes.
The first trick to control the drug must be adjusted according to different periods. Prior to the new banana planting, the penicillium purpureus applied a planting hole with a good effect of killing eggs to remove the nematodes and nematode eggs in the soil. When the plants are 1.0-1.5 m tall, avermectin granules registered in the nematode are applied. According to the incidence of root-knot nematodes, nematodes are treated every 45-60 days. After the onset of the drug, the fertilizer cannot be immediately applied, because the root system does not return to normal and is likely to cause damage.
For plants with severe disease, the root can be applied by using a lethal agent + alginic acid + complex microbial bacteria. Because nematodes endanger roots and kill nematodes while providing nutrients and roots, plants can recover quickly.
The second trick is good soil conditions, with appropriate fertilizer, the plant is resistant to disease. Pay attention to improving the soil environment of the banana plantation. Generally, the incidence of sandy soil is higher than that of clay soil. To control the soil moisture, apply more organic bio-fertilizer to activate the soil and apply salt-absorbing powder at the same time (commonly known as natural gypsum powder, the active ingredient is Dihydrate calcium sulfate) regulates soil pH. During the growth period, calcium and magnesium fertilizers are used to supplement calcium and magnesium and other elements, and calcium deficiency can easily cause root rot.
Also appropriate use of foliar supplements. Calcium and boron are difficult to absorb at low temperatures and should be added to the foliage. After abnormal weather conditions or injury, leaf nutrition is the fastest and most effective method.
The third measure is bananas and water, and the irrigation method is suitable for drip irrigation. The realization of water and fertilizer integration can help the absorption of the killer.
The fourth move promptly removes and isolates severely affected plants, and can choose to rotate crops such as sugar cane and rice for a wider range of diseases.
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Does the solar PTZ Camera System Kits work well
In fact, there are no network and no electricity cameras, but they have certain limitations. The working time of a camera with batteries or external solar panels is limited.Monitoring without network means that mobile phones and cameras can only be seen within a certain range of 5~10 meters.
Therefore, no network and no power is just a gimmick. We must pay attention to distinguish when buying.
Is the Solar Camera easy to use
Jiajie intelligent surveillance camera is very good
Advantages and disadvantages of solar monitoring
Probably.
Generally, offline display has the following two conditions.
One is that the installed 4G card has no traffic and cannot provide network connection for monitoring;
The other is that there is a problem with the signal receiving device, which makes it unable to connect to the network. Therefore, the user can access the APP connected to the monitor to check whether there is still traffic on the 4G card. If there is still traffic, there is a problem with the monitoring; If there is no traffic, the renewal fee can continue to be used.
Which is the best solar Outdoor Camera
It may be that the poor contact of the power plug causes power on, heating and power failure, or it may be that the camera's internal control motherboard fails, causing power on for several minutes and automatic power off protection.
The camera works continuously, and the internal chip may overheat, which also exists in many SLR cameras. Some cameras impose time limits on continuous shooting. Centralized power supply with high-power switching power supply
Disadvantages of camera solar power supply
The main advantages of solar photovoltaic power generation are:
(1) Simple structure, small and light volume;
(2) Easy to install, easy to transport, short construction period, and short time to obtain energy;
(3) It is easy to use and maintain, and can work normally in the temperature range of - 50 ℃~- 65 ℃;
(4) Safe, reliable, noiseless, pollution-free, and absolutely clean (pollution-free);
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(6) The rate of price reduction is fast, and the time for energy repayment may be shortened;
(7) It can be matched with the battery to form an independent power supply, or it can be connected to the grid for power generation.
(8) Local power generation and supply without fuel consumption and transmission lines
The main disadvantages of solar photovoltaic power generation are:
(1) Low solar energy density and large coverage area;
(2) Photovoltaic power generation is intermittent and random;
(3) Solar energy resources in various regions are not available, so photovoltaic power generation is highly regional.
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