Experts in the prevention and control of pests and diseases said that after the fall of autumn, corn is vulnerable to drill-type pests such as armyworms and corn borers. These pests will directly damage the corncob, which will cause the corn to die slowly. The height of corn in this period has already been almost one person high, so it is more troublesome to fight drugs by hand. If you use a drugs fight, you can achieve twice the result with half the effort.
Preventing the lodging of corn, if it falls, has a very large impact on its production. There are several main preventive measures. The first is to cultivate the soil and increase the number of supporting roots, so that the lodging resistance can be improved. Secondly, the potassium dihydrogen phosphate is applied to the page based on the application of potassium fertilizer. The toughness of the plants is greatly enhanced. At this time, if it is really encountering storms and other attacks that are difficult to confront, if there is a lodging, it is necessary to take active remedial measures, such as artificially raising the soil or cultivating the soil to restore itself.
Artificial pollination continues in high temperature days in summer, which affects the pollination of corn. This results in a low rate of corn cob seeding, so artificial pollination is necessary for this situation.
Corn in the drought-preventing and sorghum-grain period has a high demand for water. If water is scarce, it will affect the formation of the grain or the fruit is not full, and the yield will naturally decrease. Therefore, when the dry weather continues to occur, it is necessary to fill the water in time.
If the appropriate late harvest does not affect the second planting, the corn harvest period can be appropriately postponed, which will increase the grain yield of the corn kernels and increase the yield. So when the corn glutinous leaves become dry and loose, the grain begins to harden and appears golden yellow. When the grain milk line is completely invisible, the corn is in the ripening period, and the harvest is the highest. At the same time, the appropriate late harvest of corn is high in quality and the protein and amino acid content will increase.
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When installing security Outdoor Camera, you should first choose the monitoring host. Do you want to add a monitoring card to your computer, or do you want to use an embedded hard disk recorder as your monitoring host. The computer monitoring card is more suitable for places that are familiar with computer installation, have professional personnel on duty, and have more functional requirements. Its overall investment is relatively low. Since the monitoring card is installed in the computer, the computer needs to be started 24 hours a day; As for the latter, it does not require professional knowledge, nor does it need to be on duty, and it is relatively simple to operate.
To install security monitoring equipment, it is necessary to determine how many cameras are installed, and the quality and monitoring range of the cameras are affected. It is preferred to determine how many cameras are used for monitoring, and then determine the camera lens monitoring range according to how many cameras are available. Therefore, the distance from the camera to the monitoring point and the monitoring area must be clear. The infrared supply network recommends using the camera of 480 TV line, because it is more in line with that definition.
When installing security monitoring equipment, the third consideration is whether the camera has night vision function. If the monitoring is installed in a dark place, it is necessary to consider using a camera with infrared night vision function.
The security monitoring equipment can be installed via wired or wireless transmission. Although the cost of wireless network is relatively high, it can save a lot of installation trouble and make the monitoring site more beautiful. However, the installation of wireless network monitoring equipment should take into account the environmental problems of security sites. Cement building materials will shorten the wireless transmission distance, and metal building materials may complete the shielding of wireless signals. The infrared transmitter and infrared receiver should be far away from other appliances to avoid interference. Because the price of wireless network is almost twice that of wired transmission monitoring equipment, I suggest using wired transmission installation.
On site monitoring and network monitoring When determining the installation of the monitoring system, you should consider whether you need network functions. That is, if you need to monitor and control the monitoring site on the Internet at any time, you need to select a monitoring host with network functions. Avoid no network transmission function after installation.
A complete security monitoring equipment should at least have three parts: surveillance camera, PTZ and decoder. The following are their installation methods:
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