The management of lychee after fruit picking is the key to cultivating the best results in the coming year. Autumn is the main result of litchi, but not all autumn shoots can be a good result. Only in the winter before the advent of fully matured green, leafy, long branches, stout, no harm to the pests of the fall, the second year can be a flower seat fruit. At present, southern litchi has begun to mature on the market. Therefore, after the fruit is harvested in Litchi, we must seize the time and take the following effective measures to cultivate the mother tree with good results. (1) Clear Garden: Clean gardens shall be cleared in time within 10 days after the fruit is harvested in Litchi. The weeds, litter and fallen fruit in the orchard will be completely removed, and they shall be thoroughly buried or burned out of the park. (2) Fertilization: Fertilizer shall be applied in a timely manner after clearing the garden. Each plant should be given 1 kilogram of nitrogen and potassium fertilizer. After the rain, it should be applied or sprinkled with water to restore the tree vigor and promptly send autumn shoots. When the autumn shoots were just planted, the second fertilizer was applied to strengthen the autumn shoots. Apply 1.5-20 kg of nitrogen, phosphorus, and potassium fertilizers per plant, or 15-20 kg of mature organic fertilizers, dig under radial canals under the canopy, dig 4-6 trenches, and increase the length of the trench by 1 meter. 30-40 cm wide, 15-20 cm deep, covered with soil. (3) Pruning: Litchi should be pruned promptly after fruit picking. The pruning should be based on thinning, cutting the shade inside the canopy, and then cutting off the external pests, stems, branches, and branches. Damaged shoots and short cuts and fruit drop branches. (4) Top-dressing after root extraction: After fruit is harvested from Litchi, it must be sprayed with 0.1% magnesium sulfate, 0.3% urea, 0.4% potassium dihydrogen phosphate, 0.5-1PPM once every 10 days. Octane alcohol mixture, or foliar treasure or spray 10000 times liquid and so on. Spray 3-5 times in order to increase the nutritional level of the leaves and promote strong autumn shoots. (5) Covering the tree tray: After the fruit is harvested in Litchi, 150-200 kg of Shitang mud, waste fertilizer or other earth-fertilizer is planted in each tree to cover the exposed root groups. At the same time, the grass is covered with grass, and the grass thickness is about 10 centimeters, which keeps the soil of the tree tray moist. Disclaimer: Some articles in this website have been transferred from the Internet. If you are involved in third party legal rights, please inform this website. phone
What is DVR Mini Camera
Dvr, which is called DigitalVideoRecorder in full, is a digital video recorder. Compared with traditional analog video recorders, dvr uses hard disk for recording, so it is often called hard disk recorder, also called DVR. It is a set of computer system for image computing, storage and processing. It has the functions of long-time video recording, recording, remote monitoring and control of images/voice and dynamic frames. DVR integrates five functions, including video recorder, picture splitter, PTZ lens control, alarm control, and network transmission. One device can replace a large number of devices in the analog monitoring system, Moreover, it has gradually gained advantages and popularity in terms of price.
The function of DVR, with the increase of various voltage sensitive loads in the distribution network, puts forward higher requirements for power quality. However, due to system accidents in the power system, the voltage flicker, drop and other disturbances caused by the startup and shutdown of large equipment, lightning stroke and other principles are unavoidable. Moreover, in the current power grid, the ability to quickly restore power supply after power interruption is far from meeting the requirements of many sensitive loads. Therefore, it is necessary to provide users with stable and uninterrupted high-quality power when interference occurs. Dynamic voltage recovery (DVR) is the choice to solve the above problems today. DVR is connected in series to the feeder line that requires high-quality power to realize dynamic real-time voltage compensation for the line, so that the load end can get the desired high-quality power, and ensure the normal and uninterrupted operation of sensitive user equipment.
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The "digitalization" of DVR means that compression and storage technology is aimed at digital signals, rather than directly transmitting digitally encoded video images. Therefore, DVR must be deployed near the analog camera.
Management of lychee fruit picking