In February, the next April harvest and the middle and early February, the use of "premature virus-free potato double-film covering" cultivation, can make the time to market of potatoes 30-40 days ahead of conventional cultivation, and large potato block, good commodity performance. General mu produce 1500-2000 kilograms of fresh potatoes. The main points of its cultivation techniques are described below. In February, the next April harvested double-film cover "Cultivated potato is cultivated in early and mid-March with "premature virus-free potato double-covered" cultivation. The time to market for the potato can be 30-40 days ahead of conventional cultivation, and the size of the potato is large. Good performance.Generally 1500-2000 kilograms of fresh potato production per mu.The main points of its cultivation techniques are as follows: First, select good seed, high temperature germination, select plant type erect, high yield and stable yield, early tuber, fast tuber enlargement, short dormancy period Precocious, easy to germinate, disease-resistant early-ripening potato varieties, generally require a variety of potato oval shape, smooth skin, yellow flesh yellow, superficial or flat buds, resistant to storage. Must be strictly seeded before sowing, screening, remove rotting Seeds, diseases, pests, etc., choose 15-25g weight, smooth, round, sweet potato for planting, spread the selected thin layer of potato seedlings in a low-light greenhouse for 25-40 days for germination , Break the seed potato dormancy, and promote the development of seed germinating buds.High temperature germination, shoots length 1-2 cm, the whole potato or diced and dried in the sun for 5-10 days, so that the young buds from light yellow to purple green. In the soil, sufficient base fertilizer is applied. Deep plowing the soil 20-30 cm.Before planting base fertilizer, the ratio of nitrogen, phosphorus and potassium needed is 5:2:11. The large size of virus-free potato seeds requires more water and nutrients after emergence, so after sowing, Apply base fertilizer, apply 1500-2000 kilograms of manure per acre, 50-75 kilograms of general-purpose compound fertilizer, directly cover the organic manure, and place compound fertilizer in the middle of two kinds of potatoes to prevent burning of roots and rotten shoots. Coverage, close planting in reasonable depth, sowing in mid-February, covering 5-8 cm thickness, 4500-5000 per acre density, 50-60 cm spacing, 20-25 cm spacing, 10 cm deep seed sowing After sowing, the soil is covered with small ridges of 5 cm in height, and then covered with a mulch to support a small arch shed with a sowing rate of 100-125 kg per mu.4. Field management, top dressing and pest control. In addition, the soil was used to compact holes and holes, and the first cultivating and weeding was conducted for the Qi Miao, and the second cultivating and soil cultivation was performed after 7 days to prevent the tubers from being exposed to green, and the third cultivating tillage was carried out from buds to the flowering stage. Fertilizer should be top-dressed, and timely irrigation should be applied after top-dressing. In the middle and budding stage, spray 50-100 ppm paclobutrazol solution or 0.1% concentration of Chlorella solution, and increase the number of cultivating times.Beginning to the beginning of flowering period should be watered with drought. , Snoring, but for the varieties of natural berry after flowering can be appropriate to pick flowers, buds.At the end of the field pay attention to field irrigation.Timely prevention and control of 28 ladybugs. In mid-May spray 0.1% concentration of tuber swelling fluid , To promote tuber expansion.Five, mature soon, timely harvest.Double-film covering cultivation of potato growth fast, early potato, generally from the end of April to early May can be harvested.
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);
(5) The advantages of building roofs can be used without the restriction of resource distribution regions; For example, areas without electricity and areas with complex terrain;
(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;
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);
(5) The advantages of building roofs can be used without the restriction of resource distribution regions; For example, areas without electricity and areas with complex terrain;
(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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