The bitter buckwheat is also known as the bitter vegetable, the festival lotus root, the little bitter wheat dish, the bitter leaf seedling, the bitter wormwood, the yellow rat grass, the bitter diced cabbage, and has the effect of cooling and detoxifying and eliminating phlegm. It is concentrated in the northeast, north, east, and south China provinces; North Korea, the Soviet Union (Far East region) also. Stem of bitter buckwheat is mid-wild broad-leaved miscellaneous grass, with strong adaptability, and it is a widespread plant. Flowers, and sparse forests, usually appear in wilderness, roadsides, and farmland, and are commonly found in wheat fields. Fruit period 4 to July. First, the environment requirements bitter buckwheat vegetable adaptability to the environment, heat and cold-resistant, the suitable temperature for growth is 15 °C -20 °C, in the moist, nutrient-rich sandy loam growth. Adaptable to light, but easy to aging under strong light. Second, the soil preparation use good conditions of sandy loam soil as a cultivated field. After the harvest of the previous crop, the land was deeply turned. Combine 1500-2000 kg of organic manure and 15-20 kg of urea into the base fertilizer per acre. Fine soil preparation, making a width of about 1.5 meters flat, ready to broadcast. Third, the selection of seedbed seedbeds should be done in a place with high topography, low groundwater level, and good drainage and irrigation. It is best to choose plots or raw ground where the same kind of vegetables have not been cultivated. For example, use an old seedbed to disinfect bed soil, or use a substrate. Nursery. 4. Seed treatment Before sowing, soak seeds in warm water of 55°C for 10-15 minutes, or use 50% thiram wettable powder or 65% zein zinc wettable powder, and apply 0.3% of the seed amount. Fifth, sowing seedlings Bitter leeks generally adopt seed propagation methods. Sowing can be done in mid-April. The open field sowing can be carried out in a well-distributed bowl with a 25-30 cm line spacing and a ditch depth of 2-3 cm. The seeds are evenly spread into the ditch and the soil is sown after sowing. If the soil is dry, it can be watered in an appropriate amount, covered with straw after being watered, and it can also be covered with mulch to prevent soil compaction. Such as early spring cultivation, the temperature is low, can be used in the greenhouse for seedling transplanting. Water immediately after planting, shade on sunny days, maintain a high temperature to promote slow seedlings. 3-5 days to slow seedlings. Sixth, fertilizer and water management 1. After emergence or easing seedlings, should be appropriate to control the water to prevent seedlings leggy. When the seedling height is 5-6 cm, cultivating and weeding are performed to prevent weeds from inhibiting seedling growth. 2. After weeding, combined with watering, apply 20 kg of available nitrogen fertilizer per acre to promote seedling development. 3 bitter leeks should be properly dense planting, seedlings generally do not seedlings. Such as seedling density can be appropriate sparse seedlings, 2-3 strains of a cluster, spacing 4-6 cm, seedling height 4-6 cm when the timely tillage weeding. Every time you cut it, you must top-dress fertilizer and water.
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.
Planting bitter buckwheat in the spring saves time and money