Greenhouse radish
Different from ultrasonic heat counters,The Smart Heat Meters are used
for heat and cold energy calculation through the water. The smart Heat Meters
can display the accumulated heat, flow rate, instant flow rate, inlet water temperature,
outlet water temperature, temperature difference and etc.
The smart heat meter
is suitable for measuring the heat exchange, known as the heat transfer fluid
or liquid absorbing thermal energy conversion equipment, which consists of a
flow sensor, temperature sensor and heat calculator(heat meter counters) three parts. The smart heat
meters are also known as smart energy meters.
The smart heat meter is
used to measure and display the water flow through the heat exchange system
release or absorb heat. The smart heat meters are installed at the inlet pipe
or outlet pipe to measure accurate metering and intelligent control of charges
of the heat consumption. Its working principle is to install the smart heat meters
in the heat exchange system, when water flows through the system, according to
the supply and return water flow temperature, from the data from the flow
sensors and temperature sensor as well as the water flow time, the smart heat meter
will calculate the released and absorbed energy through the calculator.
Smart Heat Meters Smart Heat Meters,Ultrasonic Smart Meters,Mechanical Smart Meters,Heat Meter Counters,Ultrasonic Heat Counters Berggruen Technology Co.,Ltd , https://www.meter-technology.com
After the garden has been pulled out, the garden should be ploughed in time, and the base fertilizer should be used in combination with the land. Generally, about 5000-6000 kilograms of chicken manure is applied per mu, and 80-100 kilograms of compound fertilizer is appropriate. Then the land was flattened and ridden.
Fuxia radish should be planted with very early winter, strong, heat-resistant, difficult to twitch extremely early green radish varieties, such as San Fu, Xia Kang, He Feng, Shuanghong 1, and so on. Before sowing, seeds should be treated with 800-1200 grams per acre. Method is to use soaking in 50 °C warm water for 20 minutes or 500 times 600 times of agricultural streptomycin water, soak 2 hours, remove and drain the excess water, do not germination, direct seeding with sand.
When planting, two rows are drilled on the top of each ridge. The spacing between these two rows is 15-20 centimeters. The spacing between ridges and ridges is 45-50 centimeters. When sowing, it is ditched at the ridge roof and the depth is 1.5 centimeters. Kettle along the ditch water, and then sow seeds in the ditch, acres of sowing amount of about 1,000 grams, and then cover the soil, timely watering, can be used to cast water ditch ridge method, to the amount of water to wet the ridge is appropriate.
After sowing, the temperature in the shed should be controlled. Generally, the temperature in the shed should be controlled at 24-28°C during the day and 12-14°C at night. After emergence, shading nets shall be used to shade and spray cold water in time to prevent seedlings from losing water and wilt under strong light. After the seedlings are planted for the first time, the seedlings are once again between the three leaves and one heart. The distance between the seedlings should be determined according to the variety. Generally, the plant spacing is 25-30 cm and 7000-8000 strains are planted in the mu. Radish into the expansion period, timely watering and fertilization, top dressing can be flushed with water, generally every time per mu to flush 15-20 kg of compound fertilizer is appropriate, the entire growth period should be flushing 2-3 times.
Fuxia radish in the daily management, it is necessary to cultivating loose soil ridge, pay attention to promptly pick up the old leaves, yellow leaves, timely harvest.
Diseases of Fusha radish are mainly caused by soft rot, melasma and virus diseases. The main pests are radish, whiteflies, cabbage caterpillars, and beet armyworm. When the disease starts, soft rot and black spot occur. 72% of agricultural streptomycin can be used 3000 times or DT500 times to control; virus disease can be used to control the virus A500 times more than 300 times the ningnanmycin control. For the above pests, 3% of acetamiprid can be used to control 1500 times and 10% of imidacloprid WP.