Guanyin, also known as blood-sucking vegetables, is a vegetable with high nutritional value, which is popular among consumers. So, how is Guanyin? The following are the cultivation techniques of Guanyin.

1. Soil and environment selection

Guanyin is extremely resistant to stress, resistant to inferiority, easy to cultivate, and has fewer pests and diseases. It can be cultivated all year round. Since the dish is mainly for supermarkets, hotels, restaurants, the requirements for products are relatively high. The production base requires the selection of fresh air, pure water, uninfected soil, and a place with good ecological conditions. At the same time, the soil layer is required to be deep. The field with high organic matter content and strong water storage and fertilizer retention capacity is beneficial to harvest and harvest.

2, cutting propagation

Because the Guanyin vegetable section is prone to adventitious roots, it is usually possible to use cutting propagation, which is suitable for spring and autumn, and is beneficial to rooting. Within 3-7 days after cutting, cover with sunshade during the day, which is beneficial for moisturizing, rooting and early living. Usually, you should pour less and pour water. Spray carbendazim once every 3-5 days, the concentration is 600 times, generally root transplanting can be carried out after 20 days.

3, Guanyin vegetable base fertilizer

Guanyin is generally cultivated mainly in protected areas, and has a long growing period. Therefore, it is necessary to apply sufficient base fertilizer before transplanting. Generally, 1500kg-2000kg of organic fertilizer per mus, 50kg of BB or compound fertilizer, 5kg of urea, and superphosphate. 40kg, then ploughed into the ground for sputum.

4, timely planting, reasonable close planting

When the Guanyin dish is inserted for 20 days, when the new root is about 10cm long, it is suitable for transplanting. Before transplanting, you must pour the bottom of the water and transplant it with medicine. At the time of planting, each row is 4 rows, the row spacing is 40cm, the plant spacing is 35cm, and 3000-3200 plants are planted per acre. After planting, add 600 times of carbendazim to the root water, then cover the soil.

5, Guanyin vegetable field management

After the blood stasis is planted, the water is poured once in time to promote the slow seedling. After the seedlings are slowed down, water is poured once more. When the fleshy roots are as thick as about 1 cm, they should be watered in time to keep the soil moist. 15-20 days after planting, apply once a fertilizer, 15-20 kg per mu of compound fertilizer. Remove weeds in time. 7-10 days after slow seedling spraying, 1-2 times of borax solution with a concentration of 0.1-0.2% is sprayed, and the spraying amount per acre is 50-75 kg. The bloody vegetables are exposed to winter and cultivated. If the winter is covered with plastic film or arched film, it can be harvested early. Planted in the summer and early autumn, there must be rain and shelter.

6. Guanyin disease and pest control

The resistance of blood-sucking vegetables is very strong, and there are very few serious pests and diseases, and occasionally aphids, it is necessary to prevent and control in time.

7, harvested and listed

Generally, 5-7 weeks after planting (80-90 days after sowing cultivation), harvesting begins when the fleshy roots are thicker (horizontal diameter) 3.5 cm or more, and are gradually supplied to the market. The average yield per mu is 1500-2000 kg, and the high yield can reach more than 2500 kg.

what is the Pipe Fan?

Pipe fan selection control parameters for the air volume, total pressure, efficiency, noise, motor power and so on. Depending on the physical and chemical properties of the gas being transported, fans of different uses are selected.

Features

1. Pipe fan selection control parameters for the air volume, total pressure, efficiency, noise, motor power and so on.

2. According to the physical and chemical properties of the gas being transported, select the fan for different purposes. Such as the delivery of clean air, should choose a general fan; transport flammable and explosive gases, explosion-proof fan should be selected; corrosive gas transmission, corrosion-resistant fan should be used.

3. Ventilator selection, should consider the leakage of piping system losses, calculation errors, and the actual fan fan, the negative pressure deviation, the general use of air flow 1.05 ~ 1.1, wind pressure of 1.10 to 1.15 safety factor. However, it is neither too large nor too large to prevent the fan from operating in an area of low efficiency for a long time.

4. Pay attention to the matching characteristics of the pipe network resistance characteristics and fan characteristics. In order for the ventilator to operate stably, the ventilator should be operated near its maximum efficiency point. The operating point of the ventilator is located on the right side of the full pressure peak point in the performance curve (ie, on the gales side and generally at 80% of the full pressure peak) ).

5. For ventilation systems with muffler requirements, fans with high efficiency and low impeller circumferential speed should be selected first and operate near the highest efficiency point. Should also be based on the ventilation system noise and vibration propagation, take the appropriate noise reduction and damping measures.

6. Pipe fan is through the blade shape changes, the air flow into the fan, the existing part of the axial flow, but also produce part of the centrifugal effect, so its performance is between the axial flow fan and Centrifugal Fan.

7. Piping ventilator can provide medium pressure and moderate air flow, ventilation system used in high-rise civil buildings are more appropriate.

Installation points

1) The natural frequency of the basic device shall not be greater than 1/3 of the motor and fan speed;

2) The difference between the vibration speed when the ventilator is running and the vibration speed when the ventilator is stationary should be more than 3 times.

2. Ventilator inlet and outlet connections between the duct should be set flexible joints. Into the air duct, air duct and other devices should be a separate support, and by the foundation or other components of the firm support firm, the chassis should not bear the weight of other parts.

3. Fan installed in the building components, should take measures to isolate vibration.

4. Fan installation can refer to the following national building standard design atlas.

5. Pipe fan can be installed in the straight pipe, with easy to take over, taking up the advantages of smaller space.

Pipe Fan

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