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List of contents for this article:
- 1、What facilities and equipment are needed for soilless cultivation of strawberries
- 2、What are the connection methods for pc pipes
- 3、What are the benefits of soilless cultivation of vegetables?
- 4、What are the benefits of soilless cultivation of vegetables
What facilities and equipment are needed for soilless cultivation of strawberries
1. During soilless cultivation, in order to supply liquid nutrition to strawberries, a liquid storage tank must be set up. If a circulating liquid supply system is used, an underground liquid storage tank should be set up at the lowest point on the ground. Usually, a liquid storage tank of 60 to 80 cubic meters needs to be set up for every 667 square meters, one for each greenhouse. Liquid storage tanks are usually located near the back wall in the middle of the greenhouse, with cement covers to prevent the growth of algae and to prevent direct sunlight into nutrient solutions. The liquid storage tank can be made of linoleum asphalt as a waterproof layer, and then built with bricks and cement.
2. Soilless cultivation of strawberries requires the following tasks: variety selection, construction of cultivation facilities, preparation of substrates, standardized planting, control of temperature and humidity, and management of fertilizer and water in turn. The details are as follows: Variety selection: In addition to early maturity, high yield, and good quality, strawberry varieties should also have strong fertilizer tolerance and short dormant period to prevent weakening growth momentum in winter. Currently commonly used varieties include Nufeng and Fengxiang.
3. Cultivation facilities There are two types of strawberry soilless cultivation tanks: bottom-dug cultivation tanks and high-ridge cultivation tanks. The bottom-dug cultivation tanks leave a 70-cm-wide corridor at the root of the back wall in the greenhouse. The cultivation tanks are dug from north to south. The tank width is 50 cm, and the depth is 25-30 cm. The length of the tank depends on the span of the greenhouse. The corridor between the tanks (the spacing between tanks) is 40 cm, and the tank walls are covered with plastic films.
4. For platform cultivation, families can build a platform soilless cultivation bed. This cultivation bed can use the space on the roof platform to provide sufficient sunshine and air circulation for strawberries. Figure 9-1 shows the specific design of the strawberry solid substrate cultivation bed on the rooftop platform, and Figure 9-2 depicts the cross-sectional view of the cultivation bed in detail, showing the internal structure and material distribution of the cultivation bed.
What are the connection methods for pc pipes
1. Common connection methods for PC pipes (polycarbonate pipes) include solvent bonded connections, threaded connections, flange connections, and quick clamp connections. Hot melt socket/butt connections can also be used in industrial high-pressure scenarios. Solvent bonded connections. Suitable scenarios: Low-pressure PC pipe systems with nominal diameters of DN15 ~ DN100, such as civil water supply and drainage and small ventilation pipelines.
2. The joint connection of PC pipes (polycarbonate pipes) needs to be selected according to the pressure, pipe diameter, and disassembly and assembly requirements. Common methods include adhesive connection, threaded connection, flange connection, and clamp connection. Adhesive connection (1) Applicable scenarios: normal temperature and low pressure scenarios with nominal diameter less than DN50 and working pressure ≤0.6MPa, such as civil threading and small water supply and drainage pipelines.
3. PC tube connection method PC tube connection is mainly carried out through the following methods: insertion method connection. Hot melt connection. Use special connecting fittings to connect. Detailed explanation: Insertion connection: This is a simple connection method, mainly suitable for small diameter PC pipes. The specific step is to insert one PC tube into the port of another PC tube, and then use a special fixture or fixing tool to fix it to ensure that the connection is tight and seamless.
4. PC pipe connections need to select suitable connection methods according to pipe diameters and operating conditions, and strictly control pretreatment, assembly, sealing and post-inspection links to avoid risks such as stress cracking and seal failure.
5. PC pipes can be connected in various ways, mainly including flange connections, socket connections and assembly splicing. Flanged connection is a method commonly used for PC pipe connection, and is especially suitable for applications requiring high connection strength and tightness. In flanged connection, flanges are installed on both ends of the PC pipe respectively, and then the two flanges are tightly fixed together by bolts, thereby realizing the connection of the pipes.
6. Selection of connection method (1) Small-diameter PC pipe (nominal outer diameter De20~De110): Priority is given to use special PC pipe for bonding and docking to adapt to daily electrical threading and low-voltage water supply and drainage scenarios;(2) Large-diameter PC pipe (De160 and above), vibration environment or scenarios with pressure pressure ≥0.6MPa: Flange-type mechanical docking is required to ensure connection strength and tightness.
What are the benefits of soilless cultivation of vegetables?
The benefits of soilless cultivation of vegetables are better, mainly reflected in the following aspects: low investment and high returns: The overall construction cost of soilless cultivation of vegetables, including plastic film greenhouses, planting troughs and nutrient solution drip irrigation systems, is relatively low, and can meet the production capacity of most farmers. By scientifically and rationally using soilless cultivation of vegetables, farmers can easily achieve low-investment and high-yield production results.
Outstanding economic benefits The yield of vegetables cultivated under soilless cultivation is usually more than twice that of traditional soil cultivation. Coupled with the product price advantage, the overall economic benefits are significant. As technology costs gradually decrease, small and medium-sized farms can also afford related equipment, further promoting output value growth. Technology continues to upgrade automated environmental control systems, LED light sources and smart irrigation equipment have been widely used, greatly improving production efficiency and crop quality.
Soilless cultivation of vegetables has the advantages of making full use of space, saving water, fertilizer and labor, clean and sanitary environment, not being restricted by soil, avoiding continuous cropping obstacles, and increasing yield. The details are as follows: Make full use of space: Soilless cultivation gets rid of the constraints of the land, not subject to space constraints.
The advantages of soilless cultivation of leafy vegetables are mainly reflected in four aspects: improved product quality, enhanced production flexibility, off-season supply guarantee and improved economic benefits. The details are as follows: the product quality is significantly better than that of soil-cultured leafy vegetables with stems and leaves as the edible part., and some varieties (such as lettuce and lettuce) need to be eaten raw, which require extremely high cleanliness, tenderness and safety.
At present, the capital Beijing and some cities have called for and fully developed roofs, platforms and balconies to build soilless gardens and vegetable gardens, plant flowers or vegetables to green urban space, improve urban environmental microclimate, and improve air quality to facilitate urban environmental protection. Therefore, the development prospects of soilless cultivation of household vegetables are good.
What are the benefits of soilless cultivation of vegetables
1. The benefits of soilless cultivation of vegetables are good, mainly reflected in the following aspects: low investment and high returns: The overall construction cost of soilless cultivation of vegetables, including plastic film greenhouses, planting troughs and nutrient solution drip irrigation systems, is relatively low., and can meet the production capacity of most farmers. By scientifically and rationally using soilless cultivation of vegetables, farmers can easily achieve low-investment and high-yield production results.
2. Outstanding economic benefits The yield of vegetables cultivated under soilless cultivation is usually more than twice that of traditional soil cultivation. Coupled with the product price advantage, the overall economic benefits are significant. As technology costs gradually decrease, small and medium-sized farms can also afford related equipment, further promoting output value growth. Technology continues to upgrade automated environmental control systems, LED light sources and smart irrigation equipment have been widely used, greatly improving production efficiency and crop quality.
3. The advantages of soilless cultivation of leafy vegetables are mainly reflected in four aspects: improvement of product quality, enhanced production flexibility, off-season supply guarantee and improvement of economic benefits. The details are as follows: The product quality is significantly better than that of soil-cultured leafy vegetables. Edible parts, and some varieties (such as lettuce and lettuce) need to be eaten raw, which have extremely high requirements for cleanliness, tenderness and safety.
4. At present, the capital Beijing and some cities have called for and fully developed rooftops, platforms and balconies to build soilless gardens and vegetable gardens, plant flowers or vegetables to green urban space, improve urban environment and microclimate, and improve air quality to benefit urban environmental protection. Therefore, the development prospects of soilless cultivation of household vegetables are good.
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