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Yulin Jia simple ground floor quality business

发布时间: 2019-12-29 17:36:25 发布人: 庞经理 字体大小: 【大】 【中】 【小】 Article source: hpdpsgdjg Release time: 2019-12-29 17:36:25 Posted by: Manager Pang Font size: [Big] [Medium] [Small]

There are two main types of high-quality merchants' reserved seed production types in Yulin Jia's simple field-planting greenhouses: they are mainly reserved for spring sour-melon seed production, and their stubble methods include winter seedlings → spring reserved seeds → autumn cultivation of celery and cabbage; Species are mainly self-incompatible and incompatible species collected in winter and spring, and seedlings are cultivated in summer and solan-cucurbit vegetables are cultivated in autumn. Greenhouse cultivation of several forms of vegetables In open field cultivation, it is planted from late March to mid-April, and harvested from early May to July. Greenhouse cultivation can be planted in advance from January to March, and harvested from late March to July. Early to market, higher yield, longer flowering and fruiting period, and obvious economic benefits. In addition, according to market needs, Yulin Jia simply planted in the greenhouse, sowing early green leafy vegetables such as amaranth, agaric, and water spinach, and brought it to the morning market. Quality Assurance Yulinjia Low-Humidity Greenhouse is the renewal of the greenhouse. In fact, this is a huge greenhouse. The original single room and the original single room are connected by scientific means, reasonable design and materials. Or it can be understood as an expansion. However, how to reduce the humidity in a multi-span greenhouse? Today I will talk about this topic with you: ventilation, ventilation, dehumidification. Ventilation is a good way to reduce humidity. Ventilation must be performed at high temperatures, otherwise the indoor temperature of the multi-span greenhouse will drop. If the temperature drops too fast during ventilation, the vent should be closed in time to prevent the sudden drop in temperature from causing harm to the vegetables. The quotation form chooses a place where the sun is sunny, sheltered from wind, high dryness, drainage is good, and there is no soil contamination. A full range of Kunming shade net plastic woven wire mesh. Commonly used are black and silver gray, and there are several density specifications, the shading rate is different. It is mainly used for shading and rainproof in summer, and can also be used as heat insulation cover in winter. Advantages of quality shading management: shade nets cannot be covered on the scaffold for a long time, especially black shade nets. Only in the summer and autumn sun and sunny noon will the near-saturated light intensity be reached under the net. Good cover at 10-11 am, afternoon Open at 4-5. 3-4 days before the net is opened, the net covering time should be shortened gradually to make the seedlings and plants gradually adapt to the open field environment. Yulinjia simple planting greenhouses for high-quality business plastic greenhouses in northern areas: mainly in the early spring and postponed autumn thermal insulation cultivation, 30-50 days earlier in spring, 20-25 days later in autumn, wintering cultivation can not be carried out. In the southern region: In addition to the heat preservation of vegetables and flowers and wintering cultivation (leafy vegetables) in the winter and spring seasons, it can also be replaced with a awning for shading and cooling, rain, wind, and hail protection in the summer and autumn. The quality risk area is vast and the climate is complex. The plastic greenhouses for the cultivation of vegetables and flowers have a special important role in alleviating the contradiction between the supply and demand of vegetables in the off-season, which has significant benefits and huge economic benefits. Professionalism is king

Yulin Jia simple ground floor quality business


In addition, high-quality merchants in Yulinjia simple ground inserting sheds. In addition, multi-story sheds and the use of different building materials also have a great impact on the light exposure (Table 4-2-. The soil near the sides of the sheds, due to the moisture infiltration outside the shed, In addition, the humidity of the flowing water on the shed film is relatively large. The middle part of the shed is relatively dry. Cucumbers and eggplants planted in the shed in spring are especially cultivated with plastic film. The soil moisture often affects the quality due to lack of water. It is good to lay hose drip irrigation belts. Applying fertilizer water at any time according to actual needs is an effective yield increase measure. Due to the long-term covering of the greenhouse, the lack of rainwater leaching, and the movement of salt from the bottom to the top with the water, it is easy to induce excessive salt accumulation in the tillage layer, resulting in salinization. Therefore, attention should be paid Appropriate deep ploughing, applying organic fertilizers, and avoiding long-term application of fertilizers containing chloride ions or root ions. As can be seen from the table, the greenhouse with a single steel and hard plastic structure receives better light, which only reduces the light transmittance by 28% compared to the open field. Multi-story sheds have poor light receiving conditions. Therefore, when the materials used for building sheds can withstand a fixed load, light materials should be used as much as possible and the structure should be simplified, which can not affect the light reception. It should be rugged, economical and practical. Table 4-2-3 Different types of light-shedding structure Light-shedding type Greenhouse light transmission (lux) (transmittance) (%) Single steel structure Single bamboo-wood structure Single hard plastic structure Reinforced cement exposed field control 67656599 7 0 6 5 7 9 5 3 100 During the covering period, the film will greatly reduce the light transmittance due to dust pollution. After using the new film for two days, the dust pollution can reduce the light transmittance by 5%. After 10 days Reduced by 25%, and reduced by less than 28% after half a month. In general, dust transmission can reduce the light transmittance by 10-20%. In severe pollution, the amount of light received in the shed is only 7%, which makes it unusable. It also easily absorbs water vapor, condenses into water droplets on the film, and reduces the light transmittance of the film by 10-30%. Therefore, it is important to prevent film pollution and prevent water droplets from condensing. In addition, during use of the film, due to high temperature and low temperature And it is affected by sunlight and ultraviolet rays, which makes the film "aging". After the film is aged, the light transmittance is reduced by 20-40%, and even loses its use value. Therefore, the film covered by the greenhouse should be temperature-resistant, anti-aging, dust-free and long-life film. To increase The shed receives light, warms and prolongs the use period. The span of the shed is 6-12 meters, the length is 30-60 meters, the shoulder height is 15 meters, and the ridge height is 8-5 meters. Columns are established every 2 meters in the direction of the shed width (span). The column is 6-8 cm thick, with an arch at the top and a buried depth of 50 cm. Bricks or tied crossbars are tamped, and the bamboo piece (rod) is fixed at the top of the column to form an arch, with crossbars embedded and compacted at both ends; arch The distance between the frames is 1 meter, and they are connected by longitudinal rods to form a whole; the arch is covered with a film, and the ends of the stretched membrane are buried in the soil around the arch. Its advantages are convenient material acquisition, low cost, and easy construction. The disadvantages are that there are many columns in the shed, high shading rate, inconvenient operation, short life, and poor snow and snow resistance. Steel structures mainly include: greenhouse load-bearing structures and ensuring structural stability Support, connectors, sturdy pieces, etc. Performance of solar greenhouse The light transmittance of energy-saving solar greenhouse is generally above 60% ~ 80%, and the temperature difference between indoor and outdoor can be maintained above 21 ~ 25 ℃. Yulinjia multifunctional longevity film is made by adding appropriate amount of anti-aging material and surfactant during polyethylene blow molding. The good multi-functional film of Zhejiang Xinguang Plastic Factory has a width of 5 meters and a thickness of 0.06 mm. Its service life is twice as long as that of ordinary films. The night shed temperature is 1-2 ° C higher than other materials. Moreover, the film is not easy to form water droplets, the covering effect is good, the cost is low, and the benefit is high. There are many strong winds in the spring of the quality assurance. The wind outlet should pay attention to wind protection and increase the density of the wind protection rope. The wind protection rope should use a wide cloth with high friction. When the film is fixed with a cloth strip, the friction force is large, and the loose knot is not easy to be loosened by the strong wind. Many vegetable farmers can easily use nylon ropes as windproof ropes. Due to the low friction, vegetable farmers should appropriately increase the density of nylon windproof ropes and fix them to prevent wind from blowing out of the air outlet. At the same time, vegetable farmers should pay attention to wind protection at all times to prevent the ventilation rope from loosening and the air outlets from being closed. In addition, multi-story sheds and the use of different building materials also have a great impact on light reception (Table 4-2-. The soil near the two sides of the shed, because more water penetrates outside the shed, plus the water droplets on the shed film The flowing humidity is relatively large. The middle part of the shed is relatively dry. Cucumbers and eggplants grown in greenhouses in spring are especially cultivated with plastic film. The soil moisture often affects the quality due to insufficient water. It is good to lay hose drip irrigation belts and apply fertilizer at any time according to actual needs. An effective yield increase measure. Due to the long-term coverage of the greenhouse, the lack of rainwater leaching, salt movement with water from bottom to top, it is easy to induce excessive salt accumulation in the soil of the tillage layer, resulting in salinization. Therefore, it is necessary to pay attention to proper deep cultivation, apply organic fertilizer, and avoid Long-term application of fertilizers containing chloride ions or root ions. As can be seen from the table, the Yulinjia elliptical tube greenhouse has better light reception in a single steel and hard plastic structure greenhouse, which only reduces the light transmittance by 28% compared to the open field. The light receiving conditions of the shed are poor. Therefore, when the material used to build the shed can withstand a fixed load, light materials should be used as much as possible and the structure should be simplified, which should not affect the light reception and protect it. Table 4-2-3 Light-receiving amount of different shed-type structures Greenhouse type Light transmission amount Lux (10,000) Light transmittance (%) Single steel structure Single bamboo-wood structure Single hard plastic structure Multi-steel reinforcing bar Cement exposure control 67656599 7 0 6 5 7 9 5 3 100 During the covering period, the film will greatly reduce the light transmittance due to dust contamination. After two days of using the new film, the dust contamination can reduce the light transmittance by 5%. After 10 days it will decrease 25 %, Lower than 28% after half a month. Under normal circumstances, the light transmittance can be reduced by 10-20% due to dust staining. In severe pollution, the amount of light received in the shed is only 7%, which makes it impossible to use. Adsorb water vapor and condense into water droplets on the film, reducing the light transmittance of the film by 10-30%. Therefore, it is important to prevent film contamination and prevent water droplets from condensing. In addition, during use of the film, due to high temperature, low temperature and high temperature. The effect of sunlight and ultraviolet rays makes the film "aging". After the film is aged, the light transmittance is reduced by 20-40%, and even loses its use value. Therefore, the film covered by the greenhouse should use a temperature-resistant, anti-aging, dust-free and long-life film. Enhance the shed , Increase temperature, extend the use period. Integrity-based Shaoguan "slope protection". After leveling the "back roof" soil layer, cover the back wall with a whole new plastic film. Then, cover the plastic film with a cover layer Non-woven fabrics and other sunscreen materials can ensure that the "slope protection" period is more than 4 years, and at the same time, it can prevent weeds and prevent the spread of insects and diseases, especially viral diseases. Pull the steel wire from east to west to fix it, or fill the soil with a woven bag and cover it once every 1 meter. Yulin Jia simple ground inserting high-quality commercial houses () Light conditions The new plastic film has a light transmittance of 80-90 %, But during use, the light transmittance is reduced by 10-30% due to dust pollution, absorption of water droplets, and aging of the film. The lighting conditions in the greenhouse are affected by seasons, weather conditions, and cover methods (shed structure, orientation, scale Size, etc.), the type of film and the degree of use of old and new, etc., and there are great differences. The larger the shed, the greater the difference in vertical irradiance in the shed, and the irradiance difference between the upper floor and the ground in the shed is 20-30%. In the winter and spring season, the lighting conditions of the greenhouse extended from east to west are better. It is better than that extended from north to south, and the local lighting conditions are almost the same. However, the irradiance on the north and south sides of the extended greenhouse can be 10-20%. Different shed-type structures have a great influence on the light in the shed. Although the double-layer film cover has better thermal insulation performance, the light-receiving conditions can be reduced by about half compared to the single-layer film-covered shed. In addition, multi-story greenhouses and the use of different building materials also have a great impact on light reception (Table 4-2-. As can be seen from the table, single-steel and hard plastic structure greenhouses receive better light, only The light transmittance is reduced by 28% compared to the open field. The light receiving conditions of the multi-story shed are poor. Therefore, when the material used to build the shed can withstand a fixed load, light materials should be used as much as possible and the structure should be simplified, which should not affect the light reception. It must also be protected and sturdy, economical and practical. Table 4-2-3 Different types of light-shedding structure Light-shedding type Greenhouse light transmission (lux) (transmittance) (%) Single steel structure Single bamboo-wood structure Single hard plastic structure Multi-layer reinforced concrete exposed field control 67656599 7 0 6 5 7 9 5 3 100 During the covering period, the film will greatly reduce the light transmittance due to dust pollution. After two days of using the new film, the dust pollution can reduce the light transmittance by 5%. After 10 days It will be reduced by 25% and below 28% after half a month. In general, dust transmission can reduce the light transmittance by 10-20%. In severe pollution, the amount of light received in the shed is only 7%, which makes it unusable. The film also easily absorbs water vapor and condenses into water on the film Reduce the light transmittance of the film by 10-30%. Therefore, it is an important measure to prevent the film from contaminating and condensing water droplets. In addition, during the use of the film, due to the high temperature, low temperature and the influence of sunlight UV, the film "aging" ". After the film is aged, the light transmittance decreases by 20-40%, and even loses its use value. Therefore, the film covered by the greenhouse should be selected to be temperature-resistant, anti-aging, dust-removing and long-life film to enhance the light, temperature and prolonged use in the greenhouse. Market trend () The area of the greenhouse is comprehensively considered from factors such as light, temperature, water, fertilizer, gas, and seedling protection. The area of a single-type greenhouse in the southern region is more favorable to 400 square meters. The "North" (Northeast, North China, Northwest) area is suitable for 600.800 square meters. Multi-story greenhouses are less used, and the effect is not good, which is mainly not conducive to the regulation of various cultivation environmental factors. High quality and low price

Yulin Jia simple ground floor quality business


In addition to high-stem vegetables such as melons and eggplants, leafy vegetable cultivation greenhouses in Yulin Jia ’s simple field greenhouses can also cultivate leafy vegetables with higher economic value, such as agaric, water spinach, celery, lettuce, etc. Cultivate in advance, postponed autumn, and overwintering to achieve the purposes of avoiding frost damage, promoting growth, increasing yield and extending supply, and marketing in off-season, with good economic benefits. Leafy vegetables that are warm and heat-resistant, such as agaric and convolvulus, can be sown in September-October, followed by thermal insulation in the later stage, marketed in advance, and conventional cultivation. Lettuce and other cold-loving but less frost-resistant vegetables are suitable for sowing in the open field from late August to early September and spring to March-April. If they are sown from November to March the following year, they will be cultivated in greenhouses. The framework of a high-quality greenhouse is mainly a kind of greenhouse covered with plastic film, such as tie rods, pressure bars, columns, and arches made of greenhouse materials. This shape is an arch-shaped plastic greenhouse. It is very large, the effect of absorbing heat is also very good, it is convenient to build, and the cost of building one is very low. This kind of greenhouse has become a widely used tool for planting products in rural areas. Safety requirements configuration: ventilation and cooling system, interior and exterior shading system, auxiliary lighting system, heating system, irrigation system, automation system and other greenhouses. Main materials: hot-dip galvanized steel skeleton seed construction cost is low, durable vegetable greenhouses, width 9 meters ** 18 Meter. The support is a cement column and the frame is a galvanized steel pipe. The roof is curved and covered with plastic film. It can be used to grow flowers, vegetables, seedlings, etc. this season. It can also be used to raise chickens and ducks. Arch sheds have poor thermal insulation at night in winter. In winter, mulch or mulch can be installed in the shed in northern areas to increase night temperature. Shading management: The shade net cannot be covered on the scaffold for a long time, especially the black shade net. Only in the summer and autumn sun and sunny noon will the near-saturated light intensity be reached under the net. Good cover from 10 am-11pm, 4-pm Open at 5 o'clock. 3-4 days before the net is opened, the net covering time should be shortened gradually to make the seedlings and plants gradually adapt to the open field environment. Greenhouse function classification According to the end-use function of the greenhouse, it can be divided into good-quality greenhouses, experimental (educational) greenhouses, and commercial greenhouses that allow public access. Vegetable cultivation greenhouses, flower cultivation greenhouses, breeding greenhouses, etc. are all good greenhouses; artificial climate rooms, greenhouse laboratories, etc. are experimental (education) greenhouses; various ornamental greenhouses, retail greenhouses, and commodity wholesale greenhouses are commercial greenhouses. . Recommended hot-dip galvanized steel pipe for structure: Hot-dip galvanized steel pipe is an alloy layer formed by the reaction of hot-dip galvanized steel pipe for greenhouse construction with iron-based, thus combining iron-based and film coating machine. Tianjin Feilong Steel Pipe's limited supply of hot-dip galvanized steel pipe is first pickled. In order to remove iron oxide on the surface of the pipeline, after pickling, the pipeline is washed in an ammonium chloride or zinc chloride aqueous solution tank or a mixed aqueous solution of ammonium chloride and zinc chloride, and then sent to a hot dip bath. Hot-dip galvanizing has the advantages of uniform coating, strong adhesion and long service life. The hot-dip galvanized steel pipe substrate and the plating solution undergo complex physical and chemical reactions to form a zinc-iron alloy layer with a tight corrosion-resistant structure. The alloy layer is melted into a pure zinc layer and a steel pipe matrix. Therefore, it has strong corrosion resistance. The direction of the shed is that the shed heads are on the north and south sides, respectively. This orientation allows the crops in the greenhouse to be evenly distributed.

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