What should be done with the land of the greenhouse

The ground of the greenhouse can be treated as follows:

The cultivation area of the greenhouse is dug to the underground part, the depth of the digging is about meters, the purpose of the greenhouse to build the semi-underground type is to better heat preservation, the original greenhouse cultivation area is directly built on the flat ground, in this way, the shed body of the whole greenhouse is exposed to the outside, the area subject to the wind is relatively large, and the area of heat loss is also large, so it is not easy to keep warm.

After digging the cultivation area of the greenhouse, it is equivalent to reducing the wind area of the greenhouse body, and also reducing the area of heat loss, so that the thermal insulation effect will be better than the original greenhouse thermal insulation effect.

In addition, the excavated part of the greenhouse is connected with the surrounding earth, which is equivalent to the thickening of this part of the shed, which is more conducive to the insulation of the greenhouse. According to the measurement of scientific and technological personnel, at one o'clock in the morning, when the straw curtain is opened, the temperature in the semi-underground greenhouse is about 2 higher than the temperature of the greenhouse built on the flat ground.

There are three main ways to treat the ground of greenhouses: overall ground protection, local ground protection, and seedbed base.

The seedbed should be selected with high terrain, convenient drainage and irrigation, fertile soil, and neutral loam. The amount of seedbed foundation fertilizer should not be too much, to avoid the growth of seedlings too vigorous, generally per 100 square meters of seedbed to apply 300 kg of organic fertilizer, superphosphate 5-10 kg. Plough the rake 2-3 times, fully mix the base fertilizer and the soil evenly, and the depth of the cultivated land is about 15 cm.

Then the rake is leveled and thin, and the furrow is made into a wide meter and a length of 7-10 meters, which can be sown and raised.

1. Article 44 of the Law on the Management of Land in the Liquid Calendar stipulates that if it involves the conversion of agricultural land into construction land, the approval procedures for the conversion of agricultural land shall be handled. The construction of greenhouses on cultivated land is not considered a change of land use, and it is not considered illegal occupation, but it can only be approved by the agricultural department.

2. Approval procedures required for the construction of greenhouses.

1) Application form.

Before the construction of the greenhouse, you must apply in advance, get the application form, and fill in the content on the **.

2) Planning diagram.

When applying, you need to prepare a local land use planning map, which is to see what kind of land the land you are applying for, whether you can build a greenhouse, and if you occupy basic farmland, you can't apply.

3) Construction plan.

The applicant needs to prepare the structural drawings of the construction and have a detailed construction plan to facilitate the review of whether the cultivated layer is damaged during the construction.

4) Land use agreement.

It is necessary to sign a land use agreement with the village collective and the town-level department, and if the farmland is obtained by circulation, it is also necessary to get the circulation contract in hand at this time.

5) Location map.

The actual location of the built greenhouse needs to be marked, and the area occupied by the building needs to be marked, and the area and use of the ancillary facilities also need to be marked.

After these materials are ready, they can be submitted to the town-level department for declaration, and then they also need to be approved by the county-level department] and filed in a timely manner, so that the construction of greenhouses can be carried out. These details must not be ignored, otherwise the follow-up will be troublesome.

1. Do greenhouses need to be taxed?

Article 16 of the notice of the State Administration of Taxation on the issuance of the "Notes on the Scope of Taxation of Certain Goods of Value-added Tax" stipulates that agricultural machinery refers to all kinds of machinery and mechanized and semi-mechanized agricultural tools used in agricultural production (including forestry, animal husbandry, sideline industry, and fishery), as well as small agricultural tools. Specifically, it includes tractors, soil tillage machinery, farmland infrastructure construction machinery, planting machinery, harvesting machinery, plant protection and management machinery, field operation machinery, drainage and irrigation machinery, agricultural and sideline products processing and searching machinery, etc.

The greenhouse heating furnace used for vegetable greenhouses is not within the scope of the specified "agricultural machinery", that is, it cannot enjoy the agricultural machinery tax exemption policy stipulated in the notice of the Ministry of Finance and the State Administration of Taxation on the VAT exemption policy for certain agricultural production materials. Taxes shall be paid in accordance with the applicable tax rate (general taxpayers) or levy rate (small-scale taxpayers) stipulated in the Provisional Regulations on VAT.

Summary. Dear, I'm honored to have your question The information that the teacher found for you here is: What materials do you need to enter a greenhouse? ：

There are 1 skeleton of materials needed to enter a greenhouse: (plastic-plated steel pipe, galvanized steel pipe, bamboo and wood) bamboo and wood skeleton are available on the market, and you can buy them without going to other places, and steel pipes should be purchased from professional manufacturers. 2 Films:

There are two kinds, polyvinyl chloride and polyethylene, and there are grouting films, non-dripping films, degradable environmental protection films, multi-functional films, colored films, reflective films, and weeding films. 3 thermal insulation quilt or straw, straw is heavier after rain, it is not too convenient to put away, now most of the thermal insulation quilt is used, thermal insulation quilt is a light covering product made of textile waste, double-sided waterproof, long service time. 4 Small Accessories:

Pipe joints, top springs, connecting pieces, card slots, circlips, diagonal linings, door head rods, laminating lines, etc.

What materials do you need to enter a greenhouse?

Dear, I'm honored to have your question The information that the teacher found for you here is: What materials do you need to enter a greenhouse? : The materials needed to enter a greenhouse have 1 skeleton:

Plastic-plated steel pipes, galvanized steel pipes, bamboo and wood) bamboo and wood skeletons are available on the market, and you can buy them without going to other places, and steel pipes should be purchased from professional manufacturers. 2. Film: There are two kinds of film, polyvinyl chloride and polyethylene, and there are grouting film, non-dripping film, degradable environmental protection film, multi-functional film, colored film, reflective film, and weeding film.

3 thermal insulation quilt or straw, straw is heavier after rain, it is not too convenient to put away, now most of the thermal insulation quilt is used, thermal insulation quilt is a light covering product made of textile waste, double-sided waterproof, long service time. 4 Small accessories: pipe joints, top springs, connecting pieces, card slots, circlips, diagonal linings, door head rods, laminating lines, etc.

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1. Greenhouse insulation. The main methods are: selecting the light transmittance covering material with poor thermal conductivity, reducing the height of the greenhouse, reducing the outdoor surface area of the greenhouse, improving the installation method of the covering material, improving the airtightness of the greenhouse, adding external insulation materials outside the greenhouse, changing the structure of the greenhouse, increasing the amount of lighting, and setting up the internal insulation curtain.

2. Temperature management. The variable temperature management method is mainly adopted, that is, the temperature management method of underground heating is carried out by reducing the amount of air heating during the heating season.

3. Greenhouse heating. There are mainly hot water heating system and hot air heating system. There are also methods such as direct combustion of fuel indoors.

4. Accumulated temperature management technology. That is, the design temperature of the indoor is reduced under the condition of low outdoor temperature and high energy consumption for heating, and the heating is carried out under the condition of sufficient solar radiation during the day in order to replenish the accumulated temperature in time.

5. Greenhouse cooling. The main methods are: ventilation, shading, evaporative cooling, etc.

Finned tube radiator is suitable for use in greenhouses, finned tube radiator uses high-frequency technology to weld the steel pipe and fins of the heat transfer element together quickly and solidly to make finned tubes, arranged in a scientific arrangement method, and fixed with baffles and boxes, so that the metal strength and heat dissipation to achieve the effect, plus the shield to increase the appearance, play a decorative role, the outer shield is divided into two kinds of old mountain, one for the front outlet, one for the top outlet, each has advantages for the user to choose, the radiator according to the height, length and the difference in and out of the center distanceThere are 15 specifications and forms to meet the different needs of users.

Finned tube radiator.

What is the impact of some parameters in the finned tube of the greenhouse finned tube on the heat dissipation? Let's take a look at the specific factors that affect the heat dissipation of finned tube radiators? The impact of the contact heat resistance is very large, if the contact heat resistance is not good in the bend.

Mechanical set fins are carried out on a fin set machine. Since the fin press-in is by mechanical impact or liquid pressure, the impact on the heat dissipation will reach more than 20%, the fin height, the fin height and the fin height is increased, then the heat dissipation area will be increased, thereby increasing the heat dissipation. The radiator pipe diameter is thicker, and the radiator.

Finned tube radiator.

The pressure is high when the water supply pressure test brakes to prevent the old-fashioned baffle head from bursting and bursting. The steam heat dissipation pipe is a standard type of heat dissipation pipe, the finned pipe radiator is suitable for steam heating system, because its inlet and outlet water joints are placed on both sides of the pipe pipe, so the curved pipe is used to eliminate the stress caused by heat shrinkage and other causes. There are a variety of different skin tube lengths, tube numbers, rows and fin spacing, and there are nearly 100 kinds of sizes and specifications.

Finned tube radiator.

The main ways to increase the temperature of the greenhouse in winter are:

Multi-layer coverage. In the plastic greenhouse set of small arch shed, can make the temperature in the small arch shed increase 2 to 4 degrees Celsius, in the greenhouse using plastic film to make two layers of curtain, in the night cover, can make the shed air temperature, ground temperature on average increase 1 to 2 degrees Celsius. Cover with mulch film.

Mulching generally raises the ground temperature by an average of 2 to 3 degrees Celsius at 10 centimeters. The minimum temperature on the ground has increased by about 1 degree Celsius. At the same time, because the plastic film is not breathable, it can inhibit water evaporation, reduce the number of watering, and indirectly increase the ground temperature.

Ridge cultivation. The high ridge has a large surface area, receives more sunlight during the day, and absorbs more heat from the air, so the trouser wheels heat up quickly. Discharge biogas.

Burning biogas in a plastic greenhouse can increase temperature and replenish gas, and promote the growth of vegetables.

Do a good job of keeping warm at night, and you can light a fire in the shed at night to increase the temperature. Use a good lighting absorbing canopy film, and always keep the cleanliness of the canopy film to ensure that the light exposure is not affected.

The design of the greenhouse is very important, our company is the earliest and more professional greenhouse construction company in Northwest China, welcome to consult and cooperate!

For the cold of winter, we can rely on clothes to protect against the cold, but plants cannot. When the cold of winter comes, the price of vegetables is often the highest. Therefore, in order to make the plants survive the winter, the following methods can be used.

1. Use non-dripping film. At present, the most advanced plastic film on the market is mostly ordinary film, due to the high temperature and humidity in the shed, there are often many water droplets attached to the shed film, which affects the permeability of sunlight, therefore, it is necessary to choose a high non-drip film buckle shed to increase the light intensity in the shed and improve the temperature in the greenhouse.

2. Clean up in time. It is necessary to clean, rinse, and wipe the dust and dirt on the outer wall of the greenhouse frequently, and clean the snow on the shed surface in time to increase the transparency of the shed film and increase the temperature in the shed.

3. Pay attention to heat preservation. The insulation covering outside the shed film should be covered and unrolled in time, and the covering should be rolled up as tightly as possible to ensure that the lighting area and lighting time reach the maximum.

4. Supplemental lighting. In cloudy or rainy and snowy days, when the light intensity and light time are insufficient, artificial light sources such as electric lights, gas lamps or biogas lamps can be used to supplement the light.

5. Match the variety. The varieties of vegetables planted in the greenhouse should be reasonably matched, so that the height of the plants is scattered and orderly, and the phenomenon of blocking light from each other should be minimized, so as to make it evenly lighted, so as to enhance photosynthesis and improve yield and economic benefits.

The temperature, humidity and illumination in the greenhouse have a great impact on the growth of vegetables. The intelligent greenhouse planting system can help the shed owners avoid this problem. Kaiyi intelligent greenhouse planting system can monitor the temperature and humidity, soil moisture, illumination, photosynthetic efficiency, carbon dioxide, illumination, etc. in the greenhouse, transmit it to the cloud platform for processing through wireless technology, and display it in real time on mobile phones, computers, and tablets.

Users can also control greenhouse wet curtain fans, spray drip irrigation, internal and external shading, top and side windows, and heating and supplemental lighting equipment through the software platform. In order to achieve the intelligent management of greenhouse planting, reduce the workload of users, save user labor costs and management costs.

The first is that the light transmission effect should be good.

First of all, we must know that the greenhouse is a lighting building, so the construction of the greenhouse must have good light transmittance conditions, light transmittance is the most basic index to evaluate the intention of greenhouse light transmittance, light transmittance refers to the percentage of light that penetrates into the greenhouse and the amount of outdoor light, the greenhouse light transmittance receives the influence of the light transmittance of the greenhouse light transmittance covering material and the shadow rate of the greenhouse stock price, and then with the different solar radiation angles in different seasons, the light transmittance of the greenhouse is also changing at any time. Then the level of light transmittance becomes a direct factor in the growth of crops and the selection of plant species.

The second is the consideration of the thermal insulation performance of the greenhouse.

Secondly, the greenhouse should also pay attention to the thermal insulation performance, improve the thermal insulation performance of the greenhouse, reduce energy consumption, is the most direct means to improve the production efficiency of the greenhouse, the thermal insulation ratio of the greenhouse is an important indicator to measure the intention of the thermal insulation performance of the greenhouse, the greenhouse thermal insulation ratio refers to the ratio of the sum of the area covered by the greenhouse light transmitting material with small thermal resistance and the area covered by the greenhouse maintenance structure with greater thermal resistance.

The third is that our greenhouses must be durable.

Finally, the construction of greenhouses must take into account its durability, which is affected by the aging resistance of greenhouse materials. Affected by factors such as the bearing capacity of the main structure of the greenhouse, the durability of the light-transmitting material in addition to its own strength also shows the continuous attenuation of the material's transmittance with the extension of time, and the attenuation degree of the light-transmittance is the decisive factor affecting the service life of the light-transmitting material.