Out-of-season early tender ginger cultivation method

Abstract

The invention relates to the technical field of early tender ginger cultivation, and discloses an out-of-season early tender ginger cultivation method which comprises the following steps: step 1, selecting a proper plot and high-quality ginger seeds; 2, base fertilizer is applied, and facilities such as a boiler are prepared; thirdly, a water tank with a heat preservation layer is buried underground; 4, laying a heating and functional circulating pipeline; 5, sowing according to time, earthing and covering with a film; 6, performing temperature control and water and fertilizer management in the growing period; and step 7, after the tender ginger grows up, harvesting, grading and selling. By arranging the underground water tank and utilizing a hot water natural circulation mode, the problem of serious energy waste in traditional cultivation is solved; through the design of the two functional pipelines, precise management of pest control, water and fertilizer irrigation and watering is achieved, operation is convenient, and the growth quality and yield of tender ginger can be improved.

Description

Technical Field

[0001] This invention relates to the field of early ginger cultivation technology, specifically to a method for off-season early ginger cultivation. Background Technology

[0002] Off-season early ginger, also known as ginger sprouts, takes advantage of the short growth period of young ginger. From October to March of the following year, the soil temperature is raised by heating circulating water, allowing the ginger pieces to be marketed before they are fully developed and in the form of buds. This meets the market demand for off-season fresh ginger and has high economic value.

[0003] In existing technologies, the cultivation methods for off-season early ginger are mainly as follows: select suitable soil and choose qualified ginger pieces as seed ginger; before sowing, plow and fertilize, dig furrows and make beds, equip with heating equipment such as boilers and PE pipes, heat circulating water through the boiler, and use electric water pumps to drive the hot water to circulate in the PE pipes in the soil to raise the soil temperature; sow from October to February of the following year, cover with soil, water and cover with film, and build greenhouses if necessary; in field management, control the boiler water temperature to maintain the soil temperature, adjust the heating time and temperature as needed, and carry out separate pest and disease control and water and fertilizer irrigation, and finally harvest when the ginger grows to 15-20cm.

[0004] Current technology requires heating circulating water with a boiler and continuously pumping water to maintain circulation and raise soil temperature. This not only consumes a large amount of energy due to the continuous operation of the pumps, but also results in significant heat loss during water circulation, leading to substantial energy waste. Furthermore, traditional methods are either cumbersome or difficult to control precisely in terms of pest and disease control and irrigation, easily resulting in uneven application of pesticides, improper fertilization, or excessive or insufficient watering, all of which negatively impact the growth and quality of young ginger. Therefore, we propose an off-season early young ginger cultivation method. Summary of the Invention

[0005] The purpose of this invention is to provide a method for cultivating off-season early ginger. By setting up an underground water tank and utilizing the natural circulation of hot water, the serious energy waste problem in traditional cultivation is solved. Through the design of two functional pipes, precise management of pest and disease control, water and fertilizer irrigation and watering is achieved. This not only makes the operation convenient, but also improves the growth quality and yield of young ginger, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a method for cultivating off-season early-maturing ginger, comprising the following steps:

[0007] Step 1: Select a suitable production environment and choose high-quality ginger seeds. The production area should have loose, fertile soil rich in organic matter, with good permeability, convenient irrigation and drainage, and should not have been planted with ginger in the past 3 years. The plot should be far away from pollution sources, local main roads, industrial and mining enterprises, and relatively concentrated in one area. Choose ginger seeds that are commonly used in local ginger cultivation, and select ginger pieces that are bright, plump, disease-free, undamaged, and have buds.

[0008] Step 2: Apply basic fertilizer to the soil and prepare relevant facilities. Dig trenches and make beds according to the width of the mulch or greenhouse. Apply basic fertilizer in conjunction with tilling. Prepare flat land near the production road for installing boilers and storing materials, and build temporary work rooms.

[0009] Step 3: Bury a water tank underground next to the planting area. The outer layer of the water tank is covered with a heat insulation layer and the inside is filled with clean water. A copper pipe is laid through the bottom of the water tank and connected to the steam outlet of the boiler. The boiler is a coal-fired boiler or an electric heating boiler and the water temperature circulation can be controlled by the Internet of Things. Temperature sensors are installed at various points in the water tank and pipes. The temperature sensors are connected to the controller, and the controller is connected to the boiler steam valve.

[0010] Step 4: Bury heating pipes and functional pipes in the soil of the planting area. The heating pipes are closed PE plastic pipes connected to a water tank to form a circulation system. The heating pipes and the water tank are filled with clean water. The functional pipes are pipes located above the soil, with through holes on the surface and connected to the heat-conducting copper pipes of the water tank. When the planting area is on a slope, an additional heat-resistant circulating water pump is installed on one side of the water tank, connecting the circulating water pump between the water tank and the heating pipes buried in the soil, for circulating hot water when used on a slope.

[0011] Step 5: Sowing. The sowing time is from October to February of the following year. Place the ginger seeds vertically in the planting furrow, spray with disinfectant, cover with soil, water thoroughly, spray with sealant, and cover with a film.

[0012] Step Six: Management during the growing season. Start the boiler to heat the water in the water tank to form a natural circulation. Adjust the soil temperature through temperature sensors and controllers. When planting on slopes, use a circulating water pump to circulate the water between pipes. Take heat dissipation measures according to the temperature inside the greenhouse. Water, medicine and fertilizer are applied through functional pipes.

[0013] Step 7: When the young ginger grows to 15-20 cm and is fully expanded, it is harvested according to market conditions, graded, cleaned and sold, and the soil in the planting area is treated to ensure the yield of young ginger during continuous planting.

[0014] In a preferred embodiment of the present invention, in step one, ginger pieces that are small, discolored, water-stained, or have easily peeling skin are removed.

[0015] In a preferred embodiment of the present invention, in step two, the width of the trench and the raised bed is 6.5 meters, the trench width is 40 centimeters and the depth is 50 centimeters; the base fertilizer is 1000 kg to 2000 kg of decomposed farmyard manure or 100 kg to 200 kg of bio-organic fertilizer and 20 kg of compound fertilizer per mu; the prepared flat area is 10 square meters.

[0016] In a preferred embodiment of the present invention, in step three, a water tank with a volume of 3 to 5 cubic meters is provided per acre. The water tank is made of corrosion-resistant stainless steel and the water inside is purified water.

[0017] In a preferred embodiment of the present invention, in step four, 3 to 4 heating pipes with a diameter of 20 mm and a length equivalent to that of the planting area are laid per square meter. When laying the pipes, a trench with a depth of 25 cm is dug, and the pipes are covered with 5 cm of soil. The functional pipe located above the soil consists of a main pipe close to the soil edge and multiple drip irrigation pipes connected to the main pipe.

[0018] In a preferred embodiment of the present invention, the water tank is made of high-strength plastic.

[0019] In a preferred embodiment of the present invention, the diameter of the through holes of the functional tube is 2 mm to 3 mm, and the spacing is 10 cm to 15 cm.

[0020] In a preferred embodiment of the present invention, in step five, the amount of ginger seed used per mu is 15 to 20 tons, the width of the seeding ditch is 1 meter, the soil covering depth is 15 centimeters, and the disinfectant is 1000 times dilution of 72% agricultural streptomycin soluble powder.

[0021] In a preferred embodiment of the present invention, in step six, the soil temperature is controlled to be maintained at 22℃~25℃ from sowing to emergence, 18℃~25℃ during the day and 17℃~18℃ at night after emergence; heat dissipation measures include covering with shade nets, suspending heating, and uncovering a corner of the film.

[0022] In a preferred embodiment of the present invention, multiple water tanks are set up in plots with large planting areas, each water tank being responsible for heating and water and fertilizer management in a certain area; temperature sensors can be set up at different soil depths.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] 1. This invention solves the problem of serious energy waste in traditional cultivation by setting up an underground water tank and utilizing the natural circulation of hot water; through the design of two functional pipes, it realizes precise management of pest and disease control, water and fertilizer irrigation and watering, which is not only convenient to operate, but also improves the growth quality and yield of young ginger.

[0025] 2. This invention utilizes a multi-functional pipeline and temperature control technology to precisely deliver water, fertilizer, and pesticides after heating. This reduces the stimulation of seedlings by cold water, improves root absorption efficiency, and lowers the amount of pesticides and fertilizers used, thus better meeting the requirements of green planting.

[0026] 3. This invention can be flexibly adapted to larger planting areas through multi-tank zone control and soil temperature monitoring at different depths. Attached Figure Description

[0027] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0028] Figure 1 This is a flowchart of a method for cultivating off-season early ginger according to the present invention. Detailed Implementation

[0029] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0030] Example 1

[0031] Please see Figure 1 This invention provides a technical solution: a method for cultivating early-maturing ginger out of season, aiming to solve the problems of serious energy waste, cumbersome pest control operations, and low water and fertilizer irrigation efficiency in existing methods. The following is a detailed description of the specific implementation process:

[0032] The selection of the production environment is similar to that of traditional cultivation. It requires loose, fertile soil rich in organic matter, with good permeability, convenient irrigation and drainage, and soil that has not been planted with ginger for the past three years. The plot should be far away from pollution sources, main roads, and industrial and mining enterprises, and ideally, it should be relatively concentrated in a contiguous area to facilitate later management, sales, and transportation. After selecting the plot, the next step is to select superior varieties. Generally, commonly used local ginger varieties are chosen as the seed for ginger sprout production. When selecting, choose ginger pieces that are bright, plump, free from disease and damage, and have buds. Remove smaller pieces, discolored flesh, water-stained pieces, and pieces with easily peeling skin to ensure the quality of the seed ginger and lay a good foundation for subsequent growth.

[0033] Before cultivation, basic fertilizer needs to be applied to the soil. Similar to traditional cultivation methods, furrows and beds are dug according to the width of the mulch film or greenhouse. Generally, the bed width is about 6.5 meters, and the furrow width is 40 centimeters and the depth is 50 centimeters. During tilling, apply 1000-2000 kg of well-rotted farmyard manure or 100-200 kg of bio-organic fertilizer and 20 kg of compound fertilizer per acre to ensure sufficient nutrients in the soil. Prepare a flat area of ​​about 10 square meters near the production road for installing a coal-fired or electric boiler, storing materials, and also constructing a temporary work shed for storing tools and performing simple operations.

[0034] Because existing circulating water systems are not conducive to heat preservation and result in significant energy waste, this invention makes the following improvements: A water tank is buried underground next to the planting area. The size of the tank can be determined according to the planting area; generally, one tank with a volume of 3 to 5 cubic meters is used per acre. The tank can be made of corrosion-resistant stainless steel to extend its service life, and an insulation layer is added to the outside to further improve its heat preservation performance. The tank is then filled with clean water, preferably purified water, and the subsequently buried pipes are also filled with clean water to form a complete water circulation system. At the bottom of the tank, copper pipes are laid running through it. One end of these pipes is connected to the steam outlet of a boiler, and the other end can be connected to the outside or returned to the boiler so that the water in the tank can be heated by the boiler's steam. Temperature sensors are installed in the tank and at various points along the buried pipes. These sensors are connected to a controller, which is then connected to the boiler's steam valve. This allows the steam supply to be adjusted based on the monitored temperature, ensuring that the water temperature remains stable within a suitable range.

[0035] Then, pipes are buried in the soil of the planting area. These pipes should be evenly distributed throughout the planting area. Specifically, 3 to 4 PE plastic pipes with a diameter of 20 mm can be laid per square meter. The length of the pipes is determined by the length of the planting area, generally being roughly the same as the length of the planting area. The pipes have a closed structure, and are connected to a water tank through multiple connecting pipes. The buried pipes are also filled with clean water, thus forming a complete water circulation system. PE plastic pipes are corrosion-resistant, flexible, and have sufficient thermal conductivity, making them suitable for use buried in soil. When laying the pipes, a trench about 25 cm deep should be dug first, then the pipes should be laid evenly along the trench, and then covered with about 5 cm of soil to fix them in place. This protects the pipes and allows them to better contact the soil, facilitating heat transfer.

[0036] A functional pipe is also installed, which can be used for drug administration, fertilization, and watering. Located above the soil, this pipe consists of a main pipe running along the edge of the soil and multiple drip irrigation pipes connected to it, facilitating watering and fertilization of the ginger. This pipe is also made of PE plastic, with evenly spaced perforations on its surface. The perforations are 2-3 mm in diameter and spaced 10-15 cm apart to ensure uniform distribution of drugs, fertilizers, or water.

[0037] This pipe connects to another heat-conducting copper pipe that runs through the inside of the water tank. One end of the heat-conducting copper pipe extends into the water tank, and the other end extends out of the water tank. At the end of the heat-conducting copper pipe that extends out of the water tank, there is a secondary connector. The secondary connector can be connected to a pesticide or fertilizer supply device. At the same time, the main connector of this pipe is also connected to the secondary connector. The main connector is also connected to a clean water source, and the supplied medium can be switched by controlling the valve.

[0038] Similar to traditional methods, the amount of ginger seed used is 15 to 20 tons per acre, and the sowing time is from October to February of the following year. When sowing, first dig planting trenches 1 meter wide. Lay the PE pipes for heating in the trenches as previously required, and cover them with a small amount of soil. Then, place the ginger seeds vertically with the sprouts facing upwards, neatly arranging them in the trenches. Next, spray with a disinfectant, such as a 1000-fold dilution of 72% agricultural streptomycin soluble powder. Then, cover the ginger seeds in the next row of planting trenches with soil from the previous row, covering them to a depth of about 15 centimeters. After all the soil has been used, water thoroughly and spray with a pre-sealing agent to control weeds. Finally, cover with a thin film to retain heat and moisture.

[0039] When heating is needed, the boiler is started, allowing steam generated by the boiler to enter the bottom of the water tank through copper pipes, heating the water in the tank. Because hot water flows upwards, the heated water at the bottom of the tank naturally flows upwards, entering pipes buried in the soil through connecting pipes. The cold water in the pipes, due to its higher density, flows back to the bottom of the tank, forming a natural circulation. This eliminates the need for an additional water pump, significantly saving energy. Simultaneously, because the water tank is buried underground, the soil itself acts as an excellent insulation layer. Combined with additional insulation, this effectively reduces heat loss, further lowering energy consumption. Temperature sensors monitor the temperature of the water tank and the pipes in the soil. When the temperature is below the set value, the controller opens the steam valve to increase the steam supply; when the temperature is above the set value, it reduces the steam supply, ensuring the soil temperature remains stable within a suitable range: generally, the soil temperature is maintained between 22℃ and 25℃ from sowing to emergence, and after emergence, the soil temperature is maintained between 18℃ and 25℃ during the day and between 17℃ and 18℃ at night. If it is necessary to adjust the market time of young ginger, it can also be achieved by controlling the soil temperature; appropriately lowering the soil temperature can delay the market time.

[0040] When the planting area is on a slope, an additional heat-resistant circulating water pump is installed on one side of the water tank. For slopes, the circulating water pump can be used to draw hot water and circulate it in pipes buried in the soil to achieve its good heat preservation and heating function.

[0041] The boilers mentioned above can be heated by coal-fired boilers or electric heating devices, and the water temperature circulation can be controlled by the Internet of Things.

[0042] When producing young ginger in greenhouses, the mulch film is used. When the ginger seedlings emerge and top the film, the mulch film can be removed, leaving the greenhouse intact. If only the mulch film is used, it should be kept in place until the young ginger is harvested. During the growing season, if the temperature rises and the temperature inside the film becomes too high, measures such as covering with shade netting, suspending heating, or uncovering a corner of the film can be taken to dissipate heat and ensure a suitable temperature inside the greenhouse.

[0043] After heating begins, promptly check the water tank and pipes for leaks. If leaks are found, repair them immediately. During the growth period of young ginger, keep the soil moist. If the soil is too dry, water can be applied through the functional pipes: when top spray irrigation is needed, open the main connector valve of the pipe above the soil to allow clean water to spray onto the ginger seedlings and soil surface through the through holes in the pipe. The clean water will seep into the soil through the cotton cloth and be directly absorbed by the roots. If waterlogging occurs, drain the water through the drainage ditch in time.

[0044] Common diseases affecting young ginger include ginger wilt, root-knot nematode disease, and stem rot. Although young ginger has a short growth period and is less susceptible to pests and diseases due to lower external temperatures, prevention is still paramount. In addition to traditional control measures, such as selecting plots that have not been planted with ginger for the past three years, applying dazomet soil disinfectant or black (wood ash) and white (slaked lime) ash for soil disinfection, selecting disease-free ginger seeds, and using well-rotted organic fertilizer, precise drug administration can also be achieved through functional pipelines.

[0045] When pest control is needed, open the auxiliary valve of the pipe above the soil to introduce insecticide, and at the same time open the main valve to introduce clean water. The clean water and insecticide will be heated as they pass through the heat-conducting copper pipe in the water tank. This not only allows the insecticide and clean water to mix thoroughly, but also avoids cold water stimulating the seedlings. Then the mixture is evenly sprayed onto the ginger seedlings through the holes on the pipe. The mixture will also seep through the cotton cloth into the soil, directly acting on the pests and pathogens around the roots, thus improving the control effect.

[0046] When fertilizing, open the auxiliary valve of the functional pipe to introduce fertigation solution, and simultaneously open the main valve to introduce clean water. The clean water and fertigation solution are heated and thoroughly mixed in the water tank, and then dripped through the pipes. This ensures even distribution of fertilizer while maintaining a suitable water temperature to prevent interference with root absorption. During fertilization, the concentration and amount of fertigation solution can be adjusted according to the growth of the young ginger to ensure a reasonable supply of nutrients.

[0047] Because the above-mentioned pesticide and fertilizer application processes involve the application of liquid pesticides or fertilizers through the inside of the water tank, and the water temperature inside the tank is controlled within a suitable range to meet the growth needs of the young ginger, coupled with the temperature difference caused by heat conduction, the temperature of the liquid pesticides or fertilizers will not be higher than the water temperature inside the tank, thus keeping the temperature of the liquid pesticides or fertilizers at a suitable level and avoiding the problem of scalding the seedlings.

[0048] When the young ginger grows to 15-20 cm and is fully expanded, it can be harvested according to market conditions. The harvested young ginger is divided into three grades: large ginger, two-finger ginger, and ginger node ginger. After being cleaned by a washing machine, it is sold in a timely manner to ensure the freshness and quality of the young ginger.

[0049] Traditional methods of growing young ginger require relocation after one season, which necessitates changing the location of the water tank and buried pipes used in this application, increasing operating costs. Therefore, the following measures are taken after planting to ensure that the planting site does not need to be changed after planting ceases, thus reducing costs:

[0050] To achieve the goal of planting young ginger without changing the land, soil remediation is carried out after each season. Specifically, after harvesting, the soil is deeply tilled to a depth of more than 30 cm to allow the deep soil to fully contact the air. At the same time, 3,000-4,000 kg of well-rotted cow and sheep manure or other organic fertilizers are mixed in per acre, along with 50 kg of quicklime. This can not only adjust the soil pH value to the suitable range of 6.0-7.0, but also effectively kill pathogens and insect eggs in the soil.

[0051] Before sowing, soak seeds in a 50% carbendazim solution diluted 500 times for 1 hour to reduce pathogens carried by the seeds. During the growing season, pay attention to supplementing phosphorus and potassium fertilizers. Apply 40-50 kg of superphosphate and 20-30 kg of potassium sulfate per acre, and spray chelated calcium and magnesium fertilizers at the same time to enhance the plant's disease resistance. In addition, timely drainage is necessary during the rainy season to avoid waterlogging in the field, which can lead to the growth of root diseases. Through these remedial measures, soil conditions can be significantly improved, continuous cropping obstacles can be alleviated, and thus the yield of young ginger can be stabilized through continuous planting.

[0052] Example 2

[0053] To adapt to different planting scales and geographical conditions, this solution can also be implemented in several variations. For example, for larger planting areas, multiple water tanks can be installed, each responsible for heating and water and fertilizer management in a specific area, thus improving the precision of control. The water tanks can also be made of high-strength plastic, which, although slightly less thermally conductive than stainless steel, is cheaper and suitable for small-scale planting. The size and spacing of the through-holes in the functional pipes can also be adjusted according to actual needs. For areas with highly clayey soil, the cotton cloth used for the pipes buried in the soil can be made of a looser material to prevent clogging. In terms of temperature sensor placement, in addition to the water tanks and pipes, sensors can also be installed at different depths in the soil to more comprehensively monitor changes in soil temperature.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0055] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A method for cultivating off-season early-maturing ginger, characterized in that, Includes the following steps: Step 1: Select a suitable production environment and choose high-quality ginger seeds. The production area should have loose, fertile soil rich in organic matter, with good permeability, convenient irrigation and drainage, and should not have been planted with ginger in the past 3 years. The plot should be far away from pollution sources, local main roads, industrial and mining enterprises, and relatively concentrated in one area. Choose ginger seeds that are commonly used in local ginger cultivation, and select ginger pieces that are bright, plump, disease-free, undamaged, and have buds. Step 2: Apply basic fertilizer to the soil and prepare relevant facilities. Dig trenches and make beds according to the width of the mulch or greenhouse. Apply basic fertilizer in conjunction with tilling. Prepare flat land near the production road for installing boilers and storing materials, and build temporary work rooms. Step 3: Bury a water tank underground next to the planting area. The outer layer of the water tank is covered with a heat insulation layer and the inside is filled with clean water. A copper pipe is laid through the bottom of the water tank and connected to the steam outlet of the boiler. The boiler is a coal-fired boiler or an electric heating boiler and the water temperature circulation can be controlled by the Internet of Things. Temperature sensors are installed at various points in the water tank and pipes. The temperature sensors are connected to the controller, and the controller is connected to the boiler steam valve. Step 4: Bury heating pipes and functional pipes in the soil of the planting area. The heating pipes are closed PE plastic pipes connected to a water tank to form a circulation system. The heating pipes and the water tank are filled with clean water. The functional pipes are pipes located above the soil, with through holes on the surface and connected to the water tank as heat-conducting copper pipes. When the planting area is on a slope, an additional heat-resistant circulating water pump is installed on one side of the water tank, connecting the circulating water pump between the water tank and the heating pipes buried in the soil, for circulating hot water when used on a slope. Step 5: Sowing. The sowing time is from October to February of the following year. Place the ginger seeds vertically in the planting furrow, spray with disinfectant, cover with soil, water thoroughly, spray with sealant, and cover with a film. Step Six: Management during the growing season. Start the boiler to heat the water in the water tank to form a natural circulation. Adjust the soil temperature through temperature sensors and controllers. When planting on slopes, use a circulating water pump to circulate the water between pipes. Take heat dissipation measures according to the temperature inside the greenhouse. Water, medicine and fertilizer are applied through functional pipes. Step 7: When the young ginger grows to 15-20 cm and is fully expanded, it is harvested according to market conditions, graded, cleaned and sold, and the soil in the planting area is treated to ensure the yield of young ginger during continuous planting.

2. The method for off-season early ginger cultivation according to claim 1, characterized in that: In step one, ginger pieces that are too small, have discolored flesh, are watery, or have easily peeling skin are removed.

3. The method for off-season early ginger cultivation according to claim 1, characterized in that: In step two, the width of the trench and the raised bed is 6.5 meters, the trench is 40 centimeters wide and 50 centimeters deep; the base fertilizer is 1000-2000 kg of decomposed farmyard manure or 100-200 kg of bio-organic fertilizer and 20 kg of compound fertilizer per mu; the prepared flat area is 10 square meters.

4. The method for off-season early ginger cultivation according to claim 1, characterized in that: In step three, each acre of land is equipped with a water tank with a volume of 3 to 5 cubic meters. The water tank is made of corrosion-resistant stainless steel and contains purified water.

5. The method for off-season early ginger cultivation according to claim 1, characterized in that: In step four, 3 to 4 heating pipes with a diameter of 20 mm and a length equivalent to that of the planting area are laid per square meter. When laying the pipes, a trench with a depth of 25 cm is dug, and the pipes are covered with 5 cm of soil. The functional pipe located above the soil consists of a main pipe that is close to the soil edge and multiple drip irrigation pipes connected to the main pipe.

6. The method for off-season early ginger cultivation according to claim 1, characterized in that: The water tank is made of high-strength plastic.

7. The method for off-season early ginger cultivation according to claim 1, characterized in that: The through-hole diameter of the functional tube is 2 mm to 3 mm, and the spacing is 10 cm to 15 cm.

8. The method for off-season early ginger cultivation according to claim 1, characterized in that: In step five, the amount of ginger seed used per mu is 15 to 20 tons, the width of the planting ditch is 1 meter, the soil covering depth is 15 centimeters, and the disinfectant is 1000 times dilution of 72% agricultural streptomycin soluble powder.

9. The method for off-season early ginger cultivation according to claim 1, characterized in that: In step six, the soil temperature is controlled to be maintained at 22℃~25℃ from sowing to emergence, and 18℃~25℃ during the day and 17℃~18℃ at night after emergence; heat dissipation measures include covering with shade nets, suspending heating, and uncovering a corner of the film.

10. A method for cultivating off-season early-maturing ginger according to claim 1, characterized in that: For plots with large planting areas, multiple water tanks are set up, with each tank responsible for heating and water and fertilizer management in a certain area; temperature sensors can be installed at different soil depths.

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