JP3088226U - Strawberry cultivation equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively prevent the occurrence of powdery mildew peculiar to strawberries without spraying a fungicide or reducing the amount of the fungicide. SOLUTION: In the strawberry cultivation apparatus, a plurality of blue light emitting diodes 5 are provided in an agricultural house 1 for cultivating strawberries. The strawberry cultivation device irradiates the strawberry with blue light using the blue light emitting diode 5 to prevent the occurrence of powdery mildew. [Effect] The generation of powdery mildew can be prevented very effectively without spraying the fungicide or by reducing the amount of fungicide. Ideal for producing strawberries.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a cultivation apparatus for growing strawberries in an agricultural house.

[0002]

[Prior art]

 Strawberries are preferred by an extremely large number of consumers, from children to the elderly, and their consumption is increasing as much as apples. However, if strawberry is grown in an agricultural house, powdery mildew is extremely likely to occur. When powdery mildew occurs, strawberries are destroyed unless disinfected. For this reason, strawberries in the house are cultivated because they are frequently disinfected. In general strawberry cultivation, in many cases, a fungicide for powdery mildew is sprayed, for example, about twice a month. Sulfur vapor spraying is also common. Since the applied fungicide adheres to the fruit surface, the application of the fungicide is restricted for a few days immediately before shipment. However, when powdery mildew occurs, a fungicide must be applied. For this reason, it is extremely difficult to completely eliminate the shipment of strawberries to which a disinfectant has been attached. In addition, fungicides on the leaves may adhere to the surface of the growing fruit. For this reason, strawberry fruits that are actually shipped have substantial fungicides applied to their surfaces.

[0003]

[Problems to be solved by the invention]

 Unfortunately, strawberries, like oranges and apples, do not peel and eat, making it extremely difficult to completely remove the surface fungicide and eat them. Another disadvantage is that the strawberry flavor is significantly reduced when washed to remove the fungicide. In particular, in order to more effectively remove the attached disinfectant, the more thoroughly washed, the lower the flavor. For this reason, it is extremely difficult to eat strawberries by completely removing the fungicide on the surface. Nevertheless, strawberries are a fruit that children especially like to eat. Fungicides that adhere to strawberries are thought to affect children's health. For this reason, it is extremely important for strawberries to minimize the amount of disinfectant that adheres to the surface, and in fact, there is an urgent need for technology to achieve this.

[0004] Furthermore, although fungicides have an effect of controlling powdery mildew, they also have an adverse effect on strawberry growth. For this reason, when disinfectant is sprayed, there is a disadvantage that the fruit of the strawberry becomes not only beautiful red but also a strong black. This not only has the fungicide adversely affect strawberry growth, but also reduces flavor.

[0005] The present invention has been developed to solve such a drawback. An important object of the present invention is to provide a strawberry cultivation apparatus capable of extremely effectively preventing the occurrence of powdery mildew peculiar to strawberries without spraying the fungicide or reducing the amount of the fungicide. .

[0006]

[Means for Solving the Problems]

 In the strawberry cultivation apparatus of the present invention, a plurality of blue light emitting diodes 5 are provided in an agricultural house 1 for growing strawberries, and the blue light emitting diodes 5 irradiate the strawberries with blue light.

The blue light emitting diode 5 can irradiate a strawberry with blue light continuously day and night. Further, the blue light emitting diodes 5 can be arranged at predetermined intervals above the agricultural house 1. A large number of the blue light emitting diodes 5 can be arranged on the agricultural house 1 by connecting a large number thereof in a straight line. Further, the blue light emitting diodes 5 can be connected at intervals of 3 to 100 cm. The distance from the cultivation medium 6 for growing strawberries to the blue light emitting diode 5 can be 50 cm to 3 m. The plurality of blue light-emitting diodes 5 can be connected by being inserted into a transparent pipe 7. The blue light emitting diode 5 can have a peak wavelength of 400 to 500 nm.

Further, the strawberry cultivation apparatus of the present invention is provided with a timer 11 for specifying the lighting time of the blue light emitting diode 5, and the timer 11 can light the blue light emitting diode 5 at night.

[0009]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the following examples illustrate a strawberry cultivation apparatus for embodying the technical idea of the present invention, and the present invention does not specify a strawberry cultivation apparatus as follows.

[0010] Further, in this specification, in order to make it easier to understand the scope of claims for utility model registration, the numbers corresponding to the members shown in the embodiments will be referred to as "columns for claims for utility model registration" and " In the column of "Means to Solve". However, the members indicated in the claims of the utility model registration are not specified in the examples.

In the cultivation apparatus shown in FIG. 1, a large number of blue light emitting diodes 5 are provided in an agricultural house 1 in a closed space 4 for cultivating strawberries. Is irradiated. The agricultural house 1 has a transparent film 3 stretched over a surface of a frame 2 and a closed space 4 provided inside. The transparent film 3 is a vinyl chloride film. In the agricultural house 1 shown in the figure, frames 2 in which pipes are curved in an arch shape are arranged at regular intervals and fixed vertically, and a transparent film 3 is stretched on the surface thereof. Agricultural houses can be provided with a transparent film as a steel frame structure, or a glass frame can be fixed to a steel frame to provide a closed space. Further, in the agricultural house 1 shown in the figure, strawberries are cultivated in the alley, but as shown in the sectional view of FIG. 2, a culture medium 6 for hydroponics can be provided away from the ground.

In the illustrated cultivation apparatus, a large number of blue light-emitting diodes 5 are disposed above an agricultural house 1. The blue light emitting diodes 5 are linearly connected at predetermined intervals and disposed inside the agricultural house 1. In this cultivation apparatus, blue light-emitting diodes 5 are linearly arranged and connected at intervals of about 10 cm. However, the interval between the blue light emitting diodes 5 can be 3 to 100 cm, preferably 5 to 30 cm, and more preferably 5 to 20 cm. When the distance between the blue light-emitting diodes 5 is reduced to a large number, the intensity of light that irradiates strawberries with blue light increases. Conversely, if the distance between the blue light emitting diodes 5 is increased, the intensity of the blue light irradiating the strawberry decreases. The reason why the blue light emitting diode 5 irradiates the strawberry with the blue light is not to grow the strawberry with the blue light. This is because the blue light of the blue light emitting diode 5 suppresses the occurrence of powdery mildew or prevents the spread of powdery mildew. The intensity of the blue light that achieves this is extremely weak. For example, when the blue light emitting diodes 5 are lit at the rated power, 50 to 500 pieces per 100 square meters are sufficient. Since the luminous efficiency of the blue light emitting diode 5 is gradually improved, the number of the blue light emitting diode 5 can be further reduced by using the blue light emitting diode 5 having excellent luminous efficiency.

The agricultural house 1 of FIG. 1 has blue light emitting diodes 5 arranged in one row at the top, and the agricultural house 1 of FIG. 2 has blue light emitting diodes 5 arranged in a plurality of rows. are doing . As shown in FIG. 2, the cultivation apparatus in which the blue light emitting diodes 5 are arranged in a plurality of rows has a feature that the strawberry can be irradiated with blue light from various directions, so that the powdery mildew can be more effectively prevented. Another feature is that a blue light-emitting diode 5 is provided just above the row where strawberries are cultivated, so that blue light can be emitted efficiently.

In order for the blue light emitting diode 5 to efficiently irradiate the strawberry with blue light, the interval from the blue light emitting diode 5 to the culture medium 6 for growing strawberries is about 1.5 meters. However, this interval can be set to 50 cm to 3 m. When the blue light emitting diode 5 approaches the culture medium 6, the intensity of blue light increases, but the area that can be irradiated by one blue light emitting diode 5 decreases. Further, if the blue light emitting diode 5 is located near the strawberry, it may hinder the work. Therefore, the distance between the blue light emitting diode 5 and the culture medium 6 is set in the above range so that the work can be performed efficiently and the blue light emitting diode 5 can irradiate the strawberry with blue light in a wide area.

As shown in FIG. 3, the cultivation apparatus shown in FIG. 3 has a plurality of blue light emitting diodes 5 inserted in a transparent pipe 7 and connected in a straight line. This structure has a feature that a large number of blue light emitting diodes 5 can be linearly connected with a simple structure. Another feature is that the transparent light emitting diode 5 can be protected by the transparent pipe 7. Further, there is a feature that the lead wire 5A connected to the blue light emitting diode 5 can be insulated. The transparent pipe 7 is made of plastic or glass.

The blue light emitting diode 5 having a peak wavelength of 450 nm is suitable, but one having a peak wavelength of 400 to 500 nm can also be used. The blue light-emitting diode 5 has a peak wavelength of 400 to 500 nm and can efficiently prevent the occurrence of powdery mildew.

FIG. 4 is a circuit diagram showing a lighting circuit 8 for the blue light emitting diode 5. As shown in this figure, a large number of blue light emitting diodes 5 are connected in series, and a current limiting resistor 9 is connected in series with the blue light emitting diodes 5 to be connected to a power supply circuit 10. The power supply circuit 10 converts an input 100 V AC which is a commercial power supply into a DC voltage and a current that can turn on the plurality of blue light emitting diodes 5 connected in series, and outputs the DC. The current limiting resistor 9 is connected to supply a rated current to the blue light emitting diode 5 connected in series.

A cultivation apparatus that irradiates one agricultural house 1 with blue light using hundreds of blue light emitting diodes 5 connects a large number of blue light emitting diodes 5 in series and further connects them in parallel. Then, the number of blue light emitting diodes 5 is adjusted as a whole. The total number of the blue light emitting diodes 5 can be adjusted by the number connected in parallel.

However, as shown in FIG. 5, a large number of blue light emitting diodes 5 can be connected in parallel, and a current limiting resistor 9 can be connected in series to the blue light emitting diode 5 and connected to the power supply circuit 10. The power supply circuit 10 converts an AC 100 V, which is a commercial power supply, into a DC voltage and a current that can turn on a plurality of blue light emitting diodes 5 connected in parallel, and outputs the DC. Furthermore, a cultivation apparatus that irradiates blue light with hundreds of blue light-emitting diodes 5 has a structure in which a large number of blue light-emitting diodes 5 are connected in parallel and a current limiting resistor 9 is connected in series with them. The number of blue light emitting diodes 5 is adjusted by connecting them in parallel. As shown in FIG. 6, the blue light emitting diodes 5 connected in parallel can also be linearly connected by being put in a transparent pipe 7. As described above, the structure in which a large number of blue light emitting diodes 5 are connected in parallel allows the remaining blue light emitting diodes 5 to emit light even if one of the blue light emitting diodes 5 does not emit light normally due to disconnection or the like. To emit blue light.

Further, the lighting circuit 8 of FIGS. 4 and 5 has a timer 11 connected to the power supply circuit 10. The timer 11 stores the lighting time of the blue light emitting diode 5. The timer 11 is a 24-hour timer that turns on the blue light emitting diode 5 at night. The cultivation apparatus provided with the timer 11 has a feature that the power consumption is reduced and economical because the blue light emitting diode 5 is turned on only at night. However, since the blue light emitting diode has a very long life and consumes little power, it can be turned on 24 hours a day without turning it off during the day. This lighting circuit does not require a timer and can be inexpensive.

[0021]

[Effect of the invention]

 The strawberry cultivation apparatus of the present invention has a feature that the generation of powdery mildew peculiar to strawberries can be extremely effectively prevented without spraying or reducing the amount of fungicide. This is because the strawberry cultivation device of the present invention has a large number of blue light emitting diodes installed in the agricultural house for cultivating strawberries, and the blue light emitting diodes irradiate the strawberries with blue light to cause powdery mildew. Is prevented. Thus, the strawberry cultivation apparatus of the present invention irradiates blue light with a blue light-emitting diode to prevent the occurrence of powdery mildew, so that no germicide is sprayed or the amount of germicide is reduced. You can grow strawberries. Therefore, various adverse effects caused by the disinfectant can be eliminated, and safe and high-quality strawberry can be ideally produced.

[Brief description of the drawings]

FIG. 1 is a perspective view of a strawberry cultivation apparatus according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a strawberry cultivation apparatus according to another embodiment of the present invention.

FIG. 3 is an enlarged sectional view showing a state in which a plurality of blue light emitting diodes are arranged on a transparent pipe.

FIG. 4 is a circuit diagram showing an example of a lighting circuit of a blue light emitting diode.

FIG. 5 is a circuit diagram showing another example of a lighting circuit for a blue light emitting diode.

FIG. 6 is an enlarged sectional view showing another example of disposing a plurality of blue light emitting diodes on a transparent pipe.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Agricultural house 2 ... Frame 3 ... Transparent film 4 ... Closed space 5 ... Blue light emitting diode 5A ... Lead wire 6 ... Medium 7 ... Transparent pipe 8 ... Lighting circuit 9 ... Current limiting resistor 10 ... Power supply circuit 11 ... Timer

Claims (9)

[Utility model registration claims] A plurality of blue light emitting diodes (5) are provided in an agricultural house (1) for cultivating strawberries, and the blue light emitting diodes (5) irradiate the strawberries with blue light. Cultivation equipment. 2. The strawberry cultivation apparatus according to claim 1, wherein the blue light emitting diode irradiates the strawberry with blue light continuously day and night. 3. The strawberry cultivation apparatus according to claim 1, wherein the blue light emitting diodes (5) are arranged at predetermined intervals above the agricultural house (1). 4. The strawberry cultivation apparatus according to claim 1, wherein a plurality of blue light-emitting diodes (5) are linearly connected and arranged on an agricultural house (1). 5. A blue light emitting diode (5) having 3 to 100
The strawberry cultivation apparatus according to claim 1, wherein the strawberry cultivation apparatus is connected at an interval of cm. 6. The strawberry cultivation apparatus according to claim 1, wherein the distance from the cultivation medium (6) for strawberry to the blue light emitting diode (5) is 50 cm to 3 m. 7. The strawberry cultivation apparatus according to claim 1, wherein a plurality of blue light emitting diodes (5) are connected by being inserted in a transparent pipe (7). 8. The strawberry cultivation apparatus according to claim 1, wherein the blue light emitting diode has a peak wavelength of 400 to 500 nm. 9. The system according to claim 1, further comprising a timer for determining a lighting time of the blue light emitting diode, wherein the timer turns on the blue light emitting diode at night. A strawberry cultivation device.