JPH0675128U - Strawberry cultivation equipment - Google Patents

Abstract

(57) [Summary] [Purpose] To solve the shortage of light and temperature of strawberries cultivated in the lower cultivation bed, thereby improving the harvesting efficiency of the lower cultivation bed as compared with the conventional method. [Structure] Light bulbs 15, 16 and 17 as lighting devices capable of irradiating light to strawberries grown in the cultivation bed 3 arranged in the lower stage except the uppermost cultivation bed 2 are arranged. A light-reflecting sheet 1 is provided outside both side walls of the lower cultivation bed 3.
8 is provided. The strawberries cultivated in the lower cultivating bed 3 are irradiated with light from the light bulbs 15, 16 and 17 for a predetermined time at night, and the reflected light from the light reflective sheet 18 is supplied during the day. Therefore, insufficient light and insufficient temperature are eliminated.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a strawberry cultivation device, and more particularly to a strawberry cultivation device suitable for forcible cultivation.

[0002]

[Prior art]

 In strawberry cultivation, in order to increase the yield, cultivation beds having a predetermined width and length arranged in a greenhouse are arranged vertically in multiple stages (usually two stages). . In forcing cultivation, flower bud differentiation is promoted by maintaining a low temperature and short day environment for a predetermined period.In addition, in the dormant period after flower bud differentiation, the state before entering the dormant state, that is, the semi-dormant state. Is being maintained. This semi-dormant state is maintained by keeping the temperature and the photoperiod in the greenhouse for about April to May.

[0003]

[Problems to be solved by the device]

 However, when the cultivating beds are arranged in multiple stages, the cultivating beds arranged in the lower stage are behind the upper cultivating beds, and thus strawberries growing in the lower cultivating beds are apt to have insufficient light and insufficient temperature. Therefore, the yield of the lower cultivation bed is significantly smaller than that of the upper cultivation bed.

In addition, even in forcing cultivation, if strawberries grown in the upper cultivation bed are combined with appropriate environmental conditions, the strawberries grown in the lower cultivation bed will suffer from insufficient light and insufficient temperature, resulting in semi-diapause. The state cannot be maintained, and the state becomes more like a complete dormancy state. Therefore, the reproductive growth and the vegetative growth cannot be balanced, and as a result, the yield is significantly smaller than that of the upper cultivation bed.

The present invention has been made to solve the above-mentioned problems, and solves the shortage of light and temperature of strawberries grown in the cultivation bed arranged in the lower stage, and thus in the cultivation bed in the lower stage. It is an object of the present invention to provide a multi-stage type strawberry cultivating apparatus which can improve harvesting efficiency more than ever and is particularly suitable for forcing cultivation.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the strawberry cultivating apparatus of the present invention is a multi-tiered strawberry cultivating apparatus in which a plurality of cultivating beds are vertically arranged at predetermined intervals, except for the uppermost cultivating bed. A lighting device capable of irradiating light on strawberries grown in a lower cultivation bed, and a light-reflecting sheet arranged outside both side walls of the lower cultivation bed. And

[0007]

【Example】

 Hereinafter, the strawberry cultivation apparatus of the present invention will be described based on the embodiments shown in the drawings. In the figure, 1 is a cultivation apparatus of this embodiment, which is composed of two stages, an upper cultivation bed 2 and a lower cultivation bed 3.

Since the upper cultivating bed 2 and the lower cultivating bed 3 have the base materials 21 and 31, and the culture media 22 and 32 such as soil, sand and rock wool filled inside the base materials 21 and 31, respectively. If there is no particular limitation. As the base materials 21 and 31, as shown in FIGS. 1 to 3, those made of a plastic sheet having a predetermined length and width and stretched in a substantially U-shaped cross section can be used. The support members for tensioning the base materials 21 and 31 made of plastic sheets are, for example, a set of three, and leg members 4, 4, which are erected on the ground in two rows facing each other at a predetermined interval. 5, 5, 6 and 6 and upper and lower pipes 7 and 8 and lower pipes 9 and 10 which are arranged to face the leg members 4, 5 and 6 in each row at predetermined intervals so as to face each other. ,,. Then, the base material 21 forming the upper stage cultivation bed 2 is fixed by being wound around the upper stage pipes 7 and 8 around the upper end edges of both side wall portions and stretched so as to have a substantially U-shaped cross section as described above. The base material 31 forming the lower cultivation bed 3 is similarly fixedly arranged on the lower pipes 9 and 10.

Further, as is clear from FIGS. 1 to 3, in this embodiment, since the drainage gaps 21 a and 31 a are formed between the base materials 21 and 31 and the bottom wall portions, the upper pipe 7 is formed. , 8 and lower pipes 9 and 10 are supported, and auxiliary sheets 21b and 31b having a substantially U shape are provided outside the base materials 21 and 31, respectively.

Further, drain pipes 11 and 12 for discharging the drainage passing through the gaps 21a and 31a are connected to the auxiliary sheets 21b and 31b, respectively. Further, as shown in FIG. 3, warm and cold water tubes 13 and 14 for adjusting the temperature of the culture medium are provided in the inner lower portions of the base materials 21 and 31, respectively. The hot and cold water tubes 13 and 14 are connected to an arbitrary hot water source or cold water source (not shown).

As the upper cultivating bed 2 and the lower cultivating bed 3, it is possible to use, as a base material, a rigid body such as a hard plastic or a metal formed in a substantially concave cross section. In addition, if necessary, a drainage port is provided in the approximate center of the bottom wall, and a drainage part with a substantially concave cross section for receiving drainage passing through the drainage port is provided on the back side of the drainage port with a predetermined shape. It is also possible to use an integrally molded product.

[0012] It is suspended above the lower cultivating bed 3 at an appropriate position, in the present embodiment, by support rods 4a, 5a, 6a which are horizontally stretched between the leg members 4, 4, 5, 5, 6, 6 facing each other. Light bulbs 15, 16 and 17 as illumination devices are provided. These light bulbs 15, 16 and 17 are used to control the photoperiod to maintain the vigor of strawberries. That is, since the lower cultivating bed 3 is behind the upper cultivating bed 2, the daytime light supply amount and supply time are smaller than those of the upper cultivating bed 2, and therefore the lower cultivating bed 3 is provided to compensate for this. As the light bulbs 15, 16 and 17, incandescent light bulbs or the like used in ordinary illuminating cultivation are used, but for strawberries grown in the upper cultivation bed 2, an excessive supply of light is prevented. In addition, it is preferable to provide an arbitrary light shielding means on the upper portion of the outer tube of the light bulbs 15, 16 and 17. As the light-shielding means, it is possible to employ means such as covering with a light-shielding cover, or covering with the metal films 15a, 16a, 17a as in this embodiment. The lighting time is usually from evening to night, turning on / off the light bulbs 15, 16 and 17 at predetermined time intervals.

A light-reflecting sheet 18 is laid on the ground outside the both side wall portions 32 and 33 of the lower cultivation bed 3. This light-reflecting sheet 18 is provided mainly for supplementing the strawberries in the lower cultivation bed 3 which are apt to have insufficient sunlight and temperature during the daytime with reflected light to promote photosynthesis. Further, the reflected light is also applied to the strawberries of the upper cultivation bed 2, thereby further promoting the photosynthesis of the strawberries of the upper cultivation bed 2. As the light-reflecting sheet 18, a plastic sheet such as a polyester film or a polyethylene film having aluminum vapor deposited on the upper surface side can be used. In addition, since it is usually laid on the ground, it is preferable to provide an appropriate pore for securing water permeability, or to use a sheet cut into strips and knitting the aluminum vapor deposition sheet.

In the strawberry cultivating apparatus of the present embodiment having such a configuration, the strawberries grown in the lower cultivating bed 3 are irradiated with light from the bulbs 15, 16 and 17 at night, and light is reflected during the daytime. The light reflected by the property sheet 18 is received. Therefore, it is possible to ensure that the photoperiod and photosynthesis are not significantly inferior to those of strawberries grown in the upper cultivation bed 2. Even when the forced cultivation is performed, the difference in the light condition and the temperature condition between the one grown in the upper cultivation bed 2 and the one grown in the lower cultivation bed 3 is smaller than that of the conventional one. The strawberries cultivated in can also maintain a semi-diapause state, and reproductive growth and vegetative growth can be balanced.

Experimental Example 40 seedlings were planted in the upper cultivation bed 2 at 25 cm intervals, and 40 seedlings were also planted in the lower cultivation bed 3 at 25 cm intervals. From the time of planting to the harvesting season, after every sunset, from 18:00, the bulbs 15, 16 and 17 were turned on for 15 minutes and turned off for 45 minutes.

(Comparative Example) Seedlings having the same number of strains as in the experimental example were planted in the upper cultivation bed and the lower cultivation bed. No light-reflecting sheet was laid or illuminated. The yields of the experimental example and the comparative example are shown in Table 1. The data is the average yield per share.

[0017]

[Table 1]

From Table 1, the yield of the lower cultivating bed relative to the yield of the upper cultivating bed is about 61% in the experimental example in comparison with the total amount, whereas it is 52% in the comparative example. Therefore, in the experimental example, the difference between the yield of the upper cultivation bed and the yield of the lower cultivation bed was small.

In addition, in the experimental example, the yield of the upper cultivation bed is also increased due to the influence of the light reflecting sheet. Therefore, assuming that the upper cultivation bed is not affected by the light-reflecting sheet and there is no increase in the yield, that is, the yield of the upper cultivation bed in the comparative example and the yield of the lower cultivation bed in the experimental example. 14 7.15 / 225.57, the above ratio was about 65%, which shows how the harvesting efficiency of the lower cultivation bed of the experimental example was improved.

[0020]

[Effect of device]

 The strawberry cultivation device of the present invention includes a lighting device and a light-reflecting sheet. Therefore, the lack of light and insufficient temperature of strawberries cultivated in the lower cultivation bed can be eliminated, and the harvest efficiency in the lower cultivation bed can be improved as compared with the conventional case. In particular, the lack of light and insufficient temperature can be eliminated, so that the balance of vegetative growth and reproductive growth of strawberries grown in the lower cultivation bed can be adjusted and maintained almost in the same manner as in the upper cultivation. It is suitable as a device for forced cultivation.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing an embodiment of a strawberry cultivation device of the present invention.

FIG. 2 is a schematic cross-sectional view taken along the line AA of FIG.

FIG. 3 is a schematic cross-sectional view taken along the line BB of FIG.

[Explanation of symbols]

 1 Cultivator 2 Upper Cultivation Bed 21 Base Material 3 Lower Cultivation Bed 31 Base Material 4 Leg Member 5 Leg Member 6 Leg Member 7 Upper Stage Pipe 8 Upper Stage Pipe 9 Lower Stage Pipe 10 Lower Stage Pipe 15 Light Bulb 16 Light Bulb 17 Light Bulb 18 Light Reflective Sheet

Claims (2)

[Scope of utility model registration request] 1. A multi-stage strawberry cultivating apparatus in which a plurality of cultivating beds are arranged at predetermined intervals in the vertical direction, and cultivating is carried out in a cultivating bed arranged in a lower stage except the uppermost cultivating bed. 1. A strawberry cultivation device comprising: a lighting device capable of irradiating strawberries with light; and a light-reflecting sheet disposed outside both side wall portions of the lower cultivation bed. 2. The cultivating bed has two stages, the lighting device is disposed above the cultivating bed disposed in the lower stage, and the light-reflective sheet is provided outside both side wall portions of the lower cultivating bed. The strawberry cultivation device according to claim 1, which is provided.