JP2002345343A - Elevated culture device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable to save a fuel cost in the elevated culture in a house and intensively heat a space around plants. SOLUTION: In a culture bed (1) formed with a culture medium sheet (5) supported with lateral supporting poles (2, 3), at least one heating pipe (14, 15) is arranged around the aforesaid culture medium (8) and a warming medium is circulated. The aforesaid heating pipes (14, 15) for heating surroundings are preferably brought to be adjustable in vertical directions to precisely adjust temperatures. Further, radiation plates can be attached to the heating pipes (14, 15) for heating surroundings. In addition to the aforesaid heating pipes for heating surroundings, it is preferable to arrange medium heating pipes in the culture medium and circulate the warming medium.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to an elevated cultivation apparatus. “Elevation cultivation” is a cultivation method performed on a cultivation floor set at a position higher than the ground.

[0002]

2. Description of the Related Art When harvesting strawberry fruits that bear fruit on the ground surface, it is easy for back pain to occur if the user takes a crouched posture. This problem has been exacerbated, especially with the aging of the agricultural population. In order to solve this, elevated cultivation in which the cultivation floor is lifted from the ground and set at a height of about 50 to 150 cm has begun to spread.

[0003] A conventional cultivation bed is formed by a medium sheet supported by left and right support rods and a medium therein, and a water storage sheet provided below the medium sheet and water therein. The crop is firmly rooted in the culture medium, and is further lowered from the micropores of the culture sheet to the water storage sheet below to absorb nutrients and moisture.

[0004]

In strawberry cultivation, a large number of cultivation beds are usually provided in a greenhouse. In the cold season, hot air heating is often performed in a house using a heavy oil boiler or gas boiler until the temperature reaches an appropriate level. This heating cultivation has the following problems.

[0005] First, the heating efficiency is poor due to the equipment structure, and this fuel cost is one of the factors that increase the production price of crops.

Second, the temperature does not become uniform in the house,
Some parts are too warm or some parts are not warm enough. Especially in strawberry cultivation, it will not be satisfactory in terms of size, color and sugar content unless the fruit is sufficiently warmed,
No special consideration has been given to this point.

[0007] It is an object of the present invention to reduce the fuel cost for heating in the erect cultivation in a house and to enable intensive heating around the plant.

[0008]

According to a first aspect of the present invention, there is provided an elevated cultivation apparatus, comprising: a cultivation bed formed by a medium sheet supported by left and right support rods and a medium therein; A pipe is provided and a heating medium is circulated.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The term "periphery" as used herein means a range within about 1 m, preferably within about 50 cm, around a medium. In order to finely set the temperature, it is preferable that the position of the peripheral heating pipe be vertically adjustable. Further, a radiator plate can be attached to the peripheral heating pipe.

[0010] In addition to the peripheral heating pipe, a medium heating pipe is preferably disposed in the medium to circulate a heating medium.

Each of the pipes has a diameter of 2.0 to 3.0 cm.
It can be formed of a steel pipe or a polyethylene pipe of a certain degree.

[0012] The heating medium is generally hot water or oil. The temperature is preferably about 40 to 60 ° C. in the boiler and about 20 to 25 ° C. in the pipe.

[0013]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a cross-sectional view and a perspective view of a cultivation bed for elevated cultivation according to a first embodiment of the present invention.

The cultivation bed 1 has horizontal bars 4 set in parallel along a plurality of left and right support bars 2, 3 provided at predetermined intervals.
And a water storage sheet 6 supported by the above. In the case of strawberry cultivation, the height of the support rods 2 and 3 is 50 to
It is about 150 cm. The distance between the left and right is about 20 to 60 cm. The medium sheet 5 and the water storage sheet 6 are supported rods 2,
3 is fixed by a holding metal 7.

A culture medium 8 is placed in the culture medium sheet 5 and a crop 9 is planted thereon. Medium sheet 5
Are, for example, those filed by the present applicant (Japanese Patent Application 2000
−217476) can be adopted. In this prior application, the medium sheet is woven with fine left and right portions,
It was a woven fabric with a coarse weave in the center or a plastic sheet with fine holes in the left and right parts and relatively large holes in the center. The material of the medium sheet may be any material as long as it is hardly deteriorated by polyethylene and other materials and has heat resistance and cold resistance.

The water storage sheet 6 is set so as to be located about 3 to 10 cm below the medium sheet 5 at the farthest position. In the water storage sheet 6, a certain amount of water 12 containing fertilizers, pesticides, and the like is stored.

The present embodiment is characterized in that one medium heating pipe 13 is provided in the medium 8 and two peripheral heating pipes 14 and 15 are provided around the medium 8.

The medium heating pipe 13 is preferably disposed in the longitudinal direction at or near the center of the medium in the medium sheet 5. As shown in the figure, the peripheral heating pipes 14 and 15 are preferably placed in a longitudinal direction by being mounted on a horizontal beam 16 which is passed across the left and right support bars 2 and 3. Alternatively, a plurality of arms 19 may be set in advance on the left and right support rods 2 and 3, and one of them may be used. In this way, the vertical position of the peripheral heating pipes 14 and 15 can be changed to some extent by moving the horizontal beam 16 up and down or selecting an appropriate arm 19.

Each of the pipes 13, 14, 15 is formed of, for example, a steel pipe or a polyethylene pipe having a diameter of about 2.0 to 3.0 cm. Heat sink 14a,
15a can be attached to increase the surface area. Strawberry fruit may be placed directly on the heat sink.

Hot water heated by a heavy oil or gas boiler is circulated in each of the pipes 13, 14 and 15. Hot water temperature is about 40-60 ° C in the boiler and 20-25 in the hot water pipe.
C. is preferred.

[0022]

According to the present invention, the heating medium in each pipe can partially and effectively heat the plant. That is, the medium heating pipe 13 can warm the roots of the plant, and the surrounding heating pipes 14 and 1 can be heated.
5 can warm fruits and leaves.

[0023]

As a result of the experiment, by using the apparatus of this embodiment, the fuel cost for heating the house could be reduced to about 1/5 as compared with the conventional indoor hot air heating system. In addition, a good harvest was obtained because the area around the plant was effectively warmed.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view and a perspective view of a cultivation floor of an elevated culture according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cultivation floor 2, 3 Support rod 5 Medium sheet 6 Water storage sheet 8 Medium 12 Water 13 Medium heating pipe 14, 15 Peripheral heating pipe

Continuation of the front page F term (reference) 2B027 NB01 ND01 NE01 QD10 RA03 RA14 RA28 TA02 TA09 UB09 UB10

Claims (5)

[Claims] 1. A cultivation bed (1) formed by a medium sheet (5) supported by left and right support rods (2, 3) and a medium (8) therein, at least around the medium (8). An elevated cultivation apparatus comprising one heating pipe (14, 15) and circulating a heating medium. 2. The apparatus according to claim 1, wherein a medium heating pipe (13) is arranged in the medium (8) in addition to the heating pipes (14, 15) to circulate a heating medium. 3. The apparatus according to claim 2, wherein the peripheral heating pipes (14, 15) are vertically adjustable. 4. The apparatus according to claim 1, wherein a heat radiating plate is attached to the peripheral heating pipes (14, 15). 5. The apparatus according to claim 1, wherein the heating medium is hot water or oil.