JP2015050972A - Hydroponic device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hydroponic device which reduces decay and withering of a plant.SOLUTION: A hydroponic device comprises: a culture tank 1; a support part 2 for supporting a plant P so that a root Q of the plant P is positioned in the culture tank; a mist supplying part 3 for supplying a nutritious liquid F to the root Q of the plant P by spraying the nutritious liquid F; and a moisturizing part 4 which is formed in a bag shape including the root Q of the plant P and has permeability.

Description

  The present invention relates to a hydroponic cultivation apparatus and a hydroponic cultivation method for growing a plant by hydroponic cultivation.

  Plants that are weak in the wet state may decay from the soaked part due to the generation of bacteria or lack of oxygen when the roots are immersed in water or nutrient solution for a long time. Since plants absorb nutrients from the tips of roots, root rot prevents growth. On the other hand, even if the dry state continues, it will be damaged by drying and cause a withering. Therefore, depending on the type of plant, it is necessary to prevent water from being constantly immersed in water or a cultivation nutrient solution while supplying water to the roots during hydroponics. In contrast, using technology such as ozone, ultraviolet light and photocatalyst to disinfect the nutrient solution circulated in the cultivation device (see Patent Document 1), supplying oxygen to the nutrient solution prevents root decay The technique (refer patent document 2) etc. to do are proposed.

International Publication No. 2011-043326 JP 2009-165491 A

However, in the technique of Patent Document 1, in the case of a plant that is weak in a wet state, there is a possibility that it will rot due to the root soaking state continuing. Moreover, with the technique of patent document 2, it is difficult to suppress generation | occurrence | production itself of the microbe by immersing a root.
In view of the above problems, an object of the present invention is to provide a hydroponic cultivation apparatus and a hydroponic cultivation method that reduce the decay and death of plants.

  In order to achieve the above object, a first aspect of the present invention is a plant by spraying a cultivation tank, a support part that supports the plant so that the root part of the plant is located inside the cultivation tank, and a nutrient solution. The gist of the present invention is a hydroponic cultivation apparatus including a mist supply unit that supplies a nutrient solution to the root part of the plant and a bag-like moisture retention part that includes the root part of the plant.

  Moreover, the hydroponic cultivation apparatus according to the second aspect of the present invention is characterized in that, in the hydroponic cultivation apparatus according to the first aspect, the moisturizing part has a bellows structure that is extendable in the length direction of the root part. To do.

  Moreover, the hydroponic cultivation apparatus which concerns on the 3rd aspect of this invention WHEREIN: In the hydroponic cultivation apparatus which concerns on the 1st or 2nd aspect, a cultivation tank equips the bottom face with the discharge part which discharges | emits nutrient solution, It is characterized by the above-mentioned. And

  Moreover, in the hydroponic cultivation apparatus according to the fourth aspect of the present invention, in the hydroponic cultivation apparatus according to the first or third aspect, the moisturizing unit has a discharge hole for discharging the nutrient solution. .

  ADVANTAGE OF THE INVENTION According to this invention, the hydroponic cultivation apparatus and hydroponic cultivation method which reduce the decay and death of a plant can be provided.

It is typical sectional drawing explaining the basic composition of the hydroponic cultivation apparatus concerning a 1st embodiment of the present invention. It is typical sectional drawing explaining the basic composition of the hydroponic cultivation apparatus concerning a 2nd embodiment of the present invention. It is typical sectional drawing explaining the basic composition of the hydroponic cultivation apparatus concerning other embodiments of the present invention.

  Next, first and second embodiments of the present invention will be described with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals, and redundant description is omitted. However, it should be noted that the drawings are schematic, and the relationship between the thickness and the planar dimensions, the ratio between the drawings, and the like are different from the actual ones. In addition, the embodiments described below exemplify apparatuses and methods for embodying the technical idea of the present invention, and do not specify the configurations of the apparatuses and methods illustrated in the following embodiments. The technical idea of the present invention can be variously modified within the technical scope described in the claims.

(First embodiment)
As shown in FIG. 1, the hydroponic cultivation apparatus according to the first embodiment of the present invention includes a cultivation tank 1 and a support unit that supports the plant P so that the root part Q of the plant P is located inside the cultivation tank 10. 2, a mist supply unit 3 that supplies the nutrient solution F to the plant P, and a moisturizing unit 4.

The cultivation tank 1 is a rectangular parallelepiped container which opens the whole upper surface, for example. The support part 2 is a plate-like or sheet-like member having a through hole, for example. The support part 2 is supported by the side plate etc. of the cultivation tank 1, for example, and each hold | maintains the some plant P so that the upper part and the lower part of the some plant P may be separated in a some through-hole. The plant P is, for example, ginseng. The upper part of the plant P is the stem, leaf, etc. of the plant P. The lower part of the plant P is a root part Q or the like.

  The mist supply part 3 sprays the nutrient solution F inside the cultivation tank 1 covered with the support part 2. The mist supply unit 3 inhales and sprays the nutrient solution F from, for example, a tank in which the nutrient solution F is stored. Or you may make it the mist supply part 3 suck up the nutrient solution F collected by the lower part of the cultivation tank 1, and spray it in the air toward upper direction. Thus, the mist supply unit 3 supplies the nutrient solution F to the root Q of the plant P by spraying the nutrient solution F into the cultivation tank 1.

  The moisturizing part 4 is a bag-like member that includes the root part Q of the plant P from below. The opening of the moisturizing unit 4 is fixed to the support unit 2, for example. The root part Q is included by the support part 2 and the moisturizing part. The moisturizing unit 4 has water absorption and water permeability, and supplies the nutrient solution F sprayed from the mist supply unit 3 to the root Q.

  The moisturizing unit 4 is made of, for example, a nonwoven fabric, cloth, paper, or the like. For this reason, the moisturizing part 4 has discharge holes which are a plurality of fine through holes penetrating from the inside toward the outside. Therefore, the discharge hole of the moisturizing unit 4 can discharge the nutrient solution F to the cultivation tank 1 and reduce the retention of the nutrient solution F more than necessary inside the moisture retaining unit 4.

  For example, the moisturizing unit 4 may have a shape extending in the depth direction in FIG. In this case, a plurality of plants P can be supported by the support unit 2 and included in the single moisturizing unit 4 along the extending direction of the moisturizing unit 4. In addition, the moisturizing part 4 may have a rectangular parallelepiped shape or the like. When the nutrient solution F is accumulated in the lower part of the cultivation tank 1, the moisturizing unit 4 is adjusted in height so as not to be immersed in the nutrient solution F.

  According to the hydroponic cultivation apparatus which concerns on 1st Embodiment, by providing the mist supply part 3 and the moisture retention part 4, the drying of the root part Q can be reduced and the crack of the root part Q and the death of the plant P are reduced. be able to. Moreover, according to the hydroponic cultivation apparatus which concerns on 1st Embodiment, since the root part Q of the plant P is not immersed in the nutrient solution F, it can reduce rot by oxygen deficiency, miscellaneous bacteria, etc.

  In addition, according to the hydroponic cultivation apparatus which concerns on 1st Embodiment, since the root part Q is included by the moisture retention part 4, the physical damage of the root part Q by spraying of the nutrient solution F can be reduced.

(Second Embodiment)
The hydroponic cultivation apparatus according to the second embodiment of the present invention is different from the first embodiment in that the moisturizing part 4a has a bellows structure that can expand and contract in the length direction of the root part Q as shown in FIG. Other configurations, operations, and effects that are not described in the second embodiment are substantially the same as those in the first embodiment, and thus redundant description is omitted.

  According to the hydroponic cultivation apparatus which concerns on 2nd Embodiment, since the moisture retention part 4a can be expanded-contracted with respect to the direction where the root part Q is extended, it becomes a magnitude | size according to the magnitude | size and growth of the root part Q, and continues. The root Q can be included. Moreover, the moisturizing part 4a has a bellows structure, so that the nutrient solution F can be sufficiently absorbed and the internal atmosphere can be kept in a wet state.

(Other embodiments)
As mentioned above, although this invention was described by embodiment, it should not be understood that the statement and drawing which form a part of this indication limit this invention. From this disclosure, various alternative embodiments, examples and operational techniques will be apparent to those skilled in the art.

  For example, in the first and second embodiments already described, the cultivation tank 1 may include a discharge unit 5 that discharges the nutrient solution F on the bottom as shown in FIG. Thereby, the excess nutrient solution F can be discharged | emitted outside the cultivation tank 1, and generation | occurrence | production of the decay | rotation and microbe in the bottom face of the cultivation tank 1 can further be reduced.

  In addition to the above, it goes without saying that the present invention includes various embodiments that are not described here, such as configurations to which the first and second embodiments of the present invention are applied. Therefore, the technical scope of the present invention is defined only by the invention specifying matters according to the scope of claims reasonable from the above description.

F Nutrient solution P Plant Q Root part 1 Cultivation tank 2 Support part 3 Mist supply part 4, 4a Moisturizing part 5 Discharge part

Claims (4)

A cultivation tank,
A support part for supporting the plant so that the root part of the plant is located inside the cultivation tank;
A mist supply unit that supplies the nutrient solution to the root of the plant by spraying the nutrient solution;
A hydroponic cultivation apparatus comprising: a bag shape including a root portion of the plant, and a moisture retaining portion having water permeability.   The hydroponic cultivation apparatus according to claim 1, wherein the moisturizing unit has a bellows structure that can expand and contract in a length direction of the root.   The hydroponic cultivation apparatus according to claim 1, wherein the cultivation tank includes a discharge unit that discharges the nutrient solution on a bottom surface.   The hydroponic cultivation apparatus according to any one of claims 1 to 3, wherein the moisturizing unit has a discharge hole for discharging the nutrient solution.

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