JP2006109827A - Method for cultivating plant by housing plant-cultivating medium without causing capillarity in cultivating vessel, and performing discharge and fill up of solution in vessel alternately and repeatedly - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for performing the exchange of whole air in the pore gaps of a cotton candy state structural medium used for water culture, and the exchange of the whole culturing solution absorbed and held in the medium in an optional interval for meeting with the growing characteristics of the cultivated plants, etc. <P>SOLUTION: This method for cultivating the plants is provided by housing the medium without causing capillarity (mainly the cotton candy state structural medium made from an artificial mineral fiber and having a small formed density) in a cultivating vessel, transplanting the seedlings of the plant or sowing, and then performing the fill up and discharge of cultivating solution in the cultivating vessel alternately and repeatedly in the interval meeting with the growing characteristics of the plants. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to the type and use of a plant cultivation medium. In particular, the air in the pore space (oxygen) in the whole medium is replaced at an arbitrary interval by an extremely simple method using atmospheric pressure in the growth process of vegetables and the like. [Background Art] The present invention relates to a culture medium and method capable of supplying a cultivation solution containing fertilizer components, antibacterial components, insecticidal components, etc., without any stagnation to the entire medium evenly at regular intervals.

Hydroponic cultivation of vegetables, etc., is made by molding artificial mineral fibers such as glass fibers, ceramic fibers, rock wool, etc. into various cubes, storing them in a cultivation tank as a cultivation medium, and immersing them in a solution containing fertilizer components etc. During the cultivation period, it is not assumed that the medium is used for complete replacement of air in the pore space of the medium, and complete replacement of the cultivation solution sucked by the medium. Occurrence of “stagnation” in the medium It is not done to prevent.
[Disclosure of the Invention]
[Problems to be solved by the invention]

Hydroponics is the same as in Document 1 in which the aqueous solution is poured over the medium every period of time according to the growth stage of the crop or dripped onto the medium by a drip method, and then collected in the water receiving tank and reused or the medium is grown. However, it is not possible to circulate the solution in the cultivation tank in a submerged state, but in these methods it is not possible to supply fresh air evenly to the root group equal to the root group that extends into the medium. It was possible, and it was impossible for fertilizer components. In other words, the solution containing fertilizer components dripped in drops is dripped onto the top of the cubic culture medium at a certain point, and then hangs down in the medium radially and vertically with this point as the apex. Flow or collect again and circulate again. In other words, the part covered by this radial and vertical part is always filled with fresh air and moisture, but the part outside this part moves only slightly due to osmotic pressure for fertilizer components, etc. It is difficult to move, and it may gradually come and gradually become the basis for the occurrence of disease. It is impossible with the current method to match the root group area going into the culture medium with the radial and vertical partial area with the dropping point as the apex. For example, even more easily explained, even if the sponge containing water is saturated (saturated) and put into a water stream containing a fertilizer component that flows loosely, only the surface of the sponge can be exchanged with the water in the sponge. . To replace everything, raise the sponge from the water flow, squeeze it with your hand, the water escapes, and if you open your hand, the sponge will return to its original shape and at the same time, fresh air will pass through without any gaps. When returned to the water flow, the air in the pore space is replaced with the solution, and the fertilizer components and the like are evenly distributed to the sponge, that is, the medium. The object of the present invention is to apply to the artificial mineral fiber used for hydroponics by an extremely simple method, such as the example of the sponge described above, which has not been possible until now in hydroponics. An object of the present invention is to provide a cultivation method in which roots are stretched without any gaps throughout the medium without producing any part.
[Means for solving problems]

In order to solve the above-mentioned problems, the plant cultivation method described in the claims is to give “dry” and “wet” to the culture medium by periodically repeating all drainage and full water of the solution in the cultivation tank alternately. The term “dry” as used herein does not mean that “wet”, which means that the solution in the pore space of the medium is discharged, is dried in a state where it is contained. “Wet” does not mean “wet” in the sense that the medium is submerged in the solution.
In order to make the understanding of the present invention for artificial mineral fibers easier to understand, the rice husk is an example of a familiar substitute medium of the present invention that is not 100% consistent. As it is used for buried materials, it has hydrophobic permeability and has an appropriate pore space, and even if it is immersed in a solution like a conventionally used culture medium for hydroponics, if the solution is drained, it will be saturated. There is no water (saturated) state, and fresh air can be drawn into the pore space by atmospheric pressure. In addition, rice husk is an organic material, so it can be made into fertilizer by putting it outdoors after cultivation, and rice burning is prohibited, and rice farmers are struggling to dispose of rice husk, and it is just an inexhaustible material However, it is one secondary material that can be used in the limit of the examples described later.
[The invention's effect]

The plant cultivation method of the present invention has the effect of improving the high water repellency and water retention due to the capillary action of the fibers of the medium with artificial mineral fibers. In addition, according to the cultivation method of the present invention, supply of fresh air and cultivation solution at arbitrary intervals to the entire medium in hydroponics that could not be performed until now by alternately draining and filling the cultivation tank solution. And roots can be grown in an optimal growth environment.
[Best Mode for Carrying Out the Invention]

Although the cultivation medium which does not cause capillary action used in the present invention can be raised several types, it is mainly used in the form of various cubes as artificial candy fibers (glass fiber, ceramic fiber, rock wool) as a cotton candy state structure. Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an outline of a culture medium according to an embodiment of the present invention. FIG. 2 is a schematic perspective view showing an example of use of the present invention. In order not to cause capillary action, depending on the type of material in order to reduce the molding density of artificial mineral fiber, it may collapse when draining the solution in the cultivation tank, so the medium in the cultivation tank is crushed Set up a pedestal to prevent it from being placed, and store the culture medium so as to sandwich the pedestal. As a matter of course, it is a basic practice to use a medium having a molding density (porosity) suitable for the plantability of vegetables to be cultivated, that is, those that favor good air permeability and those that do not so much.
[Example]

  Next, an example explains the present invention. In the embodiment, in order to expedite the drainage of the solution in the cultivation tank, a pipe with a large number of holes at the bottom of the cultivation tank is installed to the same length as the cultivation tank, and one end is connected to a suction pump and placed in a liquid receiving tank placed on a stand After adjusting the temperature adjustment component of the solution, the cultivation tank was filled with a irrigation tube passed over the medium using the height difference between the cultivation tank and the gantry. If the collection of the cultivation solution is not urgent and there is no urgency, it is possible to provide a valve at the bottom of the cultivation tank and collect the solution that falls naturally into the water receiving tank, which is one of the elements of vegetable growth The soil temperature (medium temperature) can also be easily managed by adjusting the interval between drainage and full water of the cultivation tank solution. In the case of vegetables (plants, etc.) that prefer a medium with a molding density that is not enough to mount a stand in the cultivation tank, a cotton candy shape containing rice husks in the cultivation tank and wrapping and holding the cotton candy medium in the cultivation tank as shown in FIG. A method of planting seedlings or seeds of vegetables (plants, etc.) on the medium is also an effective usage. Although several embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and other embodiments can be implemented within the scope described in the claims. For example, the above-mentioned embodiment is an application in house cultivation, but is not limited to this. After making a pipe with a large number of holes almost the same length as the tank at the bottom of the tank and connecting it to the suction pump, it can be used for outdoor cultivation if the medium is filled. In addition, since the present invention is easy to grow and easy to manage, it is possible to open the use of potted plants as two tanks, lower tank as a receiving tank, upper tank as a cultivation tank, and vegetables as foliage plants as shown in FIG. .

FIG. 1 is a perspective view showing the appearance of a medium used in one embodiment of the present invention.
FIG. 2 is a schematic perspective view showing a use state of the present invention.
[FIG. 3] It is an external view showing an embodiment in the case where vegetables are used as foliage plants in the present invention, and automatically opens and closes at the bottom of the cultivation tank, with the inside of the pot as two tanks, the lower tank as the receiving tank and the upper tank as the cultivation tank A valve that automatically operates and stops at the bottom of the liquid receiving tank is provided. The lower tank pump is operated when the upper tank valve is closed, and the pump is stopped when the upper tank is full. After the upper tank valve is opened, all the cultivation tank liquid is moved to the lower tank, and then the valve is closed and the pump is operated. This is performed at arbitrary intervals suitable for the cultivated vegetables (plants, etc.).
FIG. 4 is an external perspective view when seedlings or seeds such as vegetables are planted on a cotton candy-like medium that is wrapped and held in rice husks stored in a cultivation tank.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Cotton candy-like culture medium 2 ... Cultivation tank 3 ... Mount 4 ... Hole pipe 5 ... Water absorption pump 6 ... Seedling 7 ... Upper tank 8 ... Lower tank 9 ... Automatic open / close valve 10 ... Automatic pump 11 ... Rice husk 12 ... Liquid receiving tank Pedestal 13 ... Liquid receiving tank 14 ... Irrigation tube 15 ... Tube cook 16 ... Cultivation solution

Claims (2)

A plant characterized in that a plant cultivation medium that does not cause capillary action is housed in a cultivation tank, and the plant is cultivated by repeatedly filling the drainage of the cultivation solution in the tank several times a day, several times or more depending on the growth stage. Cultivation method. The drainage and full water of the cultivation solution in the tank according to claim 1 for 2 days, 3 days, 4 days, 5 days, 6 days, 7 days, 8 days, 9 days, 10 days, 11 days, 12 days, 13 days or 14 A plant characterized by cultivating a plant several times during a day or 15 days or 16 days or 17 days or ... 98 days or 99 days or 100 days, several times depending on the growth stage. Cultivation method.