JPH03108423A - Control system for water culture - Google Patents

Abstract

PURPOSE:To sufficiently grow root parts by placing a cultivation pot filled with porous soil for water culture to the growth position of plant roots in a water culture vessel and avoiding a state in which the root parts are always dipped in a culture solution by feeding or circulating the culture solution. CONSTITUTION:The interior of each cultivation pot 1 is filled with porous soil for water culture and orchids or ornamental foliage plants 2 are set in the soil for cultivation to support the cultivation pots 1 with a cultivation frame 21 and a cultivation frame pedestal 24 in a cultivation vessel 6. The orchids or ornamental foliage plants, etc., are controlled to the optimum water level and water temperature in the growth and development process of cultivation thereof by a water surface sensor 16, a water surface controller 17, a distribution panel, a water temperature controller, a concentration controller 20, etc., to directly feed oxygen from air to the root parts.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a hydroponic cultivation management system for growing plants, ornamentals, etc. by supplying a culture solution to a medium.

[Prior Art] Generally, in hydroponic cultivation, it is necessary to dissolve an appropriate amount of nutrients necessary for growing plants in a culture solution, and to dissolve effective gases such as oxygen in this culture solution. For this reason, as shown in FIG. 4, it is a hydroponic cultivation tank 6 in which the roots of the plants 2 are grown by immersing them in a predetermined amount of culture solution 25, and the culture solution 25 is supplied or circulated to this hydroponic cultivation tank 6. A flow system path 9 for this purpose is installed, and a pump 8 provided along the way sends the culture solution 25 into the hydroponic culture tank 6. In addition, a vibrator 26 for introducing effective gases such as fluid nutrients and air from outside the culture solution flow path 9 is connected, and the respective nutrients and air can be introduced simultaneously or selectively. It has become.

[Problem to be solved by the present invention] However,
Conventionally, as mentioned above, the roots of plants were simply immersed in the culture solution in the hydroponic cultivation tank. If the plants are submerged, they will not be able to retain enough oxygen for long periods of time, making oxygen deficiency likely to occur and making it difficult for plants to grow.

This is especially noticeable in hydroponic cultivation of orchids, which require a large amount of oxygen.

The hydroponic cultivation management system of the present invention was developed in view of the above problems, and its purpose is to strictly determine the most suitable water level and temperature for the growth and growth process of cultivation of indoor plants, etc. This is a hydroponic cultivation device equipped with a management system that supplies oxygen directly from the air to the roots by controlling the water level or by intermittently bringing the water level to zero.

[Means for Solving the Problem] In order to solve the above-mentioned problems and achieve the purpose, the present invention provides a management system for growing plants by hydroponic cultivation in a cultivation pot. A cultivation pot filled with porous soil up to the growth position of the plant roots is placed on a cultivation frame of a hydroponic cultivation tank, and a flow system is provided for supplying or circulating a culture solution in the hydroponic cultivation tank, This method involves supplying a certain amount of culture solution for a certain period of time according to a preset water level and water temperature program according to the growth process of the plant, or intermittently reducing the water level to zero (stopping the supply). In addition to ensuring sufficient production, it is characterized by management and control including a culture solution warmer that operates in conjunction with the temperature of the orchid culture solution during the day or at night.

[Function] According to the present invention, with the above-mentioned configuration, the roots of indoor plants or ornamental plants can be grown without conventional hydroponic cultivation, and oxygen can be supplied as needed by automatically adjusting the water level.

[Example] The present invention will be described in detail below with reference to the drawings. 1st
The figure is a sectional view of a cultivation pot and a cultivation stand according to the present invention.

FIG. 1A shows a case where the upper part of the cultivation pot is filled with porous soil 3 for hydroponic cultivation, orchid seedlings are planted, and the culture solution is supplied up to the upper limit of the program. In this case, the water level is approximately 11 times higher than the height of the pot.
5 or less, and make sure that about 15% of the entire root is submerged in water. FIG. 1B shows a case where the culture solution in FIG. 1A is completely removed (water level is zero). In this case, the roots only contain residual moisture and are not completely in contact with the culture solution.

That is, the roots are 100% exposed to air.

These controls are applied during the growing process of orchids, especially during flower bud differentiation (
(mid-growth stage) Previously, the culture solution was given for about 40 minutes out of 60 minutes.
For the remaining 20 minutes, the water level is kept at zero and controlled alternately.

After the middle stage of growth, the culture solution is supplied and stopped at intervals of approximately 30 minutes to facilitate supply of the culture solution directly to the roots from the air.

FIG. 2 shows a schematic configuration diagram of a liquid supply device for hydroponic cultivation according to the present invention. The outline of the operation of this device is as follows. Pump 8 from the culture solution tank 7 stored in the cultivation tank 6
The liquid is supplied via the liquid supply pipe 9. The liquid supply pipe 9 is provided with a branch pipe, and the liquid is ejected from the spout pipe 10 to each cultivation tank 6 through this branch pipe. Further, the cultivation tank 6 is provided with a water level adjustment cap 11, so that the water level in the cultivation tank 6 can be constantly adjusted by this water level adjustment cap. When the water level becomes higher than a certain level from this water level adjustment cap, the pipe 12 is connected to the aquarium tank 7.
will be returned to.

FIG. 3 shows a schematic configuration diagram of the hydroponic cultivation management system of the present invention. Oxygen is mixed in from the aquarium tank 7 by the pump 8 through the switching valve 14, and then from the oxygen mixing supply/discharge valve 13, and then The water is supplied to the cultivation tank 6 from the outlet 23 through a flow path consisting of 15. A vibrator 26 is connected to and removed from the upstream side of the flow path consisting of this liquid supply/drainage pipe in order to introduce fluid nutrients from outside the flow path, and its tip opening faces into the flow path. I'm here. The vibrator 26 is branched into a plurality of branch pipes that supply the respective nutrients outside the flow path, and a flow control valve 27 is installed in each branch pipe.
Each nutrient can be introduced simultaneously or selectively. In addition, the cultivation tank includes a water surface sensor 16 and a water surface controller 17.
This integral operation connects to the piping board 19, the motor 28 is operated, and the culture solution is supplied and discharged from the pump 8. Furthermore, in addition to controlling the water level, the signal circuit 18 is provided with a water temperature controller and a concentration controller 20, so that water temperature, concentration, etc. can be adjusted.

Furthermore, by providing a cultivation frame 21 and a cultivation frame 24 in the cultivation tank 6, it is possible to support the cultivation pot 1 in which the plants 2 are grown, and to maintain the plants in a state where they can remain in the culture solution for a long time. . In this way, the concentration of each component of the culture solution in the cultivation tank 6, the temperature of the culture solution, the oxygen concentration, and the liquid water level can be automatically managed.

[Effects of the Invention] As described above, in the present invention, it is possible to automatically manage the culture solution mixed with nutrients and air, and in this hydroponic culture, the orchid roots immediately absorb dissolved oxygen in the culture solution. It is suitable for plants that require a large amount of oxygen, such as indoor plants or ornamental plants, and the roots of the plants are not constantly immersed in the water culture solution, so they are forced to maintain optimal moisture. It also supplies orchid air to the roots at the optimum time, which has a very excellent and remarkable effect on root development.

[Brief explanation of drawings]

1A and 1B are cross-sectional views of the cultivation pot according to the present invention according to the water level; FIG. 2 is a schematic diagram of the liquid supply device for hydroponic cultivation according to the present invention; and FIG. A schematic configuration diagram of a hydroponic cultivation management system. FIG. 4 is a diagram showing a conventional liquid supply device for hydroponic cultivation. In the figure, 1...Cultivation pot, 2...Plant, 3...Porous soil for hydroponic cultivation, 4...Water permeable support, 5...Aquarium, 6...Cultivation tank, 7...Aquarium tank, 8...Pump, 9...Liquid supply pipe, 10...Ejection pipe, 11...Water level adjustment cap, 12...Drain pipe, 13...Oxygen mixed Supply/discharge valve, 14... Switching valve, 15... Liquid supply/drainage pipe, 16... Water level sensor, 17... Water level controller, 18
...Signal circuit, 19...Switching board, 20...Water temperature,
Concentration controller, 21...Cultivation frame, 22...Cultivation frame stand,
23... Outlet, 24... Cultivation frame, 25... Culture solution, 26... Vibrator, 27... Outflow control valve, 28
...It's a motor.

Claims (1)

[Claims] In a hydroponic cultivation management system for orchids or foliage plants, etc., grown by hydroponics in cultivation pots, the cultivation pot is filled with porous soil for hydroponic cultivation up to the position where orchid roots are grown. is placed on the cultivation frame of a hydroponic cultivation tank, and a flow system is installed in the hydroponic cultivation tank to supply or circulate the culture solution, automatically adjusting the water surface and water temperature that are optimal for the growth and growth process of the plants. 1. A hydroponic cultivation management system characterized by controlling the amount of oxygen that can be adjusted to supply sufficient oxygen to the roots.