JPH11299375A - Watering system in plant culture facility - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a watering system in a plant culture facilities, capable of supplying water to a culture bed in various water supply styles, capable of properly watering the culture bed in a state suitable for the growth of the plants and capable of circulating the water supplied to the culture bed to contrive the efficient use of the water. SOLUTION: Supply water tanks 1 and recovered water tanks 2 are disposed in a water supply system 5 ranging from a water supply source 3 to a culture bed 4 and in a water recovery system 6 for recovering excessive water from the culture bed 4 after watering, respectively. A device 7 for adding a liquid fertilizer, etc., to the supply water in the supply water tank 1 is disposed. A water supply control means for supplying the culture water containing the liquid fertilizer, etc., and stored in the supply water tanks 1 and the recovered water stored in the recovered water tanks 2 independently or as their mixture in a prescribed ratio to the culture bed 4 is disposed between the supply water tanks 1 of the supply water system 5 and the culture bed 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plant cultivation facility for cultivating plants by irrigating plants cultivated on the cultivation beds by constantly or appropriately supplying water to the cultivation beds. The present invention relates to an irrigation system in a plant cultivation facility that can appropriately manage the composition of liquid fertilizer and the like of water supplied to a cultivation bed in accordance with a state or the like and can efficiently use the water supplied to the cultivation bed by circulation.

[0002]

2. Description of the Related Art Conventionally, in a plant cultivation facility using a cultivation bed, the cultivation bed is constantly or periodically watered. (Japanese Patent Laid-Open No. 8-28)
No. 0279).

[0003]

In a conventional plant cultivation facility using a cultivation bed, the above-mentioned Japanese Patent Application Laid-Open No. 8-28027 is disclosed.
As shown in Japanese Patent Publication No. 9, water is circulated and used between a water supply source and a cultivation bed.
Liquid fertilizers and the like are mixed in a water supply line from a water supply source to a cultivation bed.

In cultivating plants, it is, of course, essential to provide fertilizers necessary for the growth of the plants. In conjunction with the proper management of fertilizers, etc., the irrigation components such as fertilizer concentration and composition ratio of the irrigation, which is repeated constantly or every appropriate time, were kept in the state where the plants were first watered, and the plants were first watered. It is known that maintaining a state of slowly changing from a state has a good effect on plant growth.

[0005] On the other hand, on the other hand, in the case of a growing plant, it is necessary to change the fertilizer component or the like to be given in a timely manner, or to repeat the change. In a cultivation facility, it is required that the composition of liquid fertilizer and the like supplied to a cultivation bed can be variously and appropriately managed in accordance with the type of plant to be cultivated, the growth state, and the like.

Therefore, the present invention is intended to address such a problem in a conventional plant cultivation facility, in which a cultivation bed is constantly or periodically supplied with water to irrigate plants cultivated in the cultivation bed. In a plant cultivation facility, a cultivation bed is supplied with liquid fertilizer or the like from a water supply source, and water is supplied repeatedly from the cultivation bed.
The water can be supplied to the cultivation bed in various water supply modes, such as adjusting the mixing ratio between the supply water from the water supply source and the recovered water, and can be appropriately watered in a state suitable for plant growth. In addition, an object of the present invention is to provide a watering system in a plant cultivation facility capable of efficiently using water supplied to a cultivation bed by circulation.

[0007]

In order to achieve the above object, a watering system in a plant cultivation facility according to the first aspect of the present invention supplies water to a cultivation bed at all times or at an appropriate time interval, thereby cultivating the cultivation bed. In a plant cultivation facility that irrigates plants and grows plants, a supply water tank and a recovery water tank are provided in a supply water system from a water supply source to a cultivation bed and a recovery water system to collect surplus water after irrigation from the cultivation bed. A liquid fertilizer blending device for blending liquid fertilizer or the like into the supply water of the supply water tank is provided.Between the supply water tank of the supply water system and the cultivation bed, the liquid fertilizer or the like is supplied from the supply water tank to the cultivation bed. A water supply system that mixes the culture water with the collected water from the collected water tank, or mixes the culture water in the supply water tank with the collected water in the collected water tank at a required ratio to supply water to the cultivation bed. It is to characterized in that it comprises a means.

[0008] Further, the watering system in the plant cultivation facility according to claim 2 of the present invention is characterized in that in the structure of claim 1,
It is characterized by comprising a path for returning a part of the recovered water from the recovered water system to the supply water tank, and a composition adjusting means such as liquid fertilizer for supplying a recovered water tank from a water supply source and maintaining a constant level.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a flowchart showing the configuration of a watering system in a plant cultivation facility according to the present invention, FIG. 2 is a partial perspective view showing the plant cultivation facility according to the present invention, and FIG. It is a partial perspective view showing other embodiments of such a plant cultivation facility.

In FIG. 1, 1 is a supply water tank, and 2 is a recovered water tank. The supply water tank 1 comprises a first tank 1a and a second tank 1b communicating therewith, and the recovered water tank 2 also comprises a first tank 2a and a second tank 2b communicating therewith. The first tank 1 a of the supply water tank 1 is supplied with water from a water supply source (groundwater source, water supply, etc.) 3, and a water supply system from the water supply source 3 to the cultivation bed 4 via the supply water tank 1. 5 (in the figure, the supply water system 5 is indicated by a solid line). Further, between the cultivation bed 4 and the collected water tank 2, there is a cultivation bed 4
, A recovery water system 6 for recovering surplus water after irrigation (recovery water system 6 is shown by a broken line in the figure).

Between the water supply source 3 of the water supply system 5 and the water supply tank 1, there is provided a liquid fertilizer blending device 7. The liquid fertilizer blending device 7 blends liquid fertilizer and the like into the water supplied from the supply water tank 1, and includes the concentration of each liquid fertilizer containing nitrogen, phosphoric acid, and potassium as the three main nutrients of the plant, hydrogen, and the like. It has a function of controlling the ion concentration (PH) and the electric conductivity (EC) of water. 8 is an adjustment valve. The first tank 1a of the supply water tank 1 has a supply water control function using a ball tap 9, a water level control function using a level sensor 10, EC
It has a function of controlling the electric conductivity of water by the sensor 11 and has an aeration blower 12.

The liquid fertilizer blending device 7 comprises a plurality of different liquid fertilizer tanks, a PH agent tank, and the like, and has an automatic control function for automatically controlling the liquid fertilizer, PH agent, and the like supplied from each of these tanks. (Not shown).

A supply water switching solenoid valve 1 is provided in a supply water system 5 between the first tank 1a of the supply water tank 1 and the cultivation bed 4.
3, a water supply pump 14 and a common water supply electromagnetic valve 15 are provided, and a series switching electromagnetic valve 16 is further provided between the common water supply electromagnetic valve 15 and each cultivation bed 4. In addition, the first tank 2a of the recovered water tank 2 is supplied with water from the water supply source 3 through the adjustment valve 17.
Further, the supply water system 5 from the first tank 2a of the collection water tank 2 to the water supply pump 14 can supply the collection water via the supply water switching electromagnetic valve 18. The first tank 2 a of the recovered water tank 2 has a supply water control function using a ball tap 19 and a water level control function using a level sensor 20.

In the recovery water system 6 for recovering the surplus water after irrigation from the cultivation bed 4, a relay tank 21 is provided with a relay pump 22. 23
Is a level sensor. From cultivation bed 4 to relay tank 2
1. The recovered water is recovered in the second tank 2b of the recovered water tank 2 via the relay pump 22, the return water switching electromagnetic valve 24. Further, the recovered water can be returned to the second tank 1b of the supply water tank 1 via the relay pump 22 and the return water switching electromagnetic valve 25. Further, as described above, the first tank 2a of the recovered water tank 2 is supplied with water from the water supply source 3 via the regulating valve 17, thereby supplying water to the recovered water tank 2 from the water supply source.
Thus, the recovered water tank 2 constitutes a liquid fertilizer or the like composition adjusting means for adjusting the composition of the liquid fertilizer or the like while maintaining the water level at a constant level.

The cultivation bed 4 forms a water bench for arranging a large number of flower pots and the like on the cultivation bed 4 and irrigating the bottom of the pots. The connection between the supply water system 5 and the recovery water system 6 of each cultivation bed 4 is connected via a quick valve 26, and the connection between the supply water system 5 and the connection to the recovery water system 6 is automatically switched by the quick valve 26. Can be

Reference numeral 27 denotes an external drainage system. The recovered water that has passed through the relay tank 21 can be drained to the outside from the external drainage system 27 under the control of the return water switching electromagnetic valve 28. Further, the water supply pump 14 of the supply water system 5 and the external drainage system 2
7, a tank external drain electromagnetic valve 29 is provided, and the tank external drain electromagnetic valve 29 and the supply water switching electromagnetic valve 1 are provided.
3 or the control of the supply water switching electromagnetic valve 18, the stored water in the supply tank 1 or the recovered water tank 2 can also be discharged from the external drainage system 27 to the outside as needed.

FIG. 1 exemplifies a plurality of cultivation beds 4 composed of first to fourth series.
The cultivation bed 4 has a large mounting area such as flower pots for each series as shown in FIG. 2, or a row of flower pots etc. for each series as shown in FIG. The embodiment may be any of various types.

In the irrigation system in the plant cultivation facility configured as described above, when water is supplied to the cultivation bed 4 for the first time, water is stored in the water supply tank 1 from the water supply source 3, and the water supply pump 14, The water is supplied through a common water supply electromagnetic valve 15 and a series switching electromagnetic valve 16, and the growing plants 4 are irrigated with water. When the water supplied to the cultivation bed 4 is supplied from the water supply source 3 to the supply water tank 1, liquid fertilizer or the like is mixed from the liquid fertilizer compounding device 7 so that the plant 3
It is a plant culture water in which the concentration of each liquid fertilizer mainly containing nitrogen, phosphoric acid, and potassium, which are macronutrients, the hydrogen ion concentration (PH) and the electric conductivity (EC) of water are adjusted.

The culture water supplied to the cultivation bed 4 is collected after a predetermined irrigation time. The collected water from the cultivation bed 4 is basically transferred from the relay tank 21 to the recovered water tank 2 by the relay pump 22. It is returned and stored in the recovered water tank 2. The collected water collected in the collected water tank 2 is repeatedly supplied to the cultivation bed 4 by the water supply pump 14 through the water supply electromagnetic valve 15 and the series switching electromagnetic valve 16 for each irrigation,
The growing plants are irrigated on the cultivation bed 4. If the amount of water decreases or the fertilizer concentration or its composition ratio decreases due to repeated irrigation of the recovered water, by controlling the feed water switching solenoid valve 13, the concentration of each liquid fertilizer, hydrogen ion The culture water in the supply water tank 1 whose concentration (PH) and electric conductivity (EC) of water are adjusted can be replenished.

As described above, the plants growing in the cultivation bed 4 are repeatedly watered with the recovered water from the first watering.
Irrigation components such as fertilizer concentration and composition ratio of irrigation can be maintained in the state of first watering the plant, and can be maintained in the state of slowly changing from the first watering of the plant, and the growth of the plant In this case, the culture water adjusted for the growth of the plant can be irrigated by appropriately supplementing the adjusted culture water from the supply water tank 1 at that time. Then, basically, the collected water is repeatedly irrigated, so that the water supplied to the cultivation bed 4 can be efficiently used by circulation.

On the other hand, for plants in the process of growing, it is necessary to change the fertilizer components and the like to be given in a timely manner, or to repeatedly change the fertilizer components. Depending on the type of plant, the growth state, etc., the ratio of culture water from the supply water tank 1 to be supplemented to the recovered water supplied to the cultivation bed 4 is controlled, and further, the irrigation from the supply water tank 1 is repeated, Supply water tank 1
And the irrigation from the recovered water tank 2 can be alternately or repeatedly repeated at an appropriate number of times. Therefore, the composition of the liquid fertilizer and the like supplied to the cultivation bed 4 can be managed in various and appropriate ways, and the growth of the plant can be promoted and the quality can be improved.

In addition, the supply of culture water to the cultivation bed 4 can be controlled by the system switching solenoid valve 16 for each system. Etc. can be appropriately managed.

[0023]

According to the present invention, in a plant cultivation facility for cultivating plants by irrigating plants cultivated in the cultivation beds by supplying water to the cultivation beds constantly or at appropriate time intervals, the cultivation beds are supplied from a water supply source. Water is supplied by mixing liquid fertilizers, etc., water is repeatedly supplied from the cultivation bed, and water is supplied by adjusting the mixing ratio of supply water from the water supply source and recovered water.
A plant that can supply water to the cultivation bed in various water supply modes, can appropriately irrigate the plant in a state suitable for growing the plant, and can efficiently utilize water supplied to the cultivation bed by circulation. An irrigation system in a cultivation facility can be provided.

[Brief description of the drawings]

FIG. 1 is a flowchart showing a configuration of an irrigation system in a plant cultivation facility according to the present invention.

FIG. 2 is a partial perspective view showing a plant cultivation facility according to the present invention.

FIG. 3 is a partial perspective view showing another embodiment of the plant cultivation facility according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Supply water tank 1a 1st tank 1b 2nd tank 2 Collected water tank 2a 1st tank 2b 2nd tank 3 Water supply source (groundwater source, water supply, etc.) 4 Cultivation bed 5 Supply water system 6 Collected water system 7 Compounding device such as liquid fertilizer 8 Adjustment Valve 9 Ball tap 10 Level sensor 11 EC sensor 12 Aeration blower 13 Supply water switching solenoid valve 14 Water supply pump 15 Common water supply solenoid valve 16 Series switching solenoid valve 17 Adjustment valve 18 Supply water switching solenoid valve 19 Ball tap 20 Level sensor 21 Relay tank 22 Relay pump 23 Level sensor 24 Return water switching solenoid valve 25 Return water switching solenoid valve 26 Quick valve 27 External drainage system 28 Return water switching solenoid valve 29 Tank external drainage solenoid valve

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Koji Horiguchi 2-21-10 Nishi, Hanyu City, Saitama Prefecture Kaneko Agricultural Machinery Co., Ltd. (72) Inventor Masahiro Yamazaki 2-21-10 Nishi 2-10-10 Nishi Hanyu City, Saitama Prefecture Kaneko Agricultural machinery Co., Ltd.

Claims (2)

[Claims] 1. A plant cultivation facility for cultivating plants by irrigating plants being cultivated in the cultivation bed by constantly or arbitrarily supplying water to the cultivation bed, a water supply system from a water supply source to the cultivation bed, and a cultivation bed. A recovery water system for recovering excess water after irrigation is provided with a supply water tank and a recovery water tank respectively, and a liquid fertilizer blending device for blending liquid fertilizer or the like with the supply water of the supply water tank is provided. Between the supply water tank and the cultivation bed, culture water mixed with liquid fertilizer etc. from the supply water tank to the cultivation bed, collected water from the collection water tank, or culture water in the supply water tank and collection water tank, respectively. An irrigation system in a plant cultivation facility, comprising water supply control means for mixing recovered water at a required ratio and supplying water to a cultivation bed. 2. A method according to claim 1, further comprising: a path for returning a part of the recovered water from the recovered water system to the supply water tank; and a liquid fertilizer or the like composition adjusting means for supplying a recovered water tank from a water supply source and maintaining a constant level. An irrigation system in the plant cultivation facility according to claim 1.