Seedling raising device

Abstract

To provide a seedling raising device that can prevent soil contamination by not releasing nutrients outside a container.SOLUTION: A seedling raising device 10 comprises a stepped case structure 11, soil 13 for cultivating plants housed in the case structure 11, a filter 12 separating each step of the case structure 11 and allowing water and water-soluble substances to pass through but not allowing the soil to pass through, and a circulation pump for sending water containing fertilizer components from the bottom of the lowest step of the case structure 11 to the top step of the case structure 11.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a seedling raising device. [Background technology]

[0002] In Patent Document 1, excess water and nutrients are drained through holes drilled in the cultivation container. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2022-124422 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the cultivation containers of Patent Document 1 have the problem that the discharged nutrients are exposed to the outside of the container and are discarded, resulting in waste. Also, depending on the amount of nutrients that are eluted, there is the problem that they may cause soil contamination. [Means for solving the problem]

[0005] In one embodiment of the seedling raising device, a circulation pump is used to send water containing fertilizer components from the bottom of the lowest level of a stepped case structure to the top level of the case structure. [Effects of the Invention]

[0006] According to the seedling raising device of the present disclosure, nutrients are not discharged outside the container, thereby preventing soil contamination. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a cross-sectional view showing a schematic configuration of a seedling raising apparatus according to a first embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0008] Embodiment 1 Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. Fig. 1 is a cross-sectional view showing a schematic configuration of a seedling raising apparatus according to embodiment 1. The seedling raising apparatus 10 includes a case structure 11, a filter 12, soil 13, a tank 14, a circulation pump 15, a power source 16, and a sensor 17.

[0009] The case structure 11 is a stepped case structure. The case structure 11 has retaining walls at the boundaries of each step. The bottom of the upper step of the steps of the case structure 11 is connected to the lower step via a filter 12. The bottom step of the case structure 11 is structured so that water containing dissolved fertilizer can collect at the bottom.

[0010] The filter 12 is installed between the staircase portion of the case structure 11 and the retaining wall. Fertilizer and water pass through the filter 12, but the filter 12 prevents soil from escaping. Any filter that allows water and water-soluble substances to pass through but does not allow the soil in the container to pass through can be used. For example, a sponge-like filter 12 is suitable.

[0011] The soil 13 is a growing medium for plants. The soil 13 is contained in a case structure 11.

[0012] The tank 14 is provided at the lowest level of the case structure 11. The accumulated water containing fertilizer components permeates the tank 14 and flows out to the bottom of the case structure 11.

[0013] Circulation pump 15 pumps the accumulated water containing fertilizer components from the bottom of the lowest level of case structure 11 to the top level of case structure 11. Circulation pump 15 may be equipped with a battery in case there is no power supply from power source 16. The amount of dissolved fertilizer is quantified by sensor 17 provided in the bottom level of case structure 11 and fed back to the control side of circulation pump 15 so that the optimal amount of fertilizer is applied. In this way, the water containing fertilizer components is pumped up to the top level by circulation pump 15 and circulated. This prevents the dissolved fertilizer from being wasted.

[0014] Power supply 16 is a power source that drives circulation pump 15. A solar panel, for example, is suitable for power supply 16. Surplus power generation may be stored in a battery provided in circulation pump 15.

[0015] In this way, with the seedling raising device of the first embodiment, the fertilizer flows from the bottom to the lower container by capillary action, is collected at the bottom, and is circulated and utilized effectively. In addition, soil contamination can be suppressed because the fertilizer does not flow into the external environment.

[0016] The present disclosure is not limited to the above-described embodiments and can be modified as appropriate without departing from the spirit and scope of the present disclosure. For example, there is no particular limit to the number of steps in the stepped structure for planting plants, and any number of steps can be used. Furthermore, considering efficient circulation, a slope of 30 degrees or more is desirable. Furthermore, since it is primarily intended for outdoor installation, a small, south-facing plot with sunlight is suitable. It may also be installed in locations where normal flatland cultivation is difficult, such as mountain slopes. In the above-described embodiments, excess runoff water fertilizer is sent from the bottom to the top, but this is not a requirement for ease of handling. Furthermore, a vertically stepped structure allows plants to receive more sunlight than flatland cultivation. [Explanation of symbols]

[0017] 10 Seedling raising device 11 Case structure 12 filters 13 Soil 14 tanks 15 Circulation Pump 16 Power supply 17 Sensors

Claims

[Claim 1] Stepped case structure and soil for growing plants housed in the case structure; a filter separating each step of the case structure, which allows water and water-soluble substances to pass through but does not allow the soil to pass through; A seedling raising device comprising: a circulation pump that sends water containing fertilizer components from the bottom of the lowest level of the case structure to the top level of the case structure.

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