JP3336056B2 - Plant cultivation method and apparatus - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

FIELD OF THE INVENTION The present invention promotes plant growth,
The present invention relates to a plant cultivation method capable of increasing disease resistance and an apparatus therefor. INDUSTRIAL APPLICABILITY The present invention is useful for cultivation of various plants including agricultural and horticultural crops, particularly cultivation under pesticide-free and chemical-free fertilizers.

[0002]

2. Description of the Related Art Pollution of crops and soil by pesticides and chemical fertilizers has long been regarded as a problem. In organic farms without pesticides,
Efforts are being made to prevent pests using various organic fertilizers and soil activators, but the handicap of pesticide-free and chemical-free fertilizers is large, and when the yield is reduced due to diseases, etc. compared to the case where pesticides are used There are many.

[0003]

Therefore, if the growth of plants can be promoted and disease resistance can be increased without using pesticides or chemical fertilizers, it is possible to support the cultivation of pesticide-free and chemical-free fertilizers. And help to prevent soil contamination.

[0004] Accordingly, an object of the present invention is to provide means capable of promoting plant growth without using pesticides or chemical fertilizers and improving disease resistance.

[0005]

Means for Solving the Problems As a result of earnest studies, the present inventors have promoted the growth of plants by applying a fluctuating high-frequency electric field using spark discharge to growing plants, thereby promoting disease resistance. It has been found that the properties can be improved, and the present invention has been completed.

That is, the present invention provides a method for cultivating a plant, wherein a high-frequency electric field using spark discharge is applied to the plant via an antenna . The present invention also provides a plant cultivation device having a high-frequency generator using spark discharge and an external antenna connected to the device and providing a high-frequency electric field to the plant.

Hereinafter, the present invention will be described in more detail.

In the method of the present invention, a spark discharge is utilized.
A fluctuating high-frequency electric field is applied to a growing plant via an antenna . That is, a high frequency is generated using a device in which a spark discharge gap is provided in a high frequency generation circuit. In this case, in the spark discharge gap portion, the current flows very irregularly due to the spark and does not flow smoothly, so that a high-frequency fluctuation necessarily occurs. That is, both the high frequency and the electric field strength change irregularly. Thus, when a plant is given a high frequency in which the frequency and the electric field intensity change irregularly, the growth of the plant is promoted and the disease resistance is increased, as will be specifically shown in Examples described later. The center frequency of the high frequency is not particularly limited, but is suitably about 0.1 MHz to 10 MHz. Also,
The central electric field intensity acting on the plant is not particularly limited. In an embodiment described later, when an external antenna that gives a high-frequency electric field generated at a voltage of 7 kV is suspended at a height of 1.2 m above the ground, the external antenna is located below the external antenna. A sufficient effect was observed in a field of about 3.5 mx 3 m. Further, the time for applying the high-frequency electric field is not particularly limited, and in Examples described later, a clear effect was recognized at 15 minutes per day.

The apparatus of the present invention for performing the method of the present invention has a high-frequency generator using a spark discharge and an external antenna connected to the high-frequency generator for applying a high-frequency electric field to a plant. In a preferred embodiment, a DC battery, an inverter connected in series to the DC battery, a transformer for converting an AC voltage generated by the inverter to a high voltage, a spark discharge gap connected in series to a high voltage generation side of the transformer, The transformer includes a capacitor connected in parallel to the high voltage generation side of the transformer and an external antenna connected in series with the spark discharge gap, but is not limited to the one having this configuration.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below more specifically based on embodiments. However, the present invention is not limited to the following examples.

Example 1 Device Configuration A device having the circuit shown in FIG. 1 was manufactured. That is, 1
A timer 4 is connected in series to a 2 V, 35 AH DC battery 2, and an inverter 6 is connected to the timer 4. Inverter 6 converts DC 12V to 100
V, 50 Hz, and 1 A alternating current. The inverter 6 is connected to a neon transformer 8, whereby 100 V AC is converted to a high voltage current of 7 kV and 15 mA. A spark discharge gap 10 is connected in series to the high voltage generation side of the neon transformer 8. The gap width of the spark discharge gap was 5 mm. The other end of the neon transformer 8 on the high voltage generation side is grounded. In addition, a capacitance of 1000
A ceramic capacitor 12 having a pF and a withstand voltage of 30 kV is connected in parallel. An external antenna 14 is connected in series with the spark discharge gap 10. All of the above devices except the external antenna 14 and the ground terminal are accommodated in the waterproof container 16.

The external antenna had the shape shown in FIG. That is, a stainless steel plate having a thickness of 0.6 mm and a diameter of 170 mm was punched into a shape as shown in the figure. However, if an external electric field can be applied,
It goes without saying that the shape is not limited to this. The center frequency of the high frequency generated by the above device was about 1 MHz.

Example 2 Cultivation test A cultivation test was carried out using two sections 1 minute apart, 7.5 m east and west and 6 m north to south. Note that these two sections are in the same field, and the soil can be considered to be the same. In the test section, the section is divided into four equal parts by dividing it in the east-west direction and the north-south direction, and the above-mentioned external antennas are respectively suspended at a position 1.2 m above the center of each section (a total of four external antennas are installed). Hung).

On July 17, 1992, seeds of salads (salad Chinese cabbage) were directly sown in the test plot and the control plot. In the test section, a timer was set so that a high-frequency electric field was applied for 15 minutes from 5:00 am. Other conditions of the control group were the same as those of the test group, except that no high-frequency electric field was applied. Both the test plot and the control plot did not use pesticides and chemical fertilizers, and used a microbial soil conditioner (trade name “Grana”, commercially available from the additive-free food cooperative). Harvested on October 1, 1992.

The results of the harvest are shown in Table 1 below.

[0016]

[Table 1]

[0017] Due to the abnormal heat from September, white spots occurred, and as a result, the control plot was almost completely extinct. On the other hand, in the test plot, white spots similarly occurred, but a considerable amount could be harvested. The yield of the test plot was nearly 30 times that of the control plot, and a remarkable difference in disease resistance was observed, confirming the effect of the present invention.

[0018]

The method of the present invention has the effect of promoting plant growth by physical means without using pesticides or chemical fertilizers and increasing disease resistance. Therefore, the method and apparatus of the present invention are expected to greatly contribute to the cultivation of agricultural and horticultural crops, particularly to organic cultivation without pesticides.

[Brief description of the drawings]

FIG. 1 is a circuit diagram of an embodiment of the device of the present invention.

FIG. 2 shows the shape of an external antenna used in one embodiment of the device of the present invention.

Claims (3)

(57) [Claims] 1. A method for cultivating a plant, wherein a high-frequency electric field using spark discharge is applied to the plant via an antenna . 2. A high frequency generator using spark discharge,
A plant cultivation device having an external antenna connected to the external antenna for applying a high frequency electric field to the plant. 3. A DC battery, an inverter connected in series with the DC battery, a transformer for converting an AC voltage generated by the inverter to a high voltage, a spark discharge gap connected in series with a high voltage generation side of the transformer, 3. The apparatus according to claim 2, further comprising a capacitor connected in parallel to a high-voltage generating side of the transformer, and an external antenna connected in series with the spark discharge gap.