JP3002226B2 - Method and apparatus for promoting plant growth - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method for promoting the growth of various plants such as cabbage and tomatoes and vegetables and flowers, and more particularly to a method for promoting the growth thereof. Is ozone during cultivation,
The present invention relates to a method and an apparatus for cultivating by supplying a gas containing an ionized gas such as NOx.

[Background Art] Conventionally, in plant cultivation, a method has been attempted in which a component such as ozone is allowed to act on a plant to sterilize soil or add oxygen to a plant root to promote plant growth.

FIGS. 5 to 7 are for illustrating a conventional method of growing a plant. In the method shown in FIG. 5, an ozone water 3 containing dissolved ozone is added to a plant 2 planted in soil 1. It is a method of supplying. Further, in this method, it is also possible to supply an oxygen supply agent for soil instead of the ozone water 3.

In the method shown in FIG. 6, a high-voltage electric wire 5 connected to a high-voltage power supply 4 is arranged above the plant 2, and the electric force lines 6 are emitted from the electric wire 5 toward the soil 1. Is the way.

The method shown in FIG. 7 is a method of arranging the electric wire 5 connected to the high-voltage power supply 4 in the soil 1 and applying a high voltage to the soil 1.

"Problems to be Solved by the Invention" However, these conventional methods have the following problems.

In the method shown in FIG. 5, when ozone water is supplied into soil, dissolved ozone immediately reacts with organic matter in soil, and it is difficult to supply ozone water to the whole plant roots.

Further, since the effect of the soil oxygen supply agent is short, it must be supplied periodically.

Further, in the methods shown in FIGS. 6 and 7, it can not be said that the lines of electric force sufficiently act on the plants.

The present invention has been made in view of the above circumstances, and has an object to provide a method and an apparatus capable of causing a component generated by discharge such as ozone or NOx to act on a plant safely and reliably and promoting the growth thereof. I have.

[Means for Solving the Problems] In the plant growth promotion method of the present invention, the above problems are solved by injecting a gas containing ozone and NOx generated by electric discharge into a holding material such as soil where plants are planted. did.

Further, the plant growth promotion device of the present invention, an ion generator that generates ozone and NOx in the air by discharging,
A supply pipe is provided for supplying a gas containing ozone and NOx generated by the ion generator into a holding material such as soil where plants are planted.

Hereinafter, the method and apparatus of the present invention will be described in detail with reference to the drawings.

The gas containing ozone and NOx used in the present invention is ozone (O ₃ ) and NOx generated by discharges (mainly high-voltage discharges) such as corona discharge, silent discharge, and surface discharge, or a mixture of ozone and NOx with air. Used gas is used.

In addition, this discharge may be either a DC discharge or an AC discharge, but the DC discharge is suitable in that ionized gas charged to positive ions and negative ions can be easily separated, and these can be selectively used. is there. When generating ionized gas by discharge, it is desirable to introduce air containing moisture between the electrodes to generate a discharge between the electrodes.

Plants suitable for applying the method of the present invention can be applied to cereals and large plants in addition to vegetables and flowers such as cabbage, tomato, and radish. When cultivating a plant in a pot, a pipe for supplying a gas containing an ionized gas may be arranged in the pot and cultivation may be performed, and when the cultivation area is large, a gas containing the ionized gas is supplied to the soil. Cultivation is performed while burying pipes and supplying gas.

The supply of the gas containing the ionized gas is started at the time when the seeds of the cultivated plant are sown or immediately after, by utilizing the sterilizing effect of the soil by ozone or the like. The gas supply time is not particularly limited, and can be set between 1 and 24 hours per day. Usually, it is set to about 5 to 10 hours in the daytime in accordance with sunshine. Although it is desirable to supply this gas every day, it may be supplied continuously in a relatively short cycle, or may be supplied only during the particularly vigorous period of seedling or growth. Further, as a holding material for planting a plant, various materials such as soil, rock wool, permiculite, sand, perlite, pumice stone and the like can be used alone or in combination.

FIG. 1 shows an example of a cultivation apparatus suitable for carrying out the method of the present invention. This cultivation apparatus supplies air to a bubbling tank 12 by a compressor 11, and supplies air containing moisture through the bubbling tank 12 to a negative ion generator 13 and a positive ion generator 14, respectively. A gas containing an ionized gas containing ozone and NOx generated by the discharge in 13,14 is supplied to an air stone disposed at the bottom of a pot 18 for cultivating a plant 17 through branch supply pipes 15,16. It is configured to send to 19.

The ion generators 13 and 14 generate a discharge between the needle electrode 22 connected to the power supply (the negative DC high voltage generator 20 and the positive DC high voltage generator 21) and the flat electrode 23. ing. The air containing moisture supplied to these ion generators 13 and 14 is ionized by this discharge and passes through the respective branch supply pipes 15 and 16 as a gas containing ionized gas containing ozone and NOx. And supplied into each pot 18.

A pressure gauge 24 and a pressure valve 25 for adjusting the amount of introduced air are provided in a pipeline between the compressor 11 and the bubbling tank 12. Bubbling tank 12 and two ion generators 13,1
Valves 26 and 27 and flow monitors 28 and 29 are provided in the pipelines connecting the pipes 4 and 4, respectively. In addition, each branch supply line 15, 16 considers sufficient dispersion of ionized gas,
A tube clamp 30 for adjusting the gas amount is provided for each gas supply path to each pot 18.

To supply gas containing ionized gas into each pot 18 using this device, the compressor 11 is operated and a pressure gauge
24, air of a predetermined pressure is passed through the pressure valve 25 to the bubbling tank 12.
Send to The supplied air is released as bubbles from the air stones 31 arranged in the water in the bubbling tank 12, and is supplied to the negative ion generator 13 and the positive ion generator 14 containing water. Discharge occurs in these ion generators 13 and 14, and this discharge generates gas containing negative ionic and positive ionic ionized gas including ozone and NOx, and generates these negative ionic ionized gas and positive ionic ionized gas. The gas is sent to branch supply lines 15, 16, respectively. The gas sent to the branch supply pipes 15 and 16 is branched there into a plurality of pieces and supplied to the respective air stones 19 of the plurality of pots 18. The gas 32 sent to each pot 18 is
Is released into the soil in the pot 18 and acts on the plant 17 to promote its growth.

In this method, cultivation is performed by supplying a gas 32 containing ionized gas containing ozone and NOx generated by electric discharge into a pot 18 in which a plant 17 is planted. Sterilization and sterilization effect.

(B) Fertilizer effect on soil due to NOx generated (nitrogen fertilizer)
There is.

(C) Ozone and NOx have a stimulating effect on the growth point.

(D) The oxygen concentration near the root increases.

The synergistic effect of (a) to (d) promotes plant growth.

Further, in this method, the cultivation is performed by supplying the gas 32 containing the ionized gas containing ozone and NOx into the pot 18, so that the ionized gas can be applied to the plant safely and reliably, and the practicality is improved. Are better.

(Example) A cultivation test was performed using the cultivation apparatus shown in FIG.

As shown in FIG. 2, about 0.5 soil was placed in a pot in which an air stone was placed at the bottom, and a cabbage seedling immediately after germination was planted in this pot. The amount of fertilization per pot was 1.75 g of ammonium sulfate, 0.69 g of lime superphosphate, and 1.15 g of potassium chloride.

Prepare 30 of these pots and 10 of them
A test section (hereinafter referred to as a negative ion section) for supplying a gas containing a negative ionized ionized gas indicated by reference symbol A in the figure is provided, and another test section is provided.
10 are designated as test sections (hereinafter referred to as "positive ion sections") for supplying a gas containing a positive ionized gas indicated by reference symbol B in the same figure, and the remaining 10 are designated by reference symbols C in the same figure. The section was not supplied (hereinafter referred to as a control section). For the negative ion section and the positive ion section, the branch supply pipes of the cultivation equipment
A gas containing a negative ionized gas and a gas containing a positive ionized gas were supplied for 8 hours in the daytime, and all the test plots were cultivated under an external temperature environment in winter.

The gas supply conditions including the ionized gas of the cultivation equipment are as follows: the air introduction rate by the compressor 11 is 145 / min.
KV, corona discharge maximum 2 mA.

Under the above conditions, the negative ion section, the positive ion section and the control section were cultivated (cultivation days: 123 days), and the size and weight of the leaves were measured.

As shown in FIG. 2, one leaf (arbitrary leaf 40) is selected per pot, and its length L and width R are selected.
Was measured, and an average value for each test section (10 pots) was determined. Table 1 shows the results. FIG. 4 is a graph in which the average area is calculated from the dimensions L and R of the leaves shown in Table 1, and the average area of the leaves in each test section is compared.

As is clear from Table 1 and FIG. 4, the growth in the negative ion group was particularly good as compared with those in the other test groups. The growth in the positive ion group was also better than that in the control group.

The weight of the cultivated product was obtained by extracting each cultivated product after 123 days of cultivation from the pot, measuring the total weight (average value per pot), cutting the cultivated product from the cutting site 41 shown in FIG. It was divided into the underground part 43, and the weight (average value per pot) of each was measured. Table 2 shows the results.

As is clear from Table 2, in the test plots (negative ion plots and positive ion plots) cultivated by supplying the gas containing the ionized gas, the growth was promoted more than that in the control plots. In particular, the growth of the negative ion section was good.

[Effects of the Invention] As described above, according to the present invention, a gas containing ionized gas containing ozone and NOx generated by electric discharge in a holding material such as soil where a plant is planted from a seed state. (A) Sterilization and bactericidal effect of bacteria in soil by generated ozone.

(B) Fertilizer effect on soil due to NOx generated (nitrogen fertilizer)
There is.

(C) Ozone and NOx have a stimulating effect on the growth point.

(D) The oxygen concentration near the root increases.

The synergistic effect of (a) to (d) promotes plant growth.

In addition, in this method, ozone, a gas containing an ionized gas such as NOx is supplied into the holding material and cultivation is performed, so that the ionized gas can act on the plant safely and reliably, and is excellent in practicality. I have.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing an example of a plant cultivation apparatus suitably used for carrying out the present invention, and FIGS. 2 to 4 are for explaining an embodiment of the present invention. 2 is a side view showing the measurement conditions of the leaf size of the cultivated plant, FIG. 3 is a side view showing the measurement conditions of the above-ground weight and the underground weight of the plant, and FIG. 4 is the growth of the leaf of each test plot. It is a graph which compares a degree. FIG. 5 to FIG. 7 are schematic diagrams for explaining a conventional plant growth promoting method. 17 Plant 18 Pot 31 Gas containing ionized gas.

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Nao Nagahama 3-1-1-15 Toyosu, Koto-ku, Tokyo Ishikawa Shima-Harima Heavy Industries Co., Ltd. Tokyo No. 2 Factory (56) References JP-A-61-63502 (JP, A) JP-A-51-29739 (JP, A)

Claims (2)

(57) [Claims] 1. A method for promoting plant growth, comprising cultivating a plant while injecting a gas containing ozone and NOx generated by electric discharge into a holding material such as soil in which the plant is planted. 2. An ion generator for generating ozone and NOx in the air by electric discharge, and a gas containing ozone and NOx generated by the ion generator is supplied to a holding material such as soil where plants are planted. A plant growth promotion device comprising a supply pipe.