JP2003174827A - Method for cultivating vegetable - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for cultivating vegetables remarkably containing Ca compared to conventional ones. <P>SOLUTION: This method for cultivating the vegetables of the aster family or the Labiatae comprising irradiating blue or yellow light through using a cultivation solution containing 0.01-0.5 wt.% of a calcium compound. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a method for cultivating vegetables, for example, a method for cultivating vegetables of the Asteraceae and Lamiaceae leafy vegetables by a hydroponic method.

[0002]

BACKGROUND OF THE INVENTION In Japan, osteoporosis is regarded as a very serious problem, and the osteoporosis population is already 1000.
It is estimated that the number exceeds 10,000. Therefore, development of Ca (calcium) supply food is called for.

[0003]

2. Description of the Related Art Conventionally, in the cultivation of vegetables, a monochromatic light is applied to the crop to increase the edible portion of the crop or to promote the growth of the crop. As for the method of cultivating vegetables containing a large amount of Ca, which is insufficient for the human body, a decisive method has not been implemented.

The present invention has been made in view of the above matters, and an object thereof is to provide a method for cultivating vegetables, which can significantly increase the content of Ca-containing vegetables as compared with conventional methods.

[0005]

In order to achieve the above object, the method for cultivating vegetables according to the present invention uses a cultivation solution containing a calcium compound in an amount of 0.01 to 0.5 w% to produce a yellow color in at least a part of the cultivation period. Alternatively, blue monochromatic light is irradiated or supplemented. Examples of the calcium compound include Ca (OH) ₂ , CaCl ₂ and Ca (N
O ₃ ) ₂ .

For example, 0.01% of CaCl ₂ was added to the cultivation solution.
Approximately 0.5 w% of Ca, which is almost the same concentration as that of the conventional cultivation solution, is included, and during the cultivation period, yellow or blue monochromatic light is radiated or supplemented to obtain the conventional 30 Vegetables of the Asteraceae or Lamiaceae family containing -50% or more of Ca can be obtained.

In addition, in the above-mentioned vegetable cultivation method, cultivation
Mg in solution equivalent to Ca or 15-70% Mg
A compound may be included (claim 2). this
In this case, Ca and Mg (magnesium)
It is possible to obtain vegetables containing a large amount compared to the past. The M
As a magnesium compound containing g, Mg (NO _Three)
_Two, MgSO_FourAnd MgCl_TwoThere is.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the drawings. In the present embodiment, a method for cultivating Sunny lettuce of the Asteraceae will be described as an example. (1) A commercially available sunny lettuce seed is immersed in sterilized water all day and night. (2) The soaked sunny lettuce seeds are sown on a cultivation base such as a polyurethane sponge. (3) Germinate the seeds, and after 7 days, 600 × 600 m
It was transplanted to the styrofoam mulch of the hydroponic cultivation apparatus of m. During this period, a 0.05 w% CaCl ₂ solution (an example of a calcium compound) was cultivated as a cultivation solution. Cultivation was carried out under the condition that five white fluorescent lamps were supplemented with four red, blue, and yellow fluorescent lamps. (4) The sunny lettuce is harvested when it grows to a leaf length of about 20 cm.

The roots of the harvested sunny lettuce are cut off, dried at 110 ° C. for one day, and ashed at 900 ° C. Dissolve the ash at this time in hydrochloric acid with a volume ratio of 1: 1,
When the amount of Ca was examined by the chelate titration method using this dissolved solution as a sample, 100 g of blue lettuce sunny lettuce was obtained.
It was found that 60 mg (hereinafter referred to as 60 mg / 100 g) of Ca was contained in the powder. On the other hand, when sunny lettuce cultivated only with white fluorescent light and commercially available sunny lettuce were treated in the same manner as above and the Ca content was examined by the chelate titration method, both were 42 mg / 10.
It contained only about 0 g. Therefore, the sunny lettuce produced by the cultivation method of the present invention is rich in Ca, which is about 50% more than the commercially available sunny lettuce, and is extremely useful as a food for preventing osteoporosis, which is currently increasing.

In addition, in the above cultivation method, 0.05 w% CaCl ₂ solution and 0.01 w% M are added to the cultivation solution.
Including a gCl ₂ solution (an example of a magnesium compound),
When this cultivation solution 4 was applied to sunny lettuce and the above white fluorescent lamp was irradiated with light supplemented with a blue fluorescent lamp, sunny lettuce containing about 60 mg / 100 g of Ca and 24 mg / 100 g or more of Mg was obtained. Was obtained.

By the way, when a person ingests Ca, Ca
It is said that it is preferable to ingest 1/2 amount of Mg at the same time in order to enhance the effect of Ca ingestion, but as described above, 0.05 w% CaCl ₂ solution and 0.01 w% are added to the cultivation solution. When the MgCl ₂ solution is added, sunny lettuce containing 50 to 30% of Ca and Mg can be obtained as compared with the conventional one.

[0012] Another embodiment of the present invention will be described with respect to the lance (Blue radish) of the Labiatae family. In this embodiment, the cultivation method will be described by taking oba (blue ginseng) as an example. (1) A commercially available seed of turmeric (blue ginseng) is immersed in sterilized water for 24 hours. (2) The soaked oba (blue ginseng) seeds are sown on a cultivation base such as a polyurethane sponge. (3) Germinate the seeds, and after 7 days, 600 × 600 m
It was transplanted to the styrofoam mulch of the hydroponic cultivation apparatus of m. During this period, a 0.05 w% CaCl ₂ solution (an example of a calcium compound) was cultivated as a cultivation solution. Cultivation was carried out under the conditions in which five white fluorescent lamps were supplemented with four red, blue, and yellow fluorescent lamps. (4) Harvesting is performed when the leaf cultivation period is about 7 to 10 cm.

The roots of the harvested Leek (blue ginseng) are excised, dried at 110 ° C. for 24 hours and ashed at 900 ° C. At this time, the ash content was dissolved in hydrochloric acid with a volume ratio of 1: 1 and the solution was used as a sample for the Ca titration method.
When I checked the quantity, the yellow-tailed oba (blue ginseng)
190 mg in 100 g (hereinafter, 190 mg / 100
It was found that Ca) (expressed as g) was included. On the other hand, the oba (blue ginseng) cultivated only with a white fluorescent lamp and the commercially available oba (blue ginseng) were treated in the same manner as above, and the amount of Ca was examined by the chelate titration method.
It contained only about 145 mg / 100 g. Therefore, in the oba (blue ginseng) produced by the cultivation method of the present invention, Ca is about 30% higher than that of the commercially available oba (blue ginseng).
Since it is abundantly contained, it is extremely useful as a food for preventing osteoporosis, which is currently increasing.

Further, in the above cultivation method, a CaCl 2 solution of 0.05 w% and M of 0.01 w% are added to the cultivation solution.
Including a gCl ₂ solution (an example of a magnesium compound),
When this cultivation solution 4 was given to oba (blue ginseng) and the above white fluorescent lamp was irradiated with light supplemented with a yellow fluorescent lamp, about 190 mg / 100 g of Ca and 120 mg /
Sunny lettuce containing 100 g or more of Mg was obtained.
(Commercial cornwort contained about 65 mg / 100 g of Mg.)

By the way, when a person ingests Ca, Ca
It is said that it is preferable to ingest 1/2 amount of Mg at the same time in order to enhance the effect of Ca ingestion, but as described above, 0.05 w% CaCl ₂ solution and 0.01 w% are added to the cultivation solution. In the case of including the MgCl ₂ solution described above, it is possible to obtain oba (blue ginseng) containing Ca and Mg, which are increased by about 30% in Ca and about 80% in Mg compared with the conventional case.

In the above-mentioned embodiments, the CaCl ₂ solution is used as the calcium compound, but instead of this, Ca (OH) ₂ or Ca (NO ₃ ) ₂ solution may be used, and magnesium may be used. As the compound, Mg (N
An O ₃ ) ₂ solution may be used. The concentration of the calcium compound is appropriately in the range of 0.01 to 0.5 w%, 0.05 w
% Is desirable. Magnesium compound is calcium 1
5 to 70 w% can be applied.

FIG. 1 schematically shows an example of an apparatus for carrying out the method for cultivating vegetables of the present invention. In this figure, 1 is a cultivation room, and a cultivation container 2 is provided in this room. ing. A cultivation base 3 made of a porous material such as a sponge and a cultivation solution 4 are provided in the cultivation container 2,
Half of the thickness of the cultivation base 3 is immersed in the cultivation solution 4, and seeds of the cultivated soybeans 5 are sown on the upper surface of the cultivation base 3 to grow the seeds. Reference numeral 6 denotes a fluorescent lamp as an illuminating lamp provided above the inside of the cultivation room 1. By combining a white fluorescent lamp and a colored fluorescent lamp, light of each color can be supplemented. Further, only white fluorescent lamps are installed, and a filter 7 for transmitting only blue or yellow light is provided below the fluorescent lamps 6, so that cultivation in a single color is also possible.

Reference numeral 8 denotes a cultivation solution storage tank provided outside the cultivation room 1, for example, which is provided with a stirring blade 10 driven by a motor 9 at the inner bottom thereof so that the cultivation solution 4 can be accommodated therein. Has been done. A cultivation solution supply pipe 12 provided with a pump 11 for supplying the cultivation solution 4 is provided between the cultivation solution storage tank 8 and the cultivation container 2.
And a cultivation solution recovery pipe 14 for collecting the cultivation solution 4 that has passed through the overflow portion 13 formed in the cultivation container 2. In addition, 15 is a filter interposed in the cultivation solution recovery pipe 14.

Further, 16 and 17 are containers respectively containing a Ca solution and a Mg solution added to the cultivation solution 4,
These containers 16 and 17 are provided above the cultivation solution storage tank 8. Further, 18 is a concentration measurement sensor for measuring the concentration of each of the Ca solution and the Mg solution in the cultivation solution 4. In addition, 19 is a water supply pipe for supplying water to the cultivation solution storage tank 8.

In the vegetable cultivating apparatus having the above-mentioned structure, sunny lettuce, which has been preliminarily dipped in sterile water and treated, is sown on the surface of the cultivating base 3 to darken the cultivating room 1. Then, when the seeds germinate, the fluorescent lamp 6 is turned on. As a result, the germinated sunny lettuce 5 is irradiated with yellow or blue light. In the case of supplementary light with a colored fluorescent lamp, the filter is removed. At this time, since the cultivation solution 4 to which the Ca solution and the Mg solution having a predetermined concentration are added is supplied into the cultivation container 4, the cultivation solution 4 is sprouted through the cultivation base 3 such as sunny lettuce or oba (blue). Jiso) 5 is absorbed. Then, sunny lettuce has a leaf length of about 20 cm, and oba (blue ginseng) has a leaf length of 7 to 10 cm.

In the above vegetable cultivating apparatus, only colored fluorescent lamps are used, white fluorescent lamps and colored fluorescent lamps are used in combination, or blue fluorescent light is obtained by using white fluorescent lamps and a filter 7. Similarly, lettuce 5 was given yellow light.
Although it is arranged to irradiate (blue) 5 instead of this, a light emitting diode which emits yellow or blue light may be used as an illuminating lamp. Alternatively, a white fluorescent lamp may be supplemented with a yellow or blue light emitting diode.

In the above-described embodiment, sunny lettuce and oba (blue ginseng) are used as vegetables to be cultivated.
However, the present invention is not limited thereto, for example, lettuce of the same Asteraceae, other vegetables of the Labiatae family, such as widely applicable to the cultivation of vegetables that are hydroponically cultivated. it can.

[0023]

INDUSTRIAL APPLICABILITY As described above, according to the present invention, it is possible to obtain a vegetable containing 30 to 50% or more of Ca as compared with the conventional one, and it is extremely useful as a food for preventing osteoporosis, which is currently increasing. You can easily get vegetables.

When Ca and Mg are added to the cultivation solution, vegetables containing a larger amount of Ca and Mg than in the conventional case can be obtained.

[Brief description of drawings]

FIG. 1 is a view schematically showing an example of an apparatus for carrying out the vegetable cultivation method of the present invention.

FIG. 2 is a graph showing a comparison of components contained in sunny lettuce according to the present invention.

FIG. 3 is a graph showing a comparison of contained components of oba (blue ginseng) according to the present invention.

[Explanation of symbols]

4 ... Cultivation solution.

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Claims (2)

[Claims] 1. A calcium compound in an amount of 0.01 to 0.5 w
% Cultivation solution is used to irradiate or supplement yellow or blue monochromatic light during the whole cultivation period or a part of the cultivation period, or cultivation of Asteraceae or Lamiaceae vegetables Method. 2. The method for cultivating Asteraceae or Lamiaceae vegetables according to claim 1, wherein the culturing solution contains Mg at a level similar to that of Ca or 15 to 70% of Mg.