JPH045404B2 - - Google Patents

Description

[Detailed Description of the Invention] A. Purpose of the Invention (Field of Industrial Application) The present invention is directed to the effective cultivation and shipping of Kaiware radish, which can be used in the forced cultivation industry of Kaiware radish, and to provide the market with high freshness. Regarding hydroponic cultivation methods.

(Prior Art) Conventionally, as disclosed in Japanese Patent Publication No. 1618/1983, as a packaging method for plants cultivated in hydroponic or other hydroponic systems, the roots of plants that have grown into a desired shape or are supported. A method has been invented in which a flexible medium is three-dimensionally compressed and reduced to a required size, and the reduced root or medium is packed by fitting it into a container of approximately the same size as the reduced root or medium, and As disclosed in Japanese Unexamined Patent Publication No. 52-43641, as a semi-adult leaf vegetable cultivator, the inside of the container is lined with cotton that the roots of the leafy vegetables can easily penetrate, and this is used as a floor cotton. Sprinkle water to a level that contains water, then place the seeds at appropriate intervals on cotton bedding, and then dissolve in water that is soft enough that the seeds that germinate on the seeds can easily break through. There was also an invention in which the entire surface was covered with a sheet of paper as a presser paper, and then water was applied to an extent that the presser paper was soaked, and the seeds were germinated and turned into semi-grown leafy vegetables.

(Problem to be Solved by the Invention) However, the former invention is a method of compressing and reducing the roots of a grown plant or a medium that supports the roots and storing them as they are in a container that is approximately the same size as the compressed and reduced size. Packaging is time-consuming, and when this method is used, the moisture impregnated in the medium is squeezed out by compression, so if the plants are shipped in containers, they will lack moisture and will significantly lose their freshness. When compressing and shrinking, it is inevitable that plants will be damaged by being squeezed with a jogger or poked with a compression rod, and the culture medium should be of a type that can withstand compression and thrusting. This method has the problem of requiring additional equipment.

The latter invention is a cultivator that spreads bedding cotton in a container, sows seeds thereon, and supplies water to the bedding cotton to germinate and grow inside the container. However, since only the water contained in bed cotton is supplied to the daikon radish and no water containing oxygen is provided, there is a problem that root rot occurs due to lack of oxygen and the product value is lost. , divide into small portions by picking up only the required amount,
Since only the roots are removed, it is very time-consuming and the amount taken out cannot be kept constant, resulting in uneven amounts in transactions.
Additionally, there was a problem in that each subdivided item had to be packaged on-site.

The present invention was made in order to solve the above-mentioned conventional problems, and the inside of a vat with small compartments is placed on a germination shelf in a greenhouse whose temperature is adjusted to a temperature suitable for hydroponic cultivation of daikon radish. A urethane medium impregnated with liquid fertilizer with a size suitable for market shipment is spread in a small room, and the daikon daikon seeds are sown on top of the urethane medium and the daikon radish is germinated and grown. By shipping,
To provide a hydroponic cultivation method for daikon radish, which can be effectively cultivated and shipped, has high product freshness and yield, and has a long shelf life during the distribution process.

B. Structure of the Invention (Means for Solving the Problems) The means of the present invention for achieving the above-mentioned object is to divide a urethane culture medium impregnated with liquid fertilizer into a urethane culture medium of a size suitable for market shipment by means of a partition. The radish seeds are placed in each chamber of a vat divided into suitable internal dimensions, and then the radish seeds are sown on a urethane medium. The daikon radish is placed on a germination shelf to germinate and grow, and when it has grown to the desired level, the daikon radish and urethane medium are placed in a transparent plastic packaging container large enough to accommodate both. be.

(Function) Since the hydroponic cultivation method according to the present invention is configured as described above, when cultivating and shipping daikon radish by this method, a flat well-shaped medium consisting of vertical pieces 14 and horizontal pieces 15 is used. A liquid fertilizer 1 containing nitrogen, phosphoric acid, calcium, etc., in a size suitable for market shipment, is placed in a vat 13 in which a large number of small chambers 17 are formed by partitioning 16 into the same size as a culture medium to be described later.
After filling each small chamber 17 with a urethane medium 18 impregnated with 9, a predetermined amount of radish seeds are sown on the urethane medium 18, and the vats 13 are sequentially placed on the germination shelf 2 arranged in the greenhouse 1. Then, lower the light-shielding curtain 12 installed on the germination shelf 2 to make the inside of the shelf like a dark room, and then add fertilizer-containing water at a frequency until germination and roots emerge, then 3 times a day in summer, and then during other seasons. Water rich in oxygen is supplied by showering twice a day, and the temperature inside the germination shelf 2 is maintained at about 20°C to 25°C by a temperature controller a.

This temperature adjustment is carried out by using a heating device 9 for heating in the winter, and by using a cooler for cooling in the summer, and further by using a circulator 11 to make the temperature of each part of the germination shelf 2 uniform. It is possible to obtain 20 daikon radish with stems that have grown to 8 cm to 10 cm in 5 days from sowing in the hot summer months and about 6 days in the cold winter months.

In this state, the butts 13 are taken out from the germination shelf 2, moved to a greening room with good sunlight, and left for about one day to fully green the two leaves of Kaiware radish 20 and perform forced cultivation. After cultivation, the daikon radish 20 whose roots are entangled in the urethane medium 18 is taken out from the small chamber 17 with the urethane medium 18 still attached, and housed in a transparent plastic resin packaging container 21 having a size that can contain both the medium and the medium.

During this storage, the kaiware radish 20 is housed after it has grown to a size that anticipates its growth after shipment, and it is possible to provide kaiware daikon 20 with high freshness by continuing to grow until immediately before use. .

(Example) Next, an example of the present invention will be described based on FIGS. 1 to 7 of the drawings.

Figure 1 is a panoramic view of a cultivation device based on the hydroponic cultivation method for Kaiware radish, in which a plurality of germination racks 2 are arranged in a substantially parallel manner in a greenhouse 1 with working passages 3 opened at necessary intervals for the work. By installing this germination shelf 2 in the greenhouse 1, maintenance and management of the temperature conditions (approximately 25° C.) required for hydroponic cultivation of daikon radish is facilitated.

FIGS. 2 and 3 show the configuration of the germination shelf 2, which includes pillars 4, girders 5, beams 6, gasshos 7, and small beams 8.
It is assembled into a house shape using structural materials made of The lowest shelf is kept at a height of about 10 cm above the ground, and the germination shelf 2 is designed to prevent corrosion and oxidation from splashing water, etc. Use materials that do not.

A shown in FIG. 2 is a temperature control device in the germination shelf 2, which is placed in the longitudinal direction of the lower center of the germination shelf 2, that is, on the ground. The hot pipe is connected to a hot water boiler or a solar water heater (none of which are shown), and hot water is circulated in order to heat and maintain the temperature inside the germination shelf 2 at about 25° C. in winter.

The temperature control device a also includes a cooler pipe 10 for cooling as a summer temperature control device (cooling device) arranged parallel to the longitudinal direction on both left and right sides at the upper part of the germination shelf 2. is provided with a large number of air blowing nozzles facing downward at a predetermined pitch in its longitudinal direction, and this cooler pipe 10
is connected to a cooler (not shown) and supplies cold air so that the temperature inside the germination shelf 2 can be maintained at about 25° C. in the summer.

Furthermore, the reference numeral 11 is a circulator in the temperature control device a installed facing inward on the upper end of the germination shelf 2.
A rotating fan is used to flow and circulate the air within the germination shelf 2 to make the temperature distribution within the shelf uniform.

Reference numeral 12 denotes a light-shielding curtain sized to cover the entire germination shelf 2, which is made of an opaque synthetic resin sheet coated with aluminum, and has a width of about 1 m to 1.5 m on both sides of the germination shelf 2. It is divided into lengths and rolled up so that they can be opened and closed to facilitate various cultivation operations.

Reference numeral 13 denotes a rectangular butt to be placed on the germination shelf 2, which has a shallow and wide tray shape measuring 47 cm in length, 75 cm in width, and 6 cm in height, and has a large number of vertical pieces 14 and horizontal pieces 15 inside.
Arrange partitions 16 arranged in a planar grid pattern by intersecting them, and make the inside of this butt 13 6.5cm long and 13cm wide.
The small chamber 17 is divided into small sections.

The vat 13 and the partition 16 are made of a material (synthetic resin, etc.) that does not undergo oxidation or corrosion.

18 is a urethane culture medium of a size suitable for market shipment, which is placed in the small chamber 17 in the vat 13. It is made of a plate-shaped open-cell urethane foam with good hydrophilicity, water absorption, and water retention properties, and is 6 cm in length and 6 cm in width. 13cm, thickness 5
The urethane culture medium 18 is made into blocks of 1.5 mm in size, and before use, the urethane culture medium 18 is soaked in a liquid fertilizer 19 for plant growth consisting of nitrogen, phosphoric acid, and calcium to sufficiently impregnate it, and then placed one by one in each compartment 17.

20 is a daikon radish that was germinated and grown from seeds sown in the urethane medium 18, and was cultivated using the hydroponic cultivation device, and the stem grew to 8 cm to 10 cm in 5 days in summer and 6 days in winter after sowing. be.

Reference numeral 21 denotes a transparent plastic resin packaging container in which the germinated and grown daikon radish 20 is housed together with the urethane medium 1;
and the urethane culture medium 18, and is composed of a container part 22 and a lid part 23, and after packaging, the overlapping flange 2 of the container part 22 and lid part 23
Fasten 4 and 25 together with staples, etc.

In addition, since the daikon radish 20 with the urethane medium 18 accommodated therein will grow even after shipping, the packaging container 21 is designed to be deep enough to allow growth of 1 cm to 2 cm from shipping to use. be.

Although not shown in the drawings, in the present invention, an irrigation means is provided on the germination shelf, and water containing fertilizer is sprinkled frequently until the germination and roots are formed, and then the sun is turned off in the summer. The water is showered three times a day (morning, noon, and evening), and twice a day (morning and evening) during other seasons, to supply water rich in oxygen and fertilizer.

C. Effects of the Invention Since the method for hydroponic cultivation of daikon radish according to the present invention is as described above, the inside of the greenhouse is maintained at an appropriate temperature for the cultivation of daikon radish by the temperature control device regardless of the level of the outside temperature. Through this method, high-quality daikon radish can be mass-produced in a planned manner and provided to the market at low cost.

By storing the urethane medium in a small chamber of a vat and flowing water into the vat, sufficient oxygen-containing water can be supplied to each medium, allowing for smooth growth without root rot.

When the daikon radish grows, it is taken out from the vat along with the urethane medium and placed in a transparent container that contains both, so the product can be packaged easily and quickly without the need for equipment, and there is no difference in the weight of each product.

Since the water is not wrung out when transferring to packaging containers, Kaiware Daikon continues to grow during the distribution process by providing sunlight through the transparent container and water containing fertilizer from the culture medium, maintaining a high degree of freshness. Therefore, it has a long shelf life during the distribution process, there is no loss in sales, and the all-important spiciness does not diminish until the consumer eats it.

It has the following unique effects.

[Brief explanation of drawings]

Figure 1 is a perspective view of the entire apparatus in the hydroponic cultivation method for daikon radish according to the present invention, Figures 2 and 3 are perspective views showing the configuration of the upper germination shelf, and Figure 4 is the upper part. A perspective view of a vat, Fig. 5 is a sectional view of the vat placed on a germination rack, and Fig. 6 is a perspective view of a radish grown in a urethane medium.
FIG. 7 is a perspective view of the radish placed in a transparent packaging container for shipping. In the figure, 1 is a greenhouse, 2 is a germination shelf, 9 is a heating device, 1
3 is a butt, 16 is a partition, 17 is a small room, 18
is urethane medium, a is temperature control device, 19 is liquid fertilizer, 2
0 is a daikon radish, and 21 is a packaging container.

Claims (1)

[Claims] 1. A urethane culture medium impregnated with liquid fertilizer of a size suitable for market shipment is placed in each chamber of a vat, which is divided by partitions into internal dimensions that match the urethane culture medium, and then radish seeds are poured onto the urethane culture medium. The seeds are sown and the vats are placed on a germination rack in a greenhouse which is kept at a temperature suitable for hydroponic cultivation of daikon radish using a temperature control device to germinate and grow the daikon radish. A method for hydroponic cultivation of daikon radish, characterized in that the urethane medium is housed in a transparent plastic resin packaging container large enough to accommodate both.