JPH03112416A - Cultivation of lepidium sativum l - Google Patents

Abstract

PURPOSE:To enable to equalize the qualities of Lepidium sativum L and stably cultivate the Lepidium sativum L in a high density in a constant space by sowing seeds on a medium comprising a foamed plastic, germinating the seeds, raising and subsequently harvesting the raised Lepidium Sativum L as bud vegetables. CONSTITUTION:A continuous medium 3 is spread in a sowing tray 2 and seeds 4 are sowed on the medium 3. Water or a nutritive solution is preliminarily absorbed in the medium 3, and the desired seeds and water in a volume of 2-5 times the volume of the seeds the charged to a container and stirred in a suspension state wherein the seeds are homogeneously dispersed in the slim- like solution. The suspension is coated on the surface of the medium 3 with a spatula or roller. The seeds are highly densely and uniformly sowed on the surface of the medium in the dispersed and adhered state without overlapping. After sowing, the tray carrying the medium 3 is transferred into a darkened germination chamber and allowed to stand for approximately 2 days until the cotyledons of the seeds generate and open or substantially open. The medium is subsequently divided into small media and transferred into package boxes for shipment.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention involves uniformly sowing seeds on an artificial medium made of foamed plastic with cuts for easy division, germination, greening under an artificial light source, Cress grown and harvested as sprouts (Garden cress, Lepidium 5aLiv)
Also called u+s L. ) is related to the cultivation method.

(Prior Art) Techniques for cultivating cress using artificial cultivation equipment are conventionally known. For example, wood coarse valve or rock wool (
Rock wool) is used as an artificial medium, seeds are scattered on top of this, and water is sprayed to supply moisture.

Until germination, use strong (spraying), germination, rooting,
Pressure is applied from the top using cress for about 24 hours to allow the roots to penetrate the medium and absorb nutrients. After this, cotyledons are generated and a method is known in which they are allowed to green and grow under natural light (sunlight).

(Problems to be Solved by the Invention) The conventional wood coarse bulb or rock wool used in the above conventional method is harder than the roots of cress, and the roots of cress penetrate into the parts. I can't. Therefore,
If the cress is left to grow after germination, the cress will fall off the medium during harvesting and cooking, making handling inconvenient. Furthermore, quality problems arise due to shedding of the cress. In order to solve such problems, conventionally, after germination and rooting, pressure is applied in the cress process to force the roots to penetrate the medium.

This pressurizing work requires labor and equipment, and a solution to this problem has been desired.

The conventional method of scattering and sowing seeds tends to result in uneven scattering. Uneven spraying slows down the growth of cress on the medium, making it impossible to harvest uniformly grown cress.

This is particularly difficult to control when high-density sowing is required, as in the cultivation of cress. Furthermore, in the conventional method of sowing by scattering, the seeds do not stick to the medium;
It is common for seeds to be washed away when watering, resulting in uneven watering, and it was necessary to find a solution to this problem.

Traditional wood coarse bulbs or rock wool are -
Once the culture medium is cut into a certain size, it is difficult to further divide it into desired sizes. Therefore, it is difficult to divide it into small blocks during shipping and cooking. Furthermore, in addition to the case where only the tip of the leaf is used, when the stem is used, the leaves become irregular, which is inconvenient for cooking.

Conventional methods that use natural light (sunlight) in the greening growth process require cultivation shelves to be installed in a flat manner to obtain sunlight. For this reason, the space in the cultivation room cannot be used three-dimensionally,
It was economically disadvantageous. Furthermore, since the light intensity of natural light varies depending on the weather and season, it has been necessary to adjust the light intensity by supplementing with an artificial light source such as a high-pressure sodium lamp.

An object of the present invention is to provide a method for cultivating cress that solves the problems of the conventional methods, uniformizes the quality, and stably produces cress at high density in a certain space. Furthermore, the present invention provides a cultivation method that allows the cultivated cress to be conveniently used for cooking.

(Means and effects for solving the problem) The above object is the structure of the present invention, in which seeds are sown on a medium made of foamed plastic, germinated, greened using an artificial light source, grown, and harvested as sprouts. This is achieved by By using the foamed plastic medium according to the invention, the cress roots can fully penetrate and even penetrate into the medium.

Therefore, the cress is reliably retained by the culture medium, making it easy to handle, and at the same time, being able to sufficiently absorb the nutrients retained in the culture medium.

Preferably, a flexible polyurethane foam plate having a density of 0.7 to 1.6 g/cm 3 and a thickness of approximately 7 to 13+a- is used as the culture medium. This flexible polyurethane foam plate may be an industrially produced commercial product. Cuts are made in advance in this plate-shaped body so that it can be divided into sizes that match the packaging boxes for shipping cress.

This dividing cut penetrates from one surface of the plate-shaped body to the other surface opposite to this surface, and extends in a direction substantially parallel to the long plane direction of one surface of the plate-shaped body and perpendicular to the longitudinal direction. They are arranged substantially parallel to each other in the form of a lattice, and intermittently except near the intersections of the lattice and near the edges of the plate-like body. Preferably, the discontinuities near the intersection and at the edges are each about 21,
and about 1ffi11. The distance between the cuts arranged parallel to the longitudinal direction is slightly larger than one of two lengths: the length in the longitudinal direction of the bottom surface of the cress shipping packaging box and the length in the direction perpendicular thereto. short (the distance between the cuts arranged substantially parallel to the direction perpendicular to the longitudinal direction is slightly shorter than the other of the two lengths);

A continuous medium is placed on a large tray and the seeds are sown onto this medium and allowed to germinate. After that, it can be divided and put into packaging boxes, grown in a cultivation room, and then shipped together with the packaging boxes. Furthermore, it is also possible to make cuts so that the culture medium divided to the size of the packaging box can be manually divided into sizes convenient for cooking together with the grown cress.

In order to achieve uniform sowing, in the present invention, before the cress seeds germinate, they absorb water and the components on the seed surface are eluted.
The following sowing method takes advantage of the property of being covered with a slimy liquid. That is, add an appropriate amount of water to the cress seeds in a container, and make sure that the seeds are uniformly dispersed and suspended in the slime that has become sticky due to the components that have leached into the water from the seed surface. The seeds are sown on the medium by stirring and applying the suspension to the surface of the medium containing a nutrient solution necessary for the growth of cress so that the seeds are uniformly dispersed and adhered. In addition, in the preparation method of adding seeds to a container containing water, the seeds float to the top, making it difficult to obtain the desired slime-like suspension.

In order to stably and uniformly green and grow the cress, the cress that has germinated on the medium is grown in a cultivation room that uses an artificial light source consisting of fluorescent lights instead of natural light until the cotyledons open, green, and reach an appropriate stem length. Ru.

The present invention will be described in detail below based on embodiments with reference to the accompanying drawings.

(Example) FIG. 1 shows a part of a culture medium 3 made of a flexible foamed polyurethane plate having a thickness of 7+im to 13m- according to the present invention.

This consists of a continuum of small culture media 6 with a side of 4 to 110 cm, which is the size of one shipping packaging box shown in Fig. The through cuts are provided in a lattice pattern so as to be able to divide the plate into 6 pieces, but are provided intermittently, leaving about 2 mm near the intersection of the lattice and 1 ms at the edge of the plate-like body. If the small medium 6 in Fig. 2 is similarly provided with intermittently through cuts shown by lines 1, the small medium 6 can be cut into 4 pieces by hand along the cuts while the cress is held in the small medium 6 during cooking. It can be divided into small pieces 7 as shown in Fig. 3. In this case, the cut preferably leaves a distance of 3 mm from each edge of the small medium 6. This allows you to hold the medium side with your hand and cut only the leaf tips or the stems (including the stems).
Can be cooked. FIG. 2' shows an example of another cut 9 of the small medium 6.

FIG. 4 shows a state in which the continuous medium 3 shown in FIG. 1 is spread over the seeding tray 2 and seeds 4 are sown on the top surface of the medium 3. The medium 3 is made to absorb water or a nutrient solution in advance. Then, the seeding density is 3 to 5 g/100
Place the required seeds in a container so that the thickness is 0cm, add 2 to 5 times the amount of water to the seed volume, and stir.The seeds will be uniformly dispersed in the slime-like liquid in about 5 to 20 minutes. This suspension is applied to the surface of the medium 3 using a spatula or roller.This sowing method, which utilizes the viscosity of the suspension, produces seeds with high density and They are dispersed and seeded adhering to the surface of the medium without evenly overlapping.

As mentioned above, seeds that have been applied and sown with adhesion may exhibit a phenomenon in which a portion of the seeds lifts up during germination and rooting. In this case, in order to eliminate uneven growth, the seeds are pressed against the medium once or several times using a trowel, spatula, roller, etc. whose surface is coated with Teflon so that roots will grow toward the medium. Note that Teflon coating has the advantage that seeds covered with mucus do not adhere to these surfaces.

After sowing, transfer the tray containing medium 3 to the germination chamber with the surrounding area darkened. Leave it in the germination chamber for about 2 days until cotyledons develop and open or are about to open. When this state is reached, remove the medium 3 into small culture medium 6 and packaged in shipping packaging box 5 as shown in FIG.
Move to.

FIG. 6 shows an artificial light source consisting of a fluorescent lamp 11 and the small culture medium 6.
It shows a cultivation room equipped with a number of shelves lO on which packaging boxes containing products are placed. A packaging box 5 containing a small culture medium 6 for holding the growing cress is placed on the shelf 12 of this cultivation room. In the process of cultivating cress in this cultivation room, the intensity of the artificial light source is adjusted to provide light intensity of about 4000 lux to 1200 G lux to the cress, and this state is maintained for about 2 to 3 days. Furthermore, if necessary, the cress is sprayed with water to replenish the culture medium with a nutrient solution to cause the development of young leaves, greening, and elongation of the stem length.

When the cress 8 grows to the state shown in Figure 7, it goes through a pungent process and is harvested along with the small culture medium 6 while still in the packaging box 5 as sprouted or fresh vegetables and shipped as is. .

(Effect of the invention) As described above, in the cultivation method of the present invention using a foamed plastic medium, the cress process for rooting is omitted (
Therefore, labor and equipment can be reduced.

Furthermore, the sowing method according to the present invention, which utilizes the characteristics of cress seeds and applies a slime-like suspension in which seeds are uniformly dispersed and suspended, enables high-density and uniform sowing, The efficiency of using the medium is high, and it is possible to obtain cress that has grown uniformly.

By the method of cultivating cress using a notched culture medium according to the present invention, it is possible to easily divide the cress after germination, transplant it into a packaging box for shipping, and grow it, eliminating the need for conventional dividing of the culture medium at the time of shipping. Become. Therefore, the labor involved in packaging during shipping can be reduced, and damage to the cress can be avoided. Furthermore, since it can be divided into small pieces, it is extremely convenient for cooking.

In the cultivation method according to the present invention, which uses fluorescent lamps as an artificial light source, a large number of fluorescent lamps can be installed on a flat surface, and even if the culture medium is placed relatively close to the fluorescent lamps, the characteristic of fluorescent lamps is that the leaf temperature will be low. Since it does not rise, multi-level cultivation racks can be installed vertically. Therefore, there is an effect that the space in the cultivation room can be used effectively.

As described above, in the cress cultivation method according to the present invention, cress can be produced systematically in an artificial environment, so it is possible to produce high-quality and uniform products. The effect is great.

[Brief explanation of drawings]

Figure 1 is a plan view of a soft polyurethane foam medium; Figure 2 is an enlarged plan view of one small medium divided into each small medium; Figure 2' is a modification of the division pattern shown in Figure 2. Enlarged plan view: Figure 3 shows the cress with a culture medium further divided and placed horizontally for convenience during cooking; Figure 4 shows the state in which the culture medium is spread on a germination tray and cress seeds are sown on it. Figure 5 shows cress that has germinated on a medium and is transplanted into a packaging box for shipping along with the medium that holds it; Figure 6 shows a shelf with a fluorescent light and a growth packaging box. The cultivation room is shown: Figure 7 shows the state after growing and before being sent to the final spicy pickling process. Cuts, 2 Germination tray Continuous medium made of soft polyurethane foam Cresse seeds Plastic shipping packaging box Divided small medium 7 Small pieces of the divided medium further divided Harvested cress Cuts 0 Shelf 1 Fluorescent lamp J Suyu t j±1 and)AjL]JageL takko''L (.Oral Procedures Amendment October 18, 1989)

Claims (1)

[Claims] 1. A method for cultivating cress, which involves sowing the seeds on a medium made of foamed plastic, allowing them to germinate, grow, and harvesting them as sprouts. 2. The medium is a plate-shaped body whose thickness is thinner than the length of the roots of grown cultivated cress, and this plate-shaped body has a plate-like structure that penetrates from one surface of the plate-shaped body to the other surface opposite to this surface. A large number of dividing cuts are formed in a lattice shape as a whole, approximately parallel to the longitudinal direction of the one surface of the plate-shaped body, and substantially parallel to the direction orthogonal to the longitudinal direction, and are arranged in the vicinity of the intersection of the lattice and the plate-shaped body. The distance between the cuts, which are arranged except near the edges and parallel to the longitudinal direction, is the length of the bottom of the cress shipping packaging box in the longitudinal direction and the length in the direction perpendicular thereto. The length of the foamed plastic is slightly shorter than the length of one of the two lengths, and the distance between the cuts arranged substantially parallel to the longitudinal direction is slightly shorter than the length of the other of the two lengths. The method for cultivating cress according to claim 1, characterized in that: 3. The medium is a foamed plastic plate-like body surrounded by the dividing cuts, and further has dividing cuts that are not connected to the dividing cuts at intervals shorter than the above-mentioned intervals. The method for cultivating cress according to claim 2, characterized in that: . 4. The method for cultivating cress according to any one of claims 1 to 3, wherein the foamed plastic is flexible polyurethane foam. 5. Add an appropriate amount of water to the container containing the cress seeds,
The above-mentioned medium is stirred so that the seeds are uniformly dispersed and suspended in the slime that has become sticky due to the components leached into the water from the seed surface, and the medium is impregnated with a nutrient solution necessary for the growth of cress. According to any one of claims 1 to 4, the seeds are sown on the medium by applying the suspension to the surface of the medium so that the seeds are uniformly dispersed and adhered. How to cultivate cress as described. 6. After germination in the medium, the medium holding the germinated cress is divided along the cuts and placed in a shipping packaging box with an open top and allowed to grow. The method for cultivating cress according to any one of claims 2 to 5. 7. Any one of claims 1 to 6, characterized in that the cress germinated on the medium is grown in a cultivation room using a fluorescent light as a light source until the cotyledons open, green, and reach an appropriate stem length. The method for cultivating cress according to item 1.