JPH06101973B2 - Seedling raising method for collecting pots for raising seedlings - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a collective pot for raising seedlings, in which a large number of pots made of paper or a thin film such as paper are connected and assembled in order to grow soil-grown seedlings in planting stock units. When seeding seedlings with soiled seeds, or when seedlings composed of sponge-like synthetic resin seedbeds themselves form pots and a large number of them are connected to each other to sow seedlings in a certain pot, to raise seedlings, The present invention relates to a method for raising seedlings by providing a rectangular hollow body portion forming a space row portion between rows of pot bodies during seedling raising to expand each pot body region.

[0002]

2. Description of the Related Art Conventionally, as a container for transplanting seedlings of paddy rice, vegetables, tobacco, etc., a seedling container is formed by connecting a large number of open-bottomed paper pots connected to each other or forming a sponge-like synthetic resin seedbed. Separable for each strain and without a seedling raising container,
A method for raising seedlings of plants is used for this. The individual pots that compose these aggregate pots differ in size depending on the crops to be raised, the period for raising seedlings, etc., but to obtain larger transplanted seedlings, the size of the medium should be equivalent to that. Seedlings must be raised using the sago pot.

In cold regions where the cultivation period is short, it is important to grow healthy seedlings with advanced leaves in all crops such as paddy rice and vegetables, and in the case of rice cultivation, for example, within the safe heading period in that area. The point is that the seedlings should be cultivated at the time of planting. For that purpose, it is desirable that the seedling age at the time of planting is progressing, and the seedling quality is 3-
There is a trend toward growing large-sized seedlings to 3.5 seedlings of medium-sized seedlings, and further to grown-up seedlings of 3.6 leaves or more, to be used as transplanted seedlings.

[0004]

As a means for growing seedlings, it is the largest to increase the growth area per seedling unit in the nursery to increase the amount of medium per seedling unit and to extend the seedling raising period. This is a factor, and the best means is to reduce the seeding amount per container for raising seedlings. Therefore, in order to obtain adult seedlings, it is necessary to increase the pot size and increase the individual seedling raising area and capacity to raise seedlings. Not only the burden is increased, but also the workability is significantly adversely affected.

[0005]

The present inventor has conducted various studies on seedling raising methods capable of using a collective pot which does not cause the above-mentioned drawbacks, and as a result, a paper or a thin film like a paper which does not rot during seedling raising is used. A collecting pot for transplanting seedlings, which is composed of a hexagonal hollow cylindrical pot body, which is connected in series with a predetermined number of water-soluble glues and which is then laminated and pasted with a predetermined number of the same water-soluble glues. When raising seedlings using the body, seedlings are formed between each row of pots by forming a gap with a rectangular hollow body that is approximately the same length and height as the row of pots composed of the upper surface and the four side faces with a predetermined width. By doing so, it was possible to expand the growing area of the planted plant unit and raise the seedlings for about 40 days, which is a normal seedling raising period, to obtain large seedlings. In the case of a collective pot that is easily separated during transplantation, this rectangular hollow body is affixed in advance between each row of pots with a thin film such as paper or paper that easily rots during the seedling raising period during the production of the collective pot. By wearing them, the hollow bodies are decomposed and decomposed by the irrigation during seedling raising during transplanting, and the transplanting work in the transplanter can be the same transplanting work as the collecting pot body without hollow bodies. .

According to the present invention, a connecting piece is provided between each of the bowls of the fork-assembled bowl to form a continuous bowl, and in the case of a series of bowls from one end to the other, the above-mentioned is provided between each row of the bowls. Although the hollow bodies may be stuck in advance as described above, since the continuous collecting pots are easily separated by irrigation between the rows of pots once they have been brought into the state of raising seedlings, during continuous raising of seedlings between the rows. By providing a gap by installing hollow bodies and substantially expanding the seedling raising area of each pot and raising seedlings, after obtaining large seedlings, remove the hollow bodies at the time of transplantation and compress each pot row and transplant as a collective pot It is the one that can do the work.

Further, as a collecting pot, even in a collecting pot for raising seedlings, in which a large number of sponge-like synthetic resin seed beds are concatenated and aggregated so that each strain can be separated, even after sowing, the seedlings are brought into a raising state, A rectangular hollow body can be installed between the body rows to expand the seedling-growing area to form a large seedling. The width of the rectangular hollow body used in the method of the present invention is appropriately determined depending on the type of crop, the diameter of the pot, etc.
About 1/5 to 3 times the width of each bowl is commonly used when the width is at least mm.
Further, a collective pot for transplanting seedlings, which is composed of a pot made of a thin film such as paper or paper connected by these connecting pieces, or a large number of sponge-like synthetic resin seedbeds are concatenated and aggregated so that each strain can be separated. For raising seedlings in a collective pot for transplanting seedlings, the collective pots are placed in a seedling box provided with a hole for root extension, and hollow bodies are installed between each row of pots from the early or late seedling stage. , Which can be carried out by hydroponics.

[0008]

According to the present invention, as shown in the drawings, the hollow cylindrical pot body 1 is made of a thin film such as synthetic fiber paper or the like, which is made of paper which does not rot during seedling raising, such as kraft paper. Then, the pots 1 are connected in series with a water-soluble paste to form one line of pots. Next, one row of pots is laminated and laminated in a predetermined number of stages to form a collective pot. At this time, paper that easily rots during the seedling raising period, for example, kraft paper that is not rot-proofed, has a cross section Π shape. The rectangular hollow body 2 formed from the upper surface of a predetermined width and the four side surfaces of the bowl 1 having substantially the same height is inserted, adhered with a water-soluble paste, stored in a folded state, and unfolded at the time of use. Hollow bodies 2 that are spread to a predetermined width always appear on the side of one row, and rooting prevention paper is laid, or a seedling soil is placed in a collecting pot 1 installed in a seedling raising box 4 having a hole for root extension. 5
Even if the hollow body 2 is filled with, the hollow portion is maintained in the hollow body 2 and the seedling raising state in which the growing region is expanded can be maintained.

When the collecting pots are installed in the seedling raising box 4 having the root extension holes, the seedling raising can be carried out by the hydroponic method.
In the case of the collective pot body 13 in which the respective pot bodies 11 are connected by the connecting piece 15 as shown in the figure, the rectangular hollow body 12 may be attached between the rows of the pot bodies 11 at the time of manufacturing the collective pot body 13. Since the collecting pots 13 can be easily separated and widened between the rows after the seedlings are raised without sticking, the rectangular hollow bodies 12 made of thin plates such as synthetic trees are sequentially inserted and installed in this gap. Then, as shown in FIG. 4, the seedling-growing region of each pot 11 can be expanded in an orderly manner with the same row spacing and without disturbing the row of pots. Furthermore, when these collective pots 3 and 13 are transplanted, the rectangular hollow bodies 2 and 12 between the pots 1 and 11 rows are both removed and the gap is simply pushed from one side, and the pots 1 and 13 are easily compressed. Since the 11 rows are in an orderly close contact state, they can be placed on a transplanter. However, when the seedling box 14 having a bottomed hole is used for these collecting pots 3 and 13, seedlings are grown by hydroponic method. Therefore, the root extending downward from the perforated portion can be easily cut before removing the hollow bodies 2 and 12.

[0010]

Example 1 A vinylon-mixed kraft paper having a basis weight of 60 g / m 2 was used as a corrosion-resistant paper to form a hexagonal cylindrical pot 11 having a diameter of 1.8 cm and a height of 3.0 cm, and the space between the pots 11 was also formed. As shown in FIG. 4, the connecting portion 1 is made of the same quality paper as the paper on which the bowl 11 is formed.
5 were provided to connect 720 pieces of each pot body 11 to form a continuous paper cylinder collecting pot body 13. This is developed and seeds of rice seeds (cultivar Kitahikari) are sown in each pot 11 to three seeds, and a seedling-raising underlay paper Kurapupi (trade name, manufactured by Kuraray Co., Ltd.) is laid and placed on it. Raised seedlings. 14 days after sowing, in the two-leaf expansion stage of true leaves, a seedling box 14 (inner method 28c) in which a hole for root extension is provided in another bottom of the collecting pot 13 as a hole
(m × 58 cm × 3 cm) and each pot 1
After expanding the space between the rows, a rectangular hollow body 12 made of plastic having various widths shown in Table 1 was inserted and installed to provide a hollow portion, and then seedlings were continued by a hydroponic method as shown in FIG. .
For the raising of seedlings by the hydroponic method, the water level of the nutrient solution 18 is intermittently raised to the point of FIG. The root tip was constantly set to the water level while descending to the B and C points. Culture medium during seedling raising 18
Temperature of 15-25 C, PH of H2SO5 and KOH of 4.5 to 5.5, E.I. C (electrical conductivity) is 1.5-
It was controlled in the range of 2.0 ms / cm. The culture medium 18 was newly prepared and supplied when the amount of the culture medium 18 decreased.
The liquid is a continuous circulation system and the dissolved oxygen in the liquid is 6,6 ppm.
(25C) and 80% of the saturated state. The composition of this culture solution 18 was as follows throughout the entire period. (Unit: ppm) N 60, P2O5 30, K2O 120, CaO 4
0, MgO 20, Fe 2, B 0.5, Mn 0.
05, Zn 0.01, Cu 0.01, Mo 0.0
1,

[0011]

[Table 1] ---------------------------------------------- ------------------ No. Number of plants / leaves per hollow seedling Dry weight / width (pot growth area 100 per row spacing) Area Same ratio Seedling days Seedling days Seedling days 35 days 42 days 35 days 42 days 35 days 42 days ---------------------------------- ------------------------------ cm cm2 index cm cm pieces gg ----------- -------------------------------------------------- --- 1 0 0.70 100 11.8 13.5 3.1 3.1 2.40 2.65 ------------------------------------- --------------------------- 2 2 2.11 301 11.2 13.2 3.8 4.6 3.10 3.95 ------------- -------------------------------------------------- -3 4 2.35 336 11.0 13.1 3.9 4.7 3.22 4.08 --------------------------------------- ------------------------- 4 10 3.07 439 10.8 13.0 4.0 4.9 3.46 4.15 --------------- ------------------------------------------------- 5 15 3.67 524 10.5 12.8 4.2 5.1 3.55 4.27 ----------------------------------------- - ---------------------- 6 20 4.27 610 10.4 12.5 4.5 5.2 3.66 4.42 ------------------ ----------------------------------------------

(Note) No. 1 is a control example in which the hollow body 12 is not used. In the above Table 1, the pot body 11 provided with the hollow body 12 between each row of the pot bodies 11 has the same seedling-raising soil and seedling-raising days as compared with the pot body 11 having no hollow body 12 of the control example. A remarkable difference was observed in the growthability of both the number of leaves and the dry weight of the above-ground part.
If 2 is provided, by raising the seedlings for about 35 days, an adult seedling with 3.8 leaves can be obtained. In this way, the collective pot body 13 provided with the hollow body 12 that has been raised to grow seedlings is cut at the time of transplantation by cutting off the root extending from the bottom hole portion of the seedling raising box 14 and removing the hollow body 12 to obtain the collective pot body 13. Press to one end to make each row of 11 pots in close contact with each other.
The 35-day-old seedlings were placed on a dedicated rice transplanter for mechanical transplantation, but they could be performed without any trap by the same operation as the conventional collecting pot.

Example 2 The same base paper as in Example 1 was used as the rot-proof paper which constitutes the pot 1 and the paper which easily rots during the seedling raising period for forming the hollow body 2. The size of the pot 1 is in accordance with the Nitten Paper Pot Standard SM2406 (trade name, manufactured by Nippon Sugar Beet Sugar Co., Ltd.).
VA-205), 14 pieces are connected in a row to form one row of pots, and when 20 layers of this are laminated and attached, the width of the top surface is 10 between each row of the pots.
mm, height 30 mm, length 280 mm rectangular hollow body 2
Inserted and pasted. Next, this collecting pot 3 is expanded, and the field soil is sieved at the 5 mmth, and N, P2O5, and K2O are added to each 30
0 ppm was added and each pot 1 was filled from above. At this time, since the upper surface of the hollow body 2 was closed, soil was not entered, and two pots of lettuce seeds (cultivar Pallado) were sown to each pot body 1, and 15 days later, the seedlings were thinned to stand one and raised for 45 days. . The transplanting work was done manually, but due to the two hollow bodies provided between the rows of the pots, there was no entanglement of the leaves between the adjacent rows, and although the seedlings were larger than the conventional collecting pots, the transplanting work was done. Was extremely successful.

Example 3 A continuous withdrawable belt-shaped synthetic resin sponge medium (2.3 cm) in which a nursery bed is provided with slits so that it can be separated for each strain
(Square x 2.3 cm height, continuous 300 booklet) were stored in a seedling raising box 14 having a hole at the bottom used in Example 2, and leaf lettuce (cultivar Green Wave) was sown, and hydroponics of Example 2 was performed. According to the law, feed the nutrient solution 18 from the lower part of the nursery box 14 to 10
After raising seedlings for a day, separate each nursery block row,
A hollow body 12 made of a thin plastic plate having an interval between block rows of each size shown in the table was inserted and installed, and the seedlings were further continued for 20 days for planting. Table 2 shows the results of seedling quality at the time of planting and yield at the time after planting in the field.

[0015]

[Table 2] ---------------------------------------------- --------------------- Hollow body Seedling quality per planting at the time of planting Quantity of harvest No breadth Growth area (20 days seedling) Area Plant height Leaf number Dry matter 45th day 60th day mm index mm sheet mg / piece g / m index g / m index ----------------------------- -------------------------------------- 1 0 100 3.4 2.5 48 640 100 1465 100- -------------------------------------------------- --------------- 2 10 143 4.5 3.2 75 1115 174 1620 111 ------------------------- ------------------------------------------ 3 20 187 4.8 3.8 84 1260 197 1710 117 ---------------------------------------------------------------- ------------------- 4 30 230 5.1 4.2 101 1410 220 1795 123 --------------------- ---------------------------------------------- 5 40 274 5.6 4.7 116 1565 244 1845 126 ------------------------------------------------- ----------------------- 6 50 317 6.2 5.5 138 1655 259 1980 135 ------------------------------------------------- ------------------

(Note) No. 1 is a control example in which the hollow body 12 is not used. The transplanting work was performed manually, but in the area where the hollow body 12 is provided, the wider the width of the hollow body 12 is, the larger seedlings can be grown, and the planting work can be smoothly performed without entwining the leaf parts with each other. Was significantly faster than the control.

[0017]

INDUSTRIAL APPLICABILITY According to the present invention, a collective pot having the same size as that of a conventional one is placed in a seedling raising box having a hole for root extension, and seedlings are grown by a hydroponic method. By expanding the area for raising seedlings, it is possible to easily grow adult seedlings without changing the seedling raising conditions. In addition, for rice, it can be used as a rice transplanter with the same workability as conventional collective pots. When used for field crops such as lettuce, cabbage, and Chinese cabbage, the entanglement of the foliage frequently occurred between adjacent pots in the conventional collective pot, which deteriorated workability. It prevents entanglement while making large seedlings.

[Brief description of drawings]

FIG. 1 is a perspective view of a collecting pot body used in the present invention.

FIG. 2 is a vertical sectional view of the collecting pot body of FIG. 1 in use.

FIG. 3 is a developed plan view of another collecting pot (continuous collecting pot) used in the present invention.

FIG. 4 is a plan view of the collecting pot of FIG. 3 in use.

5 is a vertical cross-sectional view of FIG.

[Explanation of symbols]

 1 Bowl 2 Rectangular Hollow Body 3 Collective Bowl 11 Bowl 12 Rectangular Hollow Body 13 Continuous Collective Bowl

Claims (4)

[Claims] 1. A method for raising seedlings in a cylindrical pot body, which comprises a number of cylindrical pots made of a thin film such as paper or paper that does not decompose during the seedling raising period, in a method for raising seedlings in the pot. Place it in a seedling raising box with a root extension hole in it and install a rectangular hollow body to provide a space row between each row of pots to substantially expand the seedling growing area and store it in water. A method for raising seedlings in a collective pot for raising seedlings, which comprises raising seedlings by culturing. 2. The collecting pot for transplanting seedlings according to claim 1, wherein each pot is a collecting pot that is connected by connecting pieces between the pots and is continuous from one end to the other end. How to raise your body. 3. The method for raising seedlings for transplanting seedlings according to claim 1, wherein the gathering pots are made of a sponge-like synthetic resin seedbed. 4. The rectangular hollow body is formed of a synthetic resin thin plate, and the rectangular hollow body is installed between the rows of the pot bodies after starting the seedling raising of the collective pot bodies.
The method for raising seedlings in a collecting pot for raising and raising seedlings according to the items 1, 2 and 3.