JP3624518B2 - Seedling method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for raising pot seedlings.
[0002]
[Background Art and Problems to be Solved by the Invention]
Conventionally, in growing seedlings of pot seedlings, if the seedling roots are stretched so as to be entangled with the outside of the pot, it may be difficult to take out the grown seedlings from the pot. Further, if the pot seedling floor is brittle, for example, when a rod-shaped seedling pushing tool or the like is pushed into the hole at the bottom of the pot and the pot seedling is pushed out of the pot, the extrusion becomes uncertain. Even when the seedling is pulled out from the upper side of the pot, if the pot seedling floor is in a fragile state, the floor on the bottom side of the pot will collapse.
[0003]
[Means for Solving the Problems]
The present invention has taken the following technical means to solve the above problems.
That is, a plastic flexible seedling box A in which a plurality of the pots a are vertically and horizontally connected by connecting the openings b of the pots a having holes d in the bottom c and the floors in the pots a is used. Soil filling, sowing, covering, and laying a root zone limiting sheet 1 containing a water-insoluble copper compound in the pool 2 where water is present, and the bottom surface of the pot a is in the water in the pool 2 The seedling box A was placed on the upper side of the root area-restricted sheet 1 in the pool 2 so that the seedling box A was immersed .
[0004]
[Action]
According to the seedling raising method of the present invention, a plastic flexible seedling box in which a plurality of the pots are provided vertically and horizontally by connecting the opening portions of the pots having holes in the bottom portion, and the pot is filled with floor soil Seedling, covering with soil, laying a root zone limiting sheet containing a water-insoluble copper compound in the pool where water is present, so that the bottom of the pot is immersed in the water in the pool When a box is placed on the upper side of the root area limiting sheet in the pool and the seedling is grown, the water in the pool passes through the hole at the bottom of the pot of the seedling box and passes through the soil, and the root of the seedling in the pot. is absorbed, although the roots of seedlings in the pot is extended downward, Neiki limited down pot - for bets is laid roots hardly extends from the hole in the cup bottom of the pot to the outside . At this time, the roots in the pot are extended laterally at the lower part of the pot, and the roots are entangled at the lower part of the pot.
[0005]
【The invention's effect】
According to the seedling raising method of the present invention, it is possible to grow seedlings by suppressing the roots of the pot seedlings from extending outside the pot, and the seedling roots can be taken out from the pots without tangling the pots from the outside of the pots. It becomes easy. Further, the roots are entangled with each other at the lower part of the floor of the pot seedling, so that the lower part of the floor becomes strong. Even when the seedling is pulled out from the upper side of the pot, the floor of the pot does not collapse.
[0006]
【Example】
An embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a method for raising paddy rice seedlings to be raised using a seedling box A comprising a plurality of pots a,... Arranged vertically and horizontally, and the pots a,. The seedling box A is supplied to the pool 2 where the root zone restriction sheet 1 is laid, and grows seedlings. In addition, water exists in this pool and the pot bottom surface of the seedling box A is in a state of being immersed in water. Adult seedlings are obtained after 30 to 40 days have passed in this state.
[0007]
The seedling box A is a plastic plastic seedling box and has a shape as shown in FIGS. That is, small pots a with a volume of about 3.5 cm 3 are arranged at predetermined intervals on the left and right sides, and openings b with a diameter of about 15 mm are connected to each other so that the bottom c with a diameter of about 12 mm is independent. Molded. In addition, the left and right edge portions (b) and (b) along the longitudinal direction of the seedling box A have square holes (b) for feeding the seedling box according to the longitudinal pitch of the pots a. Is provided. .. Are formed in the bottom c of each pot a,... Are configured to communicate with the outside at the bottom of the pot a. It has become. (C) is a wide space provided in the left and right (short direction) center in the longitudinal direction. The seedlings are nurtured by filling the pots a,. In this way, this seedling box is configured to grow seedlings one by one for each pot a.
[0008]
In addition, the root zone limiting sheet 1 suppresses the growth of seedling roots and does not extend the root in the vicinity of the sheet 1. Specifically, for example, there is one containing a water-insoluble copper compound as disclosed in JP-A-6-113676. Therefore, in this seedling raising method, the seedling box A which has been laid with a soil on the pool 2 where the water with the root zone restriction sheet 1 is laid, seeded and covered is placed on the upper side of the root zone restriction sheet. The seedlings are placed on the seedlings. Thereby, the water in the pool passes through the hole d at the bottom of the pot of the seedling box A and is absorbed by the roots of the seedling in the pot through the floor soil, so that the seedling grows. In addition, since the root zone limiting sheet 1 exists below the pots a,..., The roots of the seedlings extending downward are prevented from extending outside the pot from the holes d,. The seedling roots are not entangled outside the pot, and a pot seedling with a solid floor portion is obtained in the pot. In addition, the roots that grow in a branched shape from the middle part of the root where rooting has been stopped by the root zone restriction sheet 1 become entangled at the lower part of the pot, and the lower part of the floor part of the pot seedling is strengthened.
[0009]
In addition, the pot seedling thus grown can be transplanted to a field by a riding type rice transplanter 3 as shown in FIG. This riding type rice transplanter 3 has a configuration in which a six-plant seedling planting portion 5 is mounted on the rear side of the traveling vehicle body 4. Further, a fertilizer application device 6 that disperses granular fertilizer is disposed at the rear of the traveling vehicle body 4.
The seedling planting part 5 for six-row planting includes seedling box transport devices 13, 13, 13 provided for every two strips, and the seedling box mounting table 13 a at the upper and lower stages of the seedling box transport device 13. A plurality of seedling boxes are filled in 13a, and the seedling box A is appropriately supplied to the seedling extruding device 14 that extrudes and extracts the seedling from the seedling box A by the seedling box supply motor 13b. The seedling box mounting bases 13a and 13a are configured to slide the seedling box A diagonally backward and supply the seedling box A to the seedling box supply motor 13b. Although the conveyance resistance of the box A may increase, the seedling method of this embodiment can reduce the protrusion of the root from the bottom of the seedling box, and the soil is attached to the bottom of the seedling box for growing in the pool. Therefore, the conveyance resistance of the seedling box A can be reduced. The seedling extruding device 14 is a device for extruding seedlings by a horizontal row of the seedling box A with the seedling extruding pins 14a,. The pushed seedlings are held by the seedling holders 15a,... Of the seedling lowering feeding device 15 and are transported down to the seedling extracting position along a trajectory that draws an arc, and are extracted onto the lateral feeding device 17 by the seedling extracting device 16. Then, it is laterally fed by the lateral feeding device 17 and conveyed to the seedling picking position of the seedling planting device 18 one by one, and planted one by one by the seedling planting device 18 in the field.
[0010]
By the seedling raising method of the present invention, the roots of the seedlings do not extend outside the pot from the holes d,. Since a solid pot seedling can be obtained, the seedling extruding device 14 can reliably extrude the seedling and the seedling extracting device 16 can reliably extract the seedling, and the posture of the seedling planted in the field can be stabilized.
[0011]
In addition, although this Example demonstrated 6 seedling transplanting machine as a transplanting machine of the seedling raised, the seedling raising method of this invention is limited to the seedling raising method of the seedling transplanted with a 6 seedling seedling transplanting machine is not. Moreover, it does not limit to the seedling raising method of the seedling transplanted with a seedling transplanting machine.
Moreover, although the said seedling extrusion apparatus 14 was mentioned as an apparatus which takes out a seedling from the seedling box A, the apparatus which takes out a seedling from the upper side of a pot can be considered. The seedling extraction device 19 shown in FIG. 12 and FIG. 13 includes a holding part 19a that is pushed into the floor of the pot seedling from the upper side of the pot a (the opening b side of the pot a), and holds the pot seedling in the holding part 19a. It is an apparatus which takes out a pot seedling from a pot in the state which carried out. According to the seedling raising method of the present invention, since the root of the seedling does not get entangled outside the pot, the root grows in the pot and the bottom of the floor is firmly obtained. Even in this case, the floor on the pot bottom side does not collapse. In addition, the seedling extraction device 19 holds the pot seedling floor and pulls out the pot seedling from the pot, but also holds the pot seedling stem and pulls out the pot seedling from the pot. The floor of the room will not collapse.
[0012]
By the way, the seedling raising method shown in FIG. 14 lays a seedling net 21, a seedling sheet 22, and a root area restriction sheet 1 in this order in the pool 2 under the seedling box A for raising seedlings. is there. The root cutting net 21 makes it easy to remove the seedling box A because the roots extending below the seedling box A can be cut off when the seedling box A is grown. The seedling sheet 22 promotes the growth of seedlings and contains fertilizers and water retention agents. In this seedling raising method, the roots of the seedling are restrained from being extended outside the pot a by the root area limiting sheet 1, and contained in the seedling sheet 22 by the slightly lower root e extending outside the pot a. Absorbs the fertilizer that is used to promote seedling growth. Further, the root cutting net 21 creates a gap s of about 3 mm under the pot. By smoothing the water flow in this gap, the oxygen supply to the seedling is stabilized and the fertilizer contained in the seedling-growing sheet 22 Absorption of water is reduced, and the growth among seedlings is made uniform. By this seedling raising method, adult seedlings can be obtained in 25 to 35 days.
[0013]
Further, the seedling raising method shown in FIG. 15 is for raising rush seedlings. In the pool, a root cutting net 21 and a root area limiting sheet 1 are laid under the pot a. As a result, it is possible to suppress the extension of the root to the outside of the pot a, facilitate the removal of the seedling box A at the end of the seedling raising, and ensure the formation of the floor by extending the root in the pot, It is effective for rush seedlings with strong roots that have long roots. In addition, seedling f can be mixed in the pot in raising the seedlings of the igusa seedling, and the formation of the floor can be promoted by rooting of the seedling f.
[Brief description of the drawings]
FIG. 1 is a diagram showing a seedling raising method. FIG. 2 is a partial cross-sectional view showing a seedling raising method. FIG. 3 is a diagram comparing root elongation states with and without root zone restriction sheets. -State without root (b) State with root zone restriction sheet [Figure 4] Top view of seedling box [Figure 5] Side view of seedling box [Figure 6] Front view of seedling box [Figure 7] Seedling box Fig. 8 is a side view of a riding type rice transplanter. Fig. 9 is a side view of a seedling box transfer device. Fig. 10 is a cross-sectional view showing a state in which seedlings are pushed out from a pot. FIG. 12 is a side view showing an extruding device. FIG. 12 is a view showing a seedling extracting device for taking out seedlings from the upper side of the pot. FIG. FIG. 14 is a diagram showing another seedling raising method. FIG. 15 is a diagram showing a seedling raising method for rush seedlings.
A ... Seedling box, a ... Pot, b ... Opening, c ... Bottom, d ... Hole, 1 ... Root zone restriction sheet , 2 ... Pool

Claims (1)

A plastic flexible seedling box A in which a plurality of pots a are vertically and horizontally connected by connecting openings b of pots a having holes d in the bottom c and packed in floor soil in the pot a is used. In a state where the root zone limiting sheet 1 containing the water-insoluble copper compound is laid in the pool 2 where the seeds are sowed, covered and covered with water, and the bottom surface of the pot a is immersed in the water in the pool 2 A seedling raising method characterized in that the seedling box A is placed on the upper side of the root area limiting sheet 1 in the pool 2 so as to grow seedlings .

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