JPH0889086A - Underlay for nursery box - Google Patents

Abstract

PURPOSE: To prevent a root from spreading through water flow holes to the lower part of a nursery box and eliminate the need for root cutting operations in transplanting by improving an underlay to be laid on the bottom of the nursery box. CONSTITUTION: This underlay for a nursery box is obtained by sandwiching a water absorbent 1b comprising pulp and a highly water absorbing resin between a sheet of tissue paper 1a on the upper side and a sheet of water- permeable and root-impenetrable paper 1c on the lower side, carrying out the embossing processing of the sandwich and forming the sandwich into one sheetlike shape. When the underlay is laid on the bottom 3a of the nursery box 3, a root 7 stops at the sheet of water-permeable and root-impenetrable paper 1c and spreads in the transverse direction. Thereby, root cutting operations in transplanting is not required.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underlay laid on the bottom of a nursery box used for seeding and raising seedlings.

[0002]

2. Description of the Related Art A description will be given with reference to FIGS.
The seedling raising box 3 is a thin rectangular box, and the bottom 3a is provided with a large number of drainage holes 3b. If the bed soil is directly put into the nursery box 1, the bed soil flows out from the drainage holes together with the irrigation. Therefore, it is possible to lay an old newspaper or an underlay sheet 9 on the bottom 3a of the nursery box 1 and then insert the bed soil 4a. Has been done.

As shown in FIG. 3, the conventional underlayment sheet 9 is as follows.
A water absorbing material 9b made of pulp and a super absorbent resin is sandwiched between upper and lower thin papers 9a and 9c and embossed to form a single sheet. When seeds 5 are sown on the bed soil 4a, covered with soil 4b, and appropriately watered, buds 6 emerge from the seeds 5 and roots 7 emerge. The root 7 extends downward. Then, the root 7 broke through the conventional underlay sheet 9 and extended from the water drainage hole 3b to below the seedling raising box 3.

Therefore, at the time of transplantation, it was necessary to cut off the root 7a extending downward from the drainage hole 3b.

[0005]

The present invention is intended to prevent the root 7 from reaching the drainage hole 3b and to eliminate the root cutting work at the time of transplantation.

[0006]

Means for Solving the Problems An explanation will be given with reference to FIGS. 1, 4 and 5. The seedling box underlayment sheet 1 according to the present invention comprises an upper thin paper 1a and a lower water-permeable, non-rooting paper 1c.
A water absorbing material 1b made of pulp and a highly water-absorbent resin is sandwiched between and, and embossed to form a single sheet. In this case, the water-permeable impermeable paper 1c has an air permeability of 7 to 9 cc / cm ² / sec. Moisture-resistant paper of. Both the thin paper and the moisture resistant paper are machine-made Japanese paper.

[0007]

When the underlay sheet 1 is laid on the bottom 3a of the seedling raising box 3, the soil 4a is put, the seeds 5 are sown, and the soil 4b is applied, and then water is appropriately applied, buds 6 emerge from the seeds 5 and roots 7 extend. . Since the root extending downward cannot extend by breaking the impermeable paper 1c, it bends and extends along the impermeable paper 1c as shown in FIG.

[0008]

EXAMPLE As shown in FIG. 5, the seedling box underlayment sheet 1 is
A water absorbent material 1b made of pulp and a super absorbent resin is sandwiched between an upper thin paper 1a and a lower water-permeable impermeable paper 1c and embossed to form a single sheet. The water-permeable impermeable paper 1c has an air permeability of 7 to 9 cc / cm.
² / sec. Moisture-resistant paper of.

As shown in FIG. 4, this underlayment sheet 1 is laid on the bottom 3a of the nursery box 3, and the bottom soil 4a is put into it, and then the seeds 5 are added.
Is sown, covered with soil 4b, and then watered.

[0010]

When the underlayment sheet 1 according to the present invention is used, the root 7 is the water-permeable, non-rootable paper 1c below the underlayment sheet 1.
Since it stops on the upper side of the plant, root cutting work at the time of transplantation is unnecessary, which can contribute to improving efficiency and reducing labor.

[Brief description of drawings]

FIG. 1 is a vertical cut front view of a nursery box immediately after seeding and irrigation.

FIG. 2 is a vertical cut front view showing a state in which a conventional underlay sheet is used and a root extends to a lower part of a nursery box.

FIG. 3 is a partially enlarged vertical cut front view of a conventional underlay sheet.

FIG. 4 is a vertical cut front view showing a state in which roots are extended using an underlayment sheet according to an example of the present invention.

FIG. 5 is a partially enlarged vertical cut front view of the underlayment sheet of the present invention.

[Explanation of symbols]

 1 Underlay sheet 1a Thin paper 1b Water absorbent material 1c Water absorbent impermeable paper 3 Nursery box 3a Bottom 3b Draining hole 4a Bed soil 4b Covering soil 5 Seed 6 Bud 7 Root 7a Roots extending below draining hole 9a Underlay sheet 9a Thin water absorbing material 9c thin paper

Claims (2)

[Claims] 1. A water-absorbing material (1b) made of pulp and a superabsorbent resin is sandwiched between an upper thin paper (1a) and a lower water-permeable impermeable paper (1c) and embossed to form a sheet. An underlay sheet for a nursery box, which is formed into a sheet shape of a board. 2. The water-permeable impermeable root paper (1c) has an air permeability of 7 to 7.
9 cc / cm ² / sec. The underlay for a nursery box according to claim 1, which is a moisture-resistant paper.