Double seedling with root ball

Abstract

[Problem] To provide a double seedling with root balls, which is made by planting two seedlings with leaf stems, such as flower seedlings or fruit vegetable seedlings, which reduces transportation costs and improves productivity of planting labor. [Solution] The double seedlings with root balls comprise a root ball 3, which is a lump of culture soil with a reduced root zone, and two seedlings 2 planted in the root ball. The stems of the two seedlings planted in the root ball are tilted at an angle between 5° and 25°, and the two seedlings are grown with the upper ends of the seedlings spaced farther apart than the lower ends. [Selected Figure] Figure 1

Description

[Technical field]

[0001] This invention relates to a double seedling with root ball, in which two seedlings with leaves and stems, such as flower seedlings or fruit vegetable seedlings, are planted in a root ball of a lump of culture soil without a pot. [Background technology]

[0002] Patent Document 1 discloses a seedling with a root ball that is grown in a pot on a cell tray for forming a root ball, and has a root ball formed by multiple roots and the filled soil in the pot, with a core material buried in the filled soil located in the center of the root ball, the core material having a number of holes, and the seedling held by the multiple roots together with the filled soil around and at the bottom of the core material, with the multiple roots inserted into the holes. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2005-278410 A Summary of the Invention [Problem to be solved by the invention]

[0004] Patent Document 1 describes a technology in which a single seedling is planted in a root ball, but there are problems with this technology, such as rising transportation costs and the limit of productivity improvements in planting labor, which increases the total cost.

[0005] The present invention was devised in consideration of these problems, and its objective is to provide a double seedling with root balls, which is made up of two seedlings with leaf stems, such as flower seedlings or fruit vegetable seedlings, that can reduce transportation costs and improve productivity of planting labor. [Means for solving the problem]

[0006] The double seedling with root ball according to claim 1 comprises a root ball which is a lump of culture soil with a reduced root area, and two seedlings planted in the root ball; The aboveThe stems of the two seedlings are inclined at an angle between 5° and 25°, and the spacing between the upper ends of the two seedlings is greater than the spacing between the lower ends. Planted in the root pot It is characterized by the fact that

[0007] The double seedling with a root ball described in claim 2 is characterized in that, in claim 1, the root ball is small enough to be picked up with one hand.

[0008] The double seedling with a root ball described in claim 3 is characterized in that, in claim 1 or 2, the horizontal cross-sectional shape of the root ball is approximately rectangular.

[0009] The double seedling with a root ball described in claim 4 is characterized in that, in any of claims 1 to 3, it has a wooden stick near the bottom of the root ball that is longer than one side of the bottom and slightly shorter than the diagonal length of the bottom wall. Effect of the Invention

[0010] The double seedling with root ball described in claim 1 is transported to a farmer's field or the like in a state where two seedlings are planted in one small root ball without a pot, and then taken to the planting site in the field or the like and planted as is, thereby achieving the outstanding advantageous effects of significantly reducing transportation costs and significantly improving the efficiency of planting work.

[0011] The double seedlings with root balls described in claim 2 are grown compactly, which has the distinctly advantageous effects of significantly reducing transportation costs and significantly improving the efficiency of planting work.

[0012] The double seedling with root ball described in claim 3 has a horizontal cross-sectional shape of the root ball that is approximately square, which makes the horizontal cross-section wider than that of a circular shape.As a result, even when two seedlings are planted, the roots of the two seedlings are less likely to become entangled, the seedlings are less likely to become root-bound, and new roots are more likely to grow after planting.

[0013] The double seedling with a root ball described in claim 4 has the effect of being able to grow double seedlings with a root ball whose roots are not cut, because the roots that grow as new shoots grow are unlikely to grow out through the drainage holes in the bottom wall of the pot. [Brief description of the drawings]

[0014] [Figure 1] FIG. 2 is a perspective view of a double seedling with a root ball according to the present invention. [Diagram 2] FIG. 13 is an explanatory diagram of double seedlings grown in tapered box pots until planting time. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] The double seedlings with root balls 1 of this invention are finished seedlings that have reached the time to be planted, such as fruit vegetable seedlings of tomatoes, eggplants, peppers, melons, etc., or flower seedlings of pansies, salvias, etc., in other words, seedlings that have been grown to the point where they can be planted, with two seedlings planted per root ball 3.

[0016] As shown in Figure 1, the double seedling with root ball 1 of the present invention comprises a root ball 3 which is a lump of culture soil 4 with a reduced root zone, and two seedlings 2 planted in the root ball 3, and the stems 7 of each of the two seedlings 2 planted in the root ball 3 are tilted at an angle of 5° to 25°, and the two seedlings 2 are grown with the spacing between their upper ends greater than the spacing between their lower ends.

[0017] The double seedlings 1 with root balls are grown in a tapered box pot 9 to grow into seedlings 2 that have reached a stage suitable for planting. The seedling-raising method is as shown in Fig. 2, which shows a double seedling 10 being grown in a tapered box pot. The tapered box pot 9 has a drainage hole in the center of the bottom wall, and before culture soil 4 is poured on top of the bottom wall of the tapered box pot 9, a wooden rod 5 is placed on at least a part of the drainage hole, and the length of the wooden rod 5 is set to be longer than one side of the bottom wall and slightly shorter than the length of the diagonal of the bottom wall.

[0018] When new shoots sprout about one month to one and a half months after sowing the seeds, they are transplanted into the tapered box pot 9. At this time, the stems 7 of the new shoots are inclined at an angle of 5° to 25°, and two new shoots are planted in one tapered box pot 9 with the upper end of the two new shoots spaced apart from the lower end. For example, in FIG. 1, one seedling is planted at an inclination angle α and the other at an inclination angle β. In FIG. 1, the inclination angle α is about 15°, and the inclination angle β is about 20°.

[0019] Furthermore, the grafted seedlings 2 may be used in place of the sprouts. The grafting is carried out for the purpose of breeding improvement, such as grafting a variety susceptible to pests onto a variety resistant to pests or multiplying a specific individual, and the grafted seedlings 2 can also be replanted in the tapered box-type pot 9. When replanting, the stems 7 of the grafted seedlings are inclined at an angle of 5° to 25°, and two grafted seedlings are planted in one tapered box-type pot 9 with the upper end sides of the two grafted seedlings being spaced apart from each other more than the lower end sides.

[0020] Also, two new seedlings, two grafted seedlings, or a combination of one new seedling and one grafted seedling may be transplanted into one root ball 3. In any case, the double seedling with root ball 1 has a form in which two seedlings are grown in one root ball 3.

[0021] The seedlings are raised in this state for about three weeks, and when they are grown to the point where they can be planted in fields, flower beds, or pots, that is, when it is time to plant them, the root ball 3 is removed from the tapered box pot 9. In this removed state, the seedlings are transported to the farmer's field or other location where they will be planted.

[0022] Also, after removing the root ball 3 from the tapered box-shaped pot 9, the wooden rod 5 near the bottom may be removed.

[0023] During the approximately three weeks from the time of new shoots to the time when they can be planted, the roots of the two plants hardly grow in the tapered box-shaped pot 9, and the two seedlings 2 grow in an inclined position, so that the stems 7 do not bend much.

[0024] Then, the two seedlings 2 are transported in a state where they are raised in one root ball 3, and are planted in a field, a flower bed, a pot, or the like while maintaining that state.

[0025] Here, the root ball 3 is a lump of culture soil 4 that is a compacted root area. The compact size is, for example, a size that can be picked up with one hand.

[0026] The root ball 3 has a generally rectangular horizontal cross section, which is wider than a circular shape of the same length and width. Some root balls 3 have a wooden rod 5 near the bottom of the root ball 3 that is longer than one side of the bottom and slightly shorter than the diagonal of the bottom wall.

[0027] The seedlings 2 are grown with the stems 7 of the two seedlings 2 planted in the root ball 3 tilted at an angle between 5° and 25°, with the spacing between the upper ends of the two seedlings 2 greater than the spacing between their lower ends.

[0028] Therefore, when the seeds are grown into sprouts and then transplanted into a tapered box-shaped pot 9, the stems 7 of the two sprouts are inclined at an angle of 5° to 25°, and the two sprouts are planted with the spacing between their upper ends greater than the spacing between their lower ends.

[0029] If the stems 7 of the two seedlings 2 are inclined at an angle of less than 5°, the seedlings will become approximately upright and will not receive enough sunlight during growth from new shoots into seedlings 2 that can be planted, as the leaves 6 of the two seedlings 2 will interfere with each other, preventing them from receiving sufficient sunlight and resulting in a lack of photosynthesis and inhibiting seedling growth. If the stems 7 of the two seedlings 2 are inclined at an angle of more than 25°, the size of the seedlings 2 will expand larger than the root ball 3 in a planar view, making it difficult to keep the root balls 3 in contact with each other when packed into boxes for transportation, etc., reducing transportation efficiency. Furthermore, after planting in a field, etc., the seedlings will grow toward the sunlight, causing the stems to bend and resulting in a poor appearance.

[0030] The double seedling with root ball 1 comprises a root ball 3, which is a lump of culture soil 4 with a reduced root zone, and two seedlings 2 planted in the root ball 3. A tapered box-type pot 9 is not required, and the two seedlings 2 can be planted while remaining planted in one root ball 3. This significantly improves transportation efficiency and planting work efficiency, making a significant contribution to reducing the total cost of growing crops. [Explanation of symbols]

[0031] 1 Double seedling with root ball 2 seedlings 3 root ball 4 Cultivating soil 5 Wooden pole 6 leaves 7. Stem 9 Tapered box pot 10 Double seedlings growing in tapered box pots

Claims

1. A root ball, which is a lump of potting soil that reduces the root area, and two seedlings planted in the root ball; The double seedlings with root ball are characterized in that the stems of the two seedlings are inclined at an angle of 5° to 25°, and the two seedlings are planted in the root ball with the spacing between the upper ends of the two seedlings greater than the spacing between the lower ends.

2. The double seedling with root ball according to claim 1, characterized in that the root ball is of a size that can be picked up with one hand.

3. The double seedling with root ball according to claim 1 or 2, characterized in that the horizontal cross-sectional shape of the root ball is approximately rectangular.

4. A double seedling with a root ball as described in any one of claims 1 to 3, characterized in that a wooden stick body is provided near the bottom of the root ball, the stick body being longer than one side of the bottom and slightly shorter than the diagonal length of the bottom wall.

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