JPH11155309A - Covering material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a covering material excellent in air permeability, water permeability and water holding capacity and capable of providing health seedlings uniformly germinating and having good root spreading when used for culture of a plant by making the covering material include vermiculite and coconut coir pith as main components. SOLUTION: This covering material for plant culture is obtained by having vermiculite and coconut coir pith as main components. In the above covering material, coconut coir pith is preferably contained in an amount of 5-60 wt.%. Further, the above covering material can be applied to all plants such as Welsh onion, leaf tobacco, beat, melon, pumpkin, broccoli, Aralia cordata and asparagus.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cover material for plant cultivation, which is used when cultivating a plant and is used as a cover on a cultivated soil. Sometimes heavily used.

[0002]

2. Description of the Related Art In recent years, when breeding or cultivating plants such as vegetables and flowers, cultivation soil has been used as it is, or rice husk, peat moss, vermiculite, sand and the like have been used as earth covering. In the case of rice, the cultivated soil is often used as the covering soil as it is, and in this case, granular artificial cultivated soil that is relatively heavier than the cultivation for seedling raising of other plants and the covering soil has been used.

[0003]

When cultivating a plant using these conventional soil covering materials, for example, when raising a seedling, the initial germination is poor, the growth of the seedling is not uniform, or the seedling is lacking. There was a drawback. In addition, especially in the case of rice, the weight of the artificial soil was heavy, so that handling of seedling transplantation was difficult. Uneven germination and uneven seedling growth not only affect subsequent growth, but especially when transplanting seedlings grown in a paper cylinder or cell into a field, transplantation may not be smooth due to uneven growth, or the plant may be out of stock. Therefore, it takes time for planting. In addition, nonuniform germination and growth of seedlings also seriously impede automation of agricultural work such as use of an automatic transplanter.

[0004] The disadvantages of these prior arts, especially seedling raising,
The causes of the defects at the time of transplantation are as follows. For example, when the cultivation soil is used as it is for the covering soil, the surface of the covering soil may be solidified and water and oxygen may not reach the root.
Rice husk has an appropriate point as a covering soil, but has some difficulty in initial germination, and peat moss has water repellency when dried, and cannot retain moisture. Since vermiculite is light, it flies in the wind, flows at the time of sprinkling, and the seeds are biased to one side to expose the seeds. On the other hand, the granular artificial soil for rice is heavier than other soils because the mountain soil and the wild soil are the main material, which causes difficulty, especially when women and elderly people perform the work. Particularly in recent agriculture where women and the elderly often perform agricultural work, it has become a very serious problem, and the emergence of an effective solution is expected.

[0005]

In view of the state of the art, the present inventors have made intensive studies to overcome the drawbacks of the conventional covering material, and as a result, by adding coco peat to vermiculite, It was newly found that it could cover the shortcomings of vermiculite as a soil cover, and for the first time succeeded in expressing characteristics suitable for all plants as seedling cover soil. It has also been newly found that this soil can be used not only for raising seedlings but also for transplanting and other wide-ranging plant cultivations. The present invention has been finally completed as a result of further studies based on these useful new findings. Hereinafter, the present invention will be described in detail.

[0006] The cover soil for plant cultivation according to the present invention has a basic technical idea of containing vermiculite and coco peat as main components.

[0007] Vermiculite is a type of clay mineral also called hillite, and is a hydrated mineral produced by subjecting peridotite, a phyllosilicate similar to mica group minerals, to hydrothermal metamorphism. . Vermiculite has a large cation exchange capacity, a high porosity, and is excellent in water absorption and air permeability.However, it requires a long time to absorb water and is extremely lightweight, so it can easily flow when sprinkling water and can be used as cover soil. It has the property of lacking uniformity and being easily blown off by the wind, and calcined vermiculite tends to have this tendency. In the present invention, vermiculite and its calcined product are appropriately used, and commercially available products can sufficiently withstand use.

[0008] Cocopeat refers to coconut coir pith, a natural product made by mechanically separating fibers and pith from coconut husks. And 1
It is an eco-friendly product that is 100% organic, completely biodegradable (hence no problem with disposal) and contains no seeds, weeds or chemicals. In addition, since coco peat is produced from a reproducible raw material (coconut shell), it is crucially different from peat moss, which is a fossil resource that cannot be reproduced.

[0009] Coco peat has a moderate weight, especially
It retains moderate weight as covering soil and has high water absorption even when dried. Cocopeat has a high water retention capacity, retains water 8 to 9 times its own weight, is excellent in disease resistance and fertilizing power, has many pores, has high air permeability, and has such properties as high permeability. .

The mixing ratio of vermiculite and coco peat is 10 to 60 parts, preferably 20 to 50 parts, more preferably 25 to 35 parts of coco peat per 100 parts of vermiculite. The soil covering material according to the present invention contains the mixture of vermiculite and coco peat as a main component, and contains the mixture in the range of 50 to 100% by weight. In the covering material according to the present invention, the content of coco peat is preferably in the range of 5 to 60% by weight, preferably 20 to 50% by weight, more preferably 25 to 35% by weight. In actual production of the covering material, the mixing ratio of vermiculite and coco peat and the usage ratio of this mixture may be set so as to be within this range.

[0011] As described above, the covering material according to the present invention comprises vermiculite and coco peat as the main components. In addition to the case where the covering material comprises only a mixture of these materials, other components are blended with the mixture. It is also intended to include the following cases. In the latter case, the other compounding ingredients include conventionally used soil covering materials (straw, mulch, rock wool,
Peat moss, sawdust, beet pulp, bagasse, etc.), fertilizers, pesticides and the like can be used as appropriate.

The soil covering material according to the present invention is not only useful as a soil covering material for seedlings, which is used as a soil after sowing seeds of various plants on the soil, but also at the time of transplanting or other cultivation of plants. Can be widely used as covering material.
For example, in turf curing, whitening of udo and white asparagus, cultivation of mushrooms, cultivation of young trees, and other cultivation of various plants, it can be used by covering the whole soil or covering the root part. it can.

The soil covering material according to the present invention includes leek, leaf tobacco,
Suitable for all plants such as beet, melon, pumpkin, tomato, flowering plant, rice, Chinese cabbage, cabbage, broccoli, udo, asparagus. In particular, it is most suitable for a plant that requires a uniform seedling such as a fine seed, a paper tube seedling, and a cell seedling. Also,
The soil covering material can also be used for cultivating rice seedlings for automatic rice transplanters, cultivating mushrooms and various trees. Hereinafter, examples of the present invention will be described.

[0014]

Example 1 A paper cylinder CP303 (30 mm in diameter, 30 mm in height, 264 stitches, manufactured by Nippon Sugar Beet Co., Ltd.) was developed with special props, and a perforated nursery box for rice (inner dimensions: 280 mm ×
Underlay paper (Eco Puppy: manufactured by Nippon Sugar Beet Sugar Co., Ltd.) in 580 mm × 30 mm)
P303 was stored and filled with green onion seedling cultivation soil (manufactured by Nippon Sugar Beet Co., Ltd.) at 80% by volume ratio. Three onion seeds (variety: Tokuta Seedling Co., Ltd.) were sowed per pot.

[0015] Another one which is the same as the seeded one is
This was prepared, and the soil covering material for the present invention (vermiculite 70%, coco peat 30% by weight) was covered with each of the remaining volume ratios of 20% as a control, using the cultivation medium for cultivation of only onion. These were bred for 50 days by the same conventional method as the onion raising method. One week after the start of raising seedlings, the germination rate of both cultures was 88%.
It was 97% using the soil covering material.

Seedlings grown using the soil covering material of the present invention for 50 days had higher germination, faster seedling growth, uniform uniformity of seedlings, and better seedlings than those using the cultivated leek as soil covering. Even when the seedlings were raised for 70 days, the topsoil did not solidify, the water permeability and water absorption were good forever, and the amount of irrigation was reduced to 2/3 that of the conventional product, thereby saving labor.

[0017]

Example 2 A paper cylinder VR264 (30 mm in diameter, 38 mm in height, 264 stitches, manufactured by Nippon Sugar Beet Sugar Co., Ltd.) was developed with a special prop, and a perforated nursery box for paddy rice (inner dimensions: 280 mm × 5)
Underlay paper (Clapappy: manufactured by Nippon Sugar Beet Sugar Co., Ltd.) in 80 mm x 30 mm)
264, and filled with Nitten Super Soils (manufactured by Nippon Sugar Beet Sugar Co., Ltd.), and a seeding hole is opened with a seeding hole plate to coat the seeds of Chinese cabbage grown in autumn harvesting (Ten Cup Chinese cabbage manufactured by Watanabe Agriculture Co., Ltd.) Was seeded in a seeding apparatus with one grain per pot. The covering material of the present invention (vermiculite 80% by weight, coco peat 20% by weight) is used as the covering material.
In addition, similarly, the soil-filled and sown filled medium was used as a soil cover, and the soil was placed in a house as a control, irrigated and bred (middle of August). The germination state was examined on the 5th day after sowing. The germination rate was 98% when the soil covering material of the present invention was used, and 94% when the filled soil was used as the soil covering material. In addition, the germination uniformity was better using the soil covering material of the present invention.

As a result of observing the condition of the seedling covering soil during the seedling raising period of 15 days, it was found that the surface using the covering material of the present invention was not solidified and was in a soft state, and had an appropriate water content. The soil covered with the filled soil was slightly solidified and dry.

[0019]

Embodiment 3 Cell tray (128 made by Kubota Corporation)
) Is placed on a seedling box for paddy rice, 3.3 L of seedling cultivation soil (N = 30 type, manufactured by Kubota Co., Ltd.) is loaded per tray, and a seeding hole plate (AU-12, manufactured by Kubota Co., Ltd.)
(Type 8). Use a simple seeder for this,
One seed of coated broccoli seed (standard L, manufactured by Watanabe Agriculture Co., Ltd.) was sown per cell. The soil was covered with the soil covering material of the present invention (vermiculite 60% by weight, coco peat 40% by weight) as a soil covering material (0.5 L per tray). As a control, vermiculite (vermiculite for covering seedlings formed with kubotasel) was covered with soil, and both were placed in a house and irrigated. In the case of using vermiculite, the soil was partially offset due to watering during seedling raising, and there were portions where the seeds were exposed. On the other hand, the product using the product of the present invention did not have such a problem. Also, those using the soil covering material of the present invention germinated uniformly, whereas the control germinated at irregular times.

The germination rate one week after the start of the seedling raising was 99% with the soil covering material of the present invention and 95% with the vermiculite.

[0021]

[Example 4] In a nursery box for paddy rice having a height of 30 mm inside,
An artificial soil for paddy rice (trade name: Kumiai synthetic soil) is put in a thickness of 25 mm, and 200 g of paddy rice seed Koshihikari is uniformly sown per seedling raising box. , Coco peat 5
0% by weight) and compared with a section in which soil was covered by a conventional method (the above-mentioned artificial paddy rice cultivation).

The seedling box sowed and covered with soil was placed in a seedling incubator, germinated at 32 ° C. for 2 days, and then transferred to a seedling house and raised for 20 days. When the initial germination uniformity was compared, the germination rate was higher and uniform growth was obtained when the soil covered by the method of the present invention was used than in the conventional method. When the weight per seedling box after sowing and soil covering was measured, the weight according to the method of the present invention was 390.
The weight was 0 g, and the weight by the conventional method was 4400 g, and it was lightweight and easy to handle.

[0023]

Example 5 Ten gardenia seedlings were purchased and planted one by one in ten pots (No. 6) using mountain soil. 5
The pot is prepared by mixing 5 g / L of a slow-acting granular fertilizer (N: 12%, P: 12%, K: 12%) in a mixture of 70% by weight of vermiculite and 30% by weight of coco peat as a topsoil. ) Was used for a thickness of 1 cm, and as a control, a mixture of the same amount of slow-release granular fertilizer and the same amount of mountain soil in 5 pots was used as a top soil with a thickness of 1 cm.

After two months had passed by the conventional growing method, the state of the pot topsoil was observed. As a result, the topsoil of the product of the present invention was in a state of swelling and maintaining air permeability and water permeability. On the other hand, the topsoil of the control pot was firmly tightened by irrigation, moss grew, and air permeability and water permeability were poor. Moreover, when the gardenia was taken out of the pot and examined for the amount of root and the length of the tree, the product of the present invention was excellent in all respects.

[0025]

According to the present invention, the vermiculite is provided with air permeability,
By mixing a special coco peat with good water permeability and water absorbability, we have succeeded in developing a new and excellent earth covering material that is unknown in the past.

The soil covering material according to the present invention can be used for raising seedlings of various plants,
It is most suitable for use as covering soil in transplantation and other various cultivation stages, and has the following remarkable effects, for example. (1) It has excellent air permeability, water permeability and water retention. (2) The germination is uniform and well aligned. (3) The topsoil does not solidify at any time during the seedling raising, and a healthy seedling with uniform rooting can be obtained. (4) It is excellent in water absorption, and the amount of irrigation can be saved.

Claims (3)

[Claims] 1. A covering material for plant cultivation, comprising vermiculite and coco peat as main components. 2. 5 to 60% by weight of coco peat, preferably 20 to 50% by weight, more preferably 25 to 35% by weight.
The earth covering material according to claim 1, which is contained. 3. The covering material according to claim 1, wherein the plant cultivation is plant raising.