JPH0499419A - Method for activating plant - Google Patents

Abstract

PURPOSE:To carry out activation of plants weakened with disease injury, rejuvenation of senile trees, multiplication of fruits and promotion of root taking of plants in infertile land by unintegrally coating the part near the root of a plant with a water-impermeable foil-like material. CONSTITUTION:For example, a tacky agent layer 3 is provided on one end side of one surface (2a) of a black beltlike sheet 2 made of soft polyethylene and a tacky tape 4 is bonded to the other end side of the opposite surface (2b). The resultant sheet 2 is then wound around a tree trunk (T) to bond the tacky tape 4 to the other surface (2b). Thereby, rain and dew extend the surface of the tree trunk part and the back surface of the sheet to always keep the surface of the tree trunk part in a wet state.

Description

[Detailed description of the invention] [Purpose of the invention]

[Industrial Application Field] The present invention provides a method for revitalizing plants that is effective for the purposes of revitalizing plants weakened by pests, rejuvenating old trees, increasing fruit yield, propagating mycorrhizae, and promoting the establishment of plants in poor soil. Regarding. [Prior Art] (1) Background Plants, as oxygen suppliers, are inseparable from the survival of animals, which are oxygen consumers. Particularly in recent years, the need to protect forests has been highlighted from the perspective of preventing global warming caused by increased carbon dioxide concentrations. (2) Problems with conventional technology However, there are still many unknowns about the physiological mechanisms of plants.
For example, to rejuvenate a weakened old tree, countermeasures such as drilling holes in the base to improve ventilation to the roots, exterminating pests with insecticides, and injecting plant hormones by drilling holes in the trunk are recommended. It's just the therapy being done. However, applying these treatments to many trees is extremely difficult in terms of labor and cost. In particular, pesticides lack specificity, so they not only kill beneficial insects and natural enemies in addition to harmful pests, but they also harm birds, which are the main predators of insects, resulting in the destruction of the ecosystem. There is a risk of [Problem to be solved by the invention] Therefore, the problem to be solved by the present invention is to solve the problem by a simple method.
To provide a plant revitalization method that is effective for the purposes of revitalizing plants weakened by pests, rejuvenating old trees, increasing fruit yield, propagating mycorrhizae, and promoting the establishment of plants in poor soil.

[Structure of the invention]

[Means for Solving the Problems] (1) Concept Based on the results of many years of field research, the present inventors have discovered that keeping the roots of trees, etc. warm is effective for activating and growing plants. It is difficult to theoretically clarify the mechanism by which this heat retention is effective for revitalizing plants, but the temperature at the roots of plants during the growing season (March to September) is similar to that at the trunk. Since the temperature is lower, the temperature at the root zone, which has increased due to insulation, is probably gradually transmitted to the root zone and increases the temperature at that zone, which activates the water absorption action of the root zone and increases the plate pressure. The water potential drop between the phases becomes larger and the water rises through the vascular system, in other words, water transpiration becomes more active. As a result, the dynamic equilibrium of water moves in the positive direction, and as a result, carbon This is presumed to be due to an increase in anabolism, the production and transport rate of energy substances such as sugar. In fact, it has been experimentally confirmed that heating the root zone causes an increase in root temperature, and it has been found that heating the root zone causes an increase in root temperature.
The temperature rise in the fine roots 10cm underground is approximately 1°C.
However, the temperature of the trunk 10 cm above the insulation area remains unchanged (India rubber tree), so it is clear that heat transfer occurs towards the roots. Incidentally, since the temperature increase at the root zone caused by passive heat retention using vinyl covers, etc. is 1 to 2°C, the temperature increase at the fine root zone near the topsoil is less than 0.5°C, but it is very small. However, it is estimated that a large cumulative effect will occur while heating is continued for a long period of time. However, as a result of subsequent research, it was discovered that when a water layer exists between the trunk and the heat-retaining layer provided to keep the roots warm, the heat-retaining effect becomes even more pronounced. (2 Overview Based on the above findings, the gist of the present invention is a method for revitalizing plants, which is characterized by non-integrally covering the root zone of plants with a water vapor-impermeable or water-retaining foil-like material. Hereinafter, the various elements constituting the invention will be explained in terms of section. Along with being flexible,
It is necessary to have properties that make it difficult for water vapor to pass through or to retain water. Suitable water vapor-impermeable foils include films or sheets of hydrophobic synthetic resins such as polyethylene, polypropylene, polyvinyl chloride, and polyethylene terephthalate, particularly stretchable materials such as soft polyethylene. Although a flexible polyvinyl chloride sheet is a suitable material for the application, it is not an i&suitable material because the plasticizer washes away and hardens over time. Further, examples of the moisture-retentive foil-like material include porous foil-like materials such as woven fabric, nonwoven fabric, or silk fabric made of natural or synthetic fibers, sponge rubber, or urethane foam sheet. However, since multi-layer materials should be installed around the roots of trees etc. for a long period of time, materials with poor rot resistance and weather resistance, such as natural fibers, are not preferable. Since the number of items is huge, it is necessary to transport items as cheaply as possible. Therefore, among the currently available materials, the most suitable material is a sheet-like material made from soft polyethylene. The foil-like material is desirably colored black or dark in order to enhance heat absorption. In particular, the best results can be expected from the use of far-infrared emitting substance powder as the coloring pigment or paint because the far-infrared radiation effect is transmitted through the vascular system to the roots. If desired, a so-called super absorbent resin may also be used in combination for the purpose of increasing water retention. The superabsorbent resin particles are applied to one side of the foil-like body facing the trunk using a binder such as urethane paint. This super-absorbent resin becomes wet with raindrops or dewdrops and swells to several hundred times its original volume, keeping the area between the foil-like material and the trunk surface in a wetter state than when a mere foil-like material is applied. In this case, if there is a concern about mold growth or insect damage, fungicides and insecticides can be used in combination. The width of the foil-like material (the length along the longitudinal direction of the applicable trunk) should normally be about 1 to 3 times the diameter of the applicable trunk. In addition, the length will necessarily take into account the circumference of the target tree, etc. to some extent. [41 Application method of foil-like material For water-vapor-impermeable or moisture-retaining foil-like materials, apply an adhesive to the edge of one side or the vicinity thereof in order to make it easier to wrap it around the trunk of the target tree, etc. It is best to have it tied up with string (there is no point in applying adhesive over the entire length), but if you don't mind a little extra work, you are free to tie it up with string. (Hereinafter in the margin) [Effect] The reason why plants are activated by the method of the present invention is assumed to be as follows. That is, when the root edge of a plant is covered with a water vapor-impermeable or water-retentive foil-like material, the gap between the inner surface of the foil-like material and the outer periphery of the trunk becomes wet with rainwater, irrigation water, dew, etc. This moisture penetrates into the vascular system through the cuticular layer of the bark, increasing the water potential of the vascular system. This increase in potential makes the potential difference between the upper part of the trunk and the trunk larger, so it is thought that transpiration of water becomes more active and photosynthesis etc. become more active. Incidentally, the amount of increase in water potential due to wetting of the trunk is currently being measured (measurement will require a considerable period of time), but at least the amount of increase in water potential due to wetting of the trunk is between two wet parts of the trunk separated from each other, and between the wet part and the soil. The fact that the electrical resistance of IOMΩ in the non-wetting state decreases from IOMΩ in the non-wetting state to about 25 OKΩ is a suggestive phenomenon that suggests a relationship between wetting and water potential. At the same time, the effect of increasing the temperature at the root zone due to the above-mentioned heat retention effect and the effect of increasing plate pressure due to this are also added, and as a result of these synergistic effects, the plant is activated and strengthened, and as a result, it is weakened by pests and diseases. It is estimated that it will produce remarkable effects such as activation of 1M products and rejuvenation of old and deteriorating trees. According to the inventor's preliminary findings, the implementation of the present invention promotes the development of mycorrhizae. It is more difficult to explain why this is the case, but as the plants increase in vigor, the secretion of auxin analogues and cytokinins from the root tips becomes active, and at the same time, organic acids produced from the roots are absorbed by bacteria. One explanation would be to assume that mycorrhizal formation promotes the division and germination of root-forming bacteria.
As a kind of symbiotic phenomenon between plants and mycorrhizal fungi, the exchange of nutrients between the two is said to be effective for plant establishment and proliferation. This gives us hope for the future as a way to increase planting and matsutake yields. Furthermore, the results of another preliminary test show that the implementation of the present invention results in an increase in the sugar content of chestnut fruits and an enlargement of peach fruits. These results can also be said to be promising for the development of fruit gardening. [Examples] Hereinafter, embodiments of the invention will be explained using examples, but the examples are merely for explanation and do not mean any restriction or limitation on the idea of the invention. Example 1 (Product Example 1) FIG. 1 is a cutaway sectional view showing an example of a foil material applied to the practice of the present invention, and FIG. 2 is a perspective view showing its usage. The entire IA is one side 2 of the polyethylene black strip sheet 2.
An adhesive layer 3 is provided on one end side of a, and an adhesive tape 4 is adhered to the other end side of the opposite surface 2b. The adhesive surfaces of the adhesive layer 3 and the adhesive tape 4 are covered with release paper 5, respectively.
．． 5'. During distribution, it is desirable to wind the tape into a roll with the adhesive tape 4 side facing inward. In use, as shown in Fig. 2, first peel off the Noh pattern paper 5 and adhere the adhesive layer 3 to the tree trunk T at the root edge, then unwrap the roll and wrap it around the tree trunk T. is peeled off, and the adhesive tape 4 is adhered to the other surface 2b of the sheet 2. Rain and dew accumulates between the surface of the tree trunk and the back surface of the sheet 2, constantly moistening the surface of the tree trunk in contact. Example 2 (Product Example 2) FIG. 3 is a cutaway sectional view showing another example of a foil-like product applied to the implementation of the present invention. The structure of the foil material IB of this example is almost the same as that of the previous example, except that a far-infrared emitter fine powder layer 6 is attached to one surface 2a of the sheet 2. Since the foil-like product of this example includes the far-infrared ray emitter fine powder layer 6, it is more effective than the previous example. Example 3 (Product Example 3) FIG. 4 is a cutaway cross-sectional view showing another example of a foil-like product applied to the implementation of the present invention. The structure of the foil-like material 1c of this example is almost the same as that of Example 1, but a super absorbent resin layer 7 is attached to one surface 2a of the sheet 2. This super-absorbent resin layer 7 absorbs rain and dew, swells, and wets the surface of the contact tree trunk more than in Example 1. Example 4 (Application Example 1) A black polyvinyl chloride sheet with a width of 50 cm was wrapped around the root edge of a red pine tree that was about 50 years old (30 cm in diameter). Incidentally, this red pine has not produced matsutake over the past 10 years, so no whites were discovered. When we observed the area around the roots of the test red pine one year after application, we found a ring of white growth, and the tree had good vigor.
This suggests that the conditions for matsutake growth are in place. Example 5 (Application Example 2) When we observed the growth status and condition of fine roots after 1 year for a test tree whose root edge was covered with black vinyl tape and a control water without coating, the following results were obtained. was gotten. ■ The growth condition of the test trees was overwhelmingly better than that of the control water. ■ The test trees grew vertically, while the control water curved toward the rays. ■ Vigorous mycorrhizal formation was observed in the lateral roots of the test trees, which were tenge-like (inflorescence-like). In contrast, lateral root formation in the control water was inactive, with almost no mycorrhizae formed.

【Effect of the invention】

As explained above, the present invention provides a simple method for revitalizing plants that is effective for revitalizing plants weakened by pests, rejuvenating old trees, increasing fruit yield, and propagating mycorrhizae. By doing so, it can contribute to the development of agriculture and forestry.

[Brief explanation of drawings]

FIG. 1 is a cutaway sectional view showing an example of a foil-like material applied to the implementation of the present invention, FIG. 2 is a perspective view showing its usage, and FIG. FIG. 4 is a cutaway sectional view showing another example of the foil-like material that is applied to the implementation of the present invention. The meanings of the symbols in the figure are as follows. 1A-1c Two foil-like products for implementing the present invention; 2:1A-1o
Sheet 28.2 one side, 2b:2 other side; 3.2 adhesive layer 4. Adhesive tape 5.5', release paper 6, far infrared emitter fine powder layer of IB; super water absorbent resin layer of 7:10. T-Tree trunk.

Claims (1)

[Scope of Claims] 1. A method for revitalizing plants, which comprises non-integrally covering the root zone of plants with a water vapor-impermeable or water-retaining foil-like material. 2. The method according to claim 1, wherein the foil-like material contains a far-infrared emitting material on one surface thereof. 3. The method according to claim 1 or 2, wherein the foil-like material has a water-absorbing resin layer on one surface. 4. The method according to claim 1, wherein a pressure-sensitive adhesive layer is provided on one side of the end of the foil-like material. 5 Claim 1 wherein the foil-like material contains a bactericide and/or an insecticide
The method described in any of 4.