JP2007029045A - Weed growth restraining method and material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a weed growth restraining method which can restrain growth of weed around trees for greening and trees in a fruit garden with less labor and easy and inexpensive construction work, and supply rainwater to the ground with water permeability, is free from the need of setting a special drainage channel, and can reduce the frequency of work of pulling out or removing weeds, and to provide a weed growth restraining material. <P>SOLUTION: This weed growth restraining method comprises digging the ground into about 70 mm depth leaving the root of azalea 10 of a greening zone 2 formed between boundary blocks 1 of sidewalk and roadway, dividing the dug space with division blocks 11, putting bamboo charcoal 2 and bamboo charcoal 3 into a mortar mixer followed by sufficiently stirring, and mixing alumina cement, silica fume and zirconia with sand at a weight ratio of 100:4:1.3:12 to make a solid material. Furthermore, the method comprises mixing 20 kg of the solid material with 4 kg of the mixed charcoal of the bamboo charcoal 2 and 3, adding 8kg water to the mixture followed by kneading to produce the granular weed growth restraining material 9, and charging the restraining material into space in the dug divisions followed by evenly laying with a wood trowel. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a method for suppressing the growth and propagation of weeds on a planting ground for greening along a road, a planting ground of a garden / park, or an orchard / planting / garden or a garden / open space on the outdoor side of a house. And a weed growth inhibitor used in the method.

Conventional weeds around trees such as parks, gardens, roadside green belts, and gardens have been removed by manually removing weeds, but this method also grows and grows quickly. One weeding operation is necessary, and the weeding operation over a large area is laborious, time consuming and expensive. Instead of drawing weeds, even if weed the grass with a mower and cut the weeds, the weeds grow quickly, requiring 2 to 3 times a year of weed cutting, which also takes time and effort Met. In addition, trees such as azaleas, etc., where branches and leaves grow prominently at low positions, are disturbed by branches and leaves, and the weed extraction work around the stems of trees and the cutting and removal of weeds are not successful.
In place of this, weeding by weed herbicide spraying is also performed, but in this method, the herbicide often harms humans and pets such as dogs and cats. It also caused groundwater contamination and adversely affected planting and planting flowers.

Furthermore, as a method for preventing weeds that do not use a herbicide, as disclosed in Japanese Patent Application Laid-Open No. 2001-90012, a paving material obtained by adding water to coal ash and cement and kneading is laid on the ground / road surface. Thus, a method for suppressing the growth of weeds is known.
However, this coal ash-containing pavement is mixed with coal ash and cement at the site, and the mixed pavement in the form of milk is poured into the ground / surface around the trees and the ground to be weeded. Since it is laid, the construction cost is high, and the permeability of rainwater is low. Therefore, a drainage channel must be constructed separately, and the water supply to the soil below the planted trees / plants tends to be insufficient.
JP 2001-90012 A

  The present invention eliminates such problems and can suppress the growth of weeds around tree planting and orchard trees with less labor by simple and inexpensive construction, and it is permeable and supplies rainwater to the ground. It is possible to provide a method for inhibiting weeds and a material for inhibiting weed growth that can reduce the number of weed extraction and weed cutting operations without the need for a special drainage channel.

The configuration of the present invention that solves this problem is as follows.
1) Excavation of the topsoil in the area of the ground where weeds are to be suppressed. If weeds are found in the area, remove the weeds from the roots. A method for inhibiting weed growth that spreads in the excavated space and solidifies the sprayed weed growth inhibitor while applying pressure from above, and suppresses the growth and growth of weeds by forming a weed growth inhibition layer near the surface. 2) The excavated ground is divided into almost the same area as close to the ground surface, and a certain amount of weed growth inhibiting material is added to each section, the weed growth inhibiting layer is made substantially the same thickness, and the surface is leveled flat. 1) The weed growth inhibition method as described in 1) above, wherein the growth suppression layer is finished 3) Bamboo charcoal or charcoal carbide and alumina cement are used as main raw materials, silica fume and zirconia are added thereto, and an appropriate amount of water is added thereto and kneaded. Miscellaneous It was added to Portland cement carbide growth suppressor 4) charcoal or charcoal, is an appropriate amount of water to weed growth inhibiting material by kneading in addition to this.

  According to the method for inhibiting weed growth of the present invention, the weed growth inhibiting material mainly composed of carbide and cement is a lump-like or granular solid, and the spraying operation on the ground around the planting or other ground is performed manually or by air pressure. It can be done easily and quickly by spraying. In addition, weed growth inhibitor has rainwater retention capacity, allows rainwater to pass through to the lower soil, requires less water supply to planted plants and flowers, and specially constructed drainage for rainwater Therefore, it is practical as a method for suppressing the growth of weeds. In particular, a weed growth inhibiting material in which cement is alumina cement and silica fume / zirconia is mixed with the cement has high strength and can contain a high amount of carbide, so that the growth inhibiting power can be enhanced.

The weed growth inhibitor used in the present invention is mainly made of bamboo charcoal or charcoal carbide and cement. Portland cement, alumina cement, blast furnace cement, or the like can be used as the cement, but a mixture of alumina cement, silica fume, and zirconia that can contain high carbides and has high strength is preferable. Furthermore, as a weight ratio of the preferable blend, silica fume is 1 to 20 parts by weight, zirconia is 0.5 to 20 parts by weight, carbide is 10 to 100 parts by weight, and blast furnace slag as a curing agent with respect to 100 parts by weight of alumina cement. 10-40 parts by weight of fine powder (amorphous SiO ₂ , Al ₂ O ₃ , CaO, MgO composite: trade name (ESMENT, manufactured by Nippon Steel Blast Furnace Cement)), or 10-40 sand. It is practical to mix in an amount of parts by weight and knead an appropriate amount of water in addition to this because many carbides can be contained and the strength is increased.
As charcoal used in the present invention, bamboo charcoal has higher strength per unit weight than charcoal, is rich in minerals and excellent as a planting base, and has a moisture content (water retention) of 25 to 35%. Of these, bamboo charcoal is preferable because it is preferable and bamboo can be reproduced. The carbide used for the method / weed growth inhibitor of the present invention is preferably mixed with those having different particle sizes.

Examples of the present invention will be described in detail below.
This embodiment is an example of a method for inhibiting weed growth on the ground around a greening azalea and a weed growth inhibiting material planted in a greening zone between blocks having a width of about 0.9 m at the boundary of a walking road provided along a road. It is.

FIG. 1 is an explanatory diagram of ground excavation in the embodiment.
Drawing 2 is an explanatory view explaining division by a division block of excavation space of an example.
FIG. 3 is a plan view showing a partitioned state of the excavation space of the embodiment.
FIG. 4 is an explanatory diagram showing application of the weed growth inhibitory material of the example.
FIG. 5 is an explanatory view showing the leveling operation of the weed growth inhibitory material of the example.

  In the figure, 1 is a pedestrian boundary block, 2 is a 0.9m wide greening zone of the same pedestrian boundary block, 3 is the ground of the greening zone, 4 is a roadway, 5 is a sidewalk, 6 is a greening zone 2 Excavation space formed by excavating the ground, 7 is a weed growth suppression layer formed by spraying weed growth suppression material 9 in the excavation space, 8 is a pure sand soil thrown below the excavation space space, 9 is 1 to 1 Bamboo charcoal with a size of 10 mm is mixed 11% by weight, alumina cement 15% by weight, silica fume 0.6% by weight, zirconia 0.2% by weight and sand 1.8% by weight. A weed growth inhibitor prepared by adding an appropriate amount of water and kneaded, 10 is azalea planted in the greening zone 2 at regular intervals, 11 is a partition block that divides the excavation space 6 every 1.1 m2, and 12 is a plasterer of leveling equipment. It is iron.

  In this embodiment, first, the root of the azalea 10 of the greening zone 2 formed between the two walking road boundary blocks 1 is left, and the ground 3 of the greening zone 2 is excavated to a depth of about 70 mm. Further, weeds at the base of the azalea 10 and the weeds in the ground and ground being excavated are extracted from the roots (see FIG. 1).

Next, the excavation space 6 is partitioned by a partition block 11 for each area of 1.1 square meters (m ² ) with a thickness of 5 mm (depth) (see FIGS. 2 and 3). Pure sand 8 is put into the lower half of the partitioned excavation space.

  Next, 30 liters of bamboo charcoal (No. 2) and 30 liters of bamboo charcoal (No. 3) are placed in a mortar mixer and stirred well. Next, 20 kg of a solidified material obtained by mixing alumina cement, silica fume, zirconia, and sand in a weight ratio of 100: 4: 1.3: 12 is added to the No. 2 and 3 bamboo charcoal mixed coal and mixed well. After mixing, 8 kg of water is added and kneaded so as to be completely mixed to produce the weed growth inhibiting material 9. This is an agglomerate form with alumina cement, sand, silica fume, zirconia, and particles attached to the surface of bamboo charcoal.

Next, weed growth inhibiting material 9 of this kneaded material is put into each partition block 11 in an amount of about 1.1 square meters, leveled with a wooden trowel, and the surface is finished flat while rolling so as to strike from above. Carefully finish the tree so that there are no gaps (see Figure 4).
The weed growth inhibitor 9 is sprayed in the form of grains and lump with a grain size of 2 to 12 mm. The surface of the bamboo charcoal lump is alumina cement / silica. Fume, zirconia, and sand are attached. The weed growth inhibiting material 9 can be sprayed into the excavation space 6 as if sand or gravel is sprayed. Moreover, the specific gravity is much lower than that of sand and gravel, so it can be easily sprayed by hand without feeling much weight. The weed growth suppression material 9 is thrown into the excavation space 6 with a shovel to a thickness of about 5 mm (see FIG. 2).
Next, the weed growth inhibiting layer 7 is formed by curing the weed growth inhibiting material 9 that has been charged and sprayed and whose surface has been leveled for about one day so as not to get wet.

  After curing, cricoat is sprayed on the surface of the weed growth suppression layer 7. Watering the greening zone that prevents weed growth as necessary. As a result, weeds did not grow much in the weed growth suppression layer 7 even after a long period of time.

A weed control test was conducted to confirm the weed control effect of the present invention.
In the ground where weeds often flourished, three ground square sections were secured, and concrete blocks were installed at the boundaries of the sections. The soil of these three sections is deeply excavated and removed, and weeds and weed roots in the sections are well removed. Then, thick sand soil is laid thickly as in the example. A single boxwood was planted in the true sand soil of each section, and then the same weed growth inhibitor 9 as in the example was put in a thickness of about 5 cm, and leveled while pressing with a trowel to form a weed growth inhibitory layer. In addition, weeds were cut and extracted over a width of about 50 cm in the outer circumference of the three compartments. Differentiated from the natural weed state outside the weed extraction area.
A weed growth inhibition layer 7 was formed in mid-July, and the state of weeds was observed until late August. As a result, weeds hardly grew on the surface of the weed growth suppression layer 7 in the three sections. In the weed extraction area outside the three sections, weeds grew to a place close to that of the natural weeds on the outside in about a month and a half.
Thus, it was recognized that the weed curing and its growth were greatly reduced by forming the weed growth inhibiting layer of the present invention.

  The example is an example of suppression of weed growth in a greening zone along a road, but it can also be used to prevent weeds in gardens and weeds in orchards and vegetable gardens.

It is explanatory drawing of the ground excavation of an Example. It is explanatory drawing explaining the division by the division block of the excavation space of an Example. It is a top view which shows the division state of the excavation space of an Example. It is explanatory drawing which shows dispersion | distribution of the weed growth suppression material of an Example. It is explanatory drawing which shows the leveling operation | work of the weed growth suppression material of an Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Pedestrian road boundary block 2 Greening zone 3 Ground 4 Roadway 5 Sidewalk 6 Excavation space 7 Weed growth suppression layer 8 Pure sand 9 Weed growth suppression material 10 Azalea 11 Division block 12 Plastering iron

Claims (4)

  Excavate the topsoil in the area of the ground where weeds are to be deterred. If there are weeds in the area, remove the weeds from the roots, and then add the appropriate amount of water to the bamboo charcoal or charcoal carbide and cement and knead the weed growth inhibitor. A method for inhibiting weed growth, which is sprayed in a dry space, solidified while pressing the spread weed growth inhibiting material from above, and forming a weed growth inhibiting layer near the ground surface to suppress weed growth and growth.   Divide the excavated ground into almost the same area as the ground surface, and introduce a certain amount of weed growth suppression material into each section, make the weed growth suppression layer approximately the same thickness, flatten the surface and suppress weed growth The method for inhibiting weed growth according to claim 1, wherein the layer is finished.   A weed growth inhibitor made from bamboo charcoal or charcoal carbide and alumina cement as main raw materials, silica fume and zirconia added to this, and an appropriate amount of water added thereto and kneaded.   A weed growth inhibitor prepared by adding Portland cement to bamboo charcoal or charcoal charcoal and kneading it with an appropriate amount of water.

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