JPS6338171B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a weed weeding method for efficiently weeding short useful plants such as weeds growing in lawns, and a herbicide spray vehicle used in the method.

There are two types of herbicides: those that kill only the so-called surface parts of weeds, such as leaves and stems that are exposed above the ground, and those that kill the roots that are hidden underground. It has the disadvantage that it absorbs even more and dries it up. However, the herbicide recently sold by the American company Sound Company under the trade name Roundup kills only the leaves that are absorbed by the plant, including its roots.

Therefore, we try to use this herbicide to efficiently kill weeds that have grown in short useful plants such as lawns. It is necessary to make sure that it does not touch the lawn, etc. However, in order to do this efficiently on a large area of land, a considerable amount of ingenuity and a special spraying vehicle are required.

This invention has been developed based on the above-mentioned circumstances and uses a weed control method and a herbicide spraying vehicle to efficiently remove weeds growing in short useful plants such as lawns without damaging the useful plants. The purpose is to remove weeds.

The weeding method of the first invention is configured as follows. In other words, weeds that are about the same height as useful plants are fertilized to make them grow, and preparation work is done to create a sufficient height difference between the useful plants and useful plants. Weed weeding is characterized by the work of causing tall weeds to protrude from the gap between the covering boards, and the spraying work of spraying a sprayed herbicide onto the protruding weeds to kill the weeds. It's a method.

The second invention is a herbicide spraying vehicle used in the above-mentioned weeding method, and is constructed as follows. In other words, a plurality of elongated cover plates parallel to the direction of travel of the vehicle are arranged in parallel at intervals on the frame of the scattering vehicle, and the gap between each cover plate and the height relative to the frame are adjustable, and the height of the vehicle is adjustable. This is a herbicide spraying vehicle that features a herbicide spraying device mounted on the rear.

Examples of the scattering vehicle will be described below based on the drawings. As shown in Figures 1 and 2, a gate-shaped front section section section 2 is erected at the front end of a pair of front and rear long side sections 1, 1, and the upper section is bent backward at the rear end, and the upper ends are connected. A connecting member 4 serving as a handle 3 is constructed to constitute a frame of a scattering vehicle A, and a lower part thereof is a frame portion 5. A sled member A curved diagonally backward is provided on the lower surface of the tip of both long side members 1, 1, and a pair of wheels A, A are provided at the rear end to facilitate movement. A plurality of elongated cover plates 6 parallel to the traveling direction of the scattering wheel A are arranged in parallel with a gap 7 in the frame part 5, and a suspension rod 8 is erected at the tip of each cover plate 6. A mounting member 9 similarly bent into a gate shape is installed inside the front section frame 2, and a long groove 11 is formed in the horizontal rod 10, and a bolt 12 passing through the long groove 11 is used to attach a car to the upper end of the suspension rod 8. Installs freely in the width direction.
The vertical rod 13 of the mounting member 9 also has a long groove 14 in the vertical direction.
A bolt 15 passing through the opening is used to attach the mounting member 9 to the front section section member 2 so as to be adjustable in the height direction. At the rear of the frame part 2, a rear section section 16 having the same shape as the front section section 2 is erected in parallel with the connecting member 4, and a mounting member 17 similarly bent into a gate shape is installed inside it. On the other hand, the rear part of each cover plate 6 is bent diagonally upward, the tip thereof is placed on the horizontal rod 18 of the mounting member 17, and the bolt 20 is inserted through the long groove 19 made in the longitudinal direction of the horizontal rod 18. The cover plate 6 is attached so as to be freely adjustable in the spacing direction. Further, a long groove (not shown) is formed in the vertical direction in the vertical rod 171 of the mounting member 17.
The mounting member 17 is attached to the rear section section member 16 so as to be adjustable in the height direction by a bolt 22 passing through this. A mounting plate 23 is installed between the rear section profile 16 and the connecting member 4, and a chemical tank 24 is placed on it.
A plurality of nozzles 25 are provided on the front surface of the chemical liquid tank 24. This spraying device 26 is one that has been commonly used in the past and is used as is.

Next, the weeding method using the above-mentioned scattering vehicle A will be explained for the case of lawn A. First, as a preparatory work, if the height of weed b is almost the same as that of lawn a, fertilizer is applied. Then, weed B grows rapidly in a short period of time, reaching 20 to 30 cm, creating a height difference between it and lawn A. However, if there is already a sufficient difference in plant height between lawn a and weed b, this preparatory work is not necessarily necessary. If weeds B are over 50 cm tall, cut them to a height of about 10 cm and apply fertilizer to create a difference in plant height. This is because if weed b is cut short, its leaves will become smaller and weed b will not absorb the herbicide, making the herbicide less effective. When a sufficient difference in plant height occurs, the spraying vehicle A is pulled into the lawn a for the next spraying operation. As the spraying vehicle A moves forward, the short grass a is hidden under the cover plate 6 as shown in Figure 1, but the tall weeds b are hidden under the cover plate 6.
It protrudes upward from the gap 7 between them. When atomized Roundup (registered trademark) is sprayed as a herbicide from the spraying device 26, the herbicide is applied only to the protruding weeds B and not to the lawn A.
Therefore, after 2 to 3 weeks, only the weeds that were treated with the herbicide will die, leaving the lawn a intact.

Note that the herbicide is not necessarily limited to Roundup (registered trademark), and conventional herbicides may be used as long as sufficient care is taken to prevent the herbicide from falling on the lawn a. Further, the gap 7 between the cover plate 6 is adjusted as appropriate by loosening the bolt 12 that fixes the hanging rod 8, depending on the growth of the weeds b. The height of the cover plate 6 is adjusted by loosening the bolts 15 and 22 and moving the mounting members 9 and 17 up and down in accordance with the height of the lawn a.

As explained above, this invention covers useful plants with a plurality of cover boards arranged in parallel at appropriate intervals.
A spraying vehicle is installed so that tall weeds can protrude from the gaps between the covering boards. If the height of the weeds is almost the same as that of useful plants, apply fertilizer to fully stretch the weeds, and then pull the above-mentioned spraying vehicle into the grass where there is a sufficient height difference between the weeds and the useful plants. Spray herbicide. For this reason, the herbicide is not applied to the useful plants hidden under the cover boards, but only to the protruding weeds, so it can efficiently remove weeds in large areas without harming useful plants such as lawns. It is possible to eliminate weeds.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing the usage state of a herbicide spraying vehicle according to the present invention, and FIG. 2 is a perspective view showing the same spraying vehicle. A...Scatterer, B...Spraying device, 5...Frame,
6... Cover plate, 7... Gap.

Claims (1)

[Claims] 1. Preparation work to make a sufficient difference in plant height between the weeds and the useful plants by applying fertilizer to weeds whose plant height is almost the same as that of the useful plants, and to make the weeds grow, and a plurality of weeds arranged side by side at intervals. The process consists of covering useful plants with cover boards and causing tall weeds to protrude through the gaps between the cover boards, and spraying the protruding weeds with sprayed herbicide to kill them. Characteristic weed control methods. 2. A plurality of elongated cover plates parallel to the direction of travel of the vehicle are arranged in parallel at intervals on the frame of the scattering vehicle, and
A herbicide spraying vehicle, characterized in that the gap between each cover plate and the height relative to the frame are adjustable, and a herbicide spraying device is mounted at the rear of the vehicle.