JPH0477628B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a chemical solution spraying device that drops and sprays a chemical solution from above the trunk of a crop during the cultivation process of crops such as tobacco.

BACKGROUND ART Conventionally, in the cultivation of tobacco, in order to prevent the tobacco stem from extending upward, the upper part of the tobacco stem is cut off and cored. By coring, the number of leaves to be harvested is determined, sufficient nutrients are supplied to the leaves to be harvested, and the yield and quality are improved.

However, if side shoots develop from the base of the leaves even if the core is fixed, sufficient nutrients cannot be supplied to the leaves to be harvested. Therefore, the occurrence of axillary buds is prevented by spraying an axillary bud inhibitor. In the past, penetrating type axillary bud inhibitors were widely used, which were sprayed over the entire tobacco leaf surface after the tobacco was cored, but in recent years, contact type axillary bud inhibitors have been widely used. is becoming popular.

This contact-type axillary bud suppressant cannot suppress axillary buds unless it attaches to the base of the leaf where the axillary buds emerge, so it must flow down the trunk. Currently, this contact-type spraying work of axillary bud inhibitors is carried out by workers carrying a tank containing the chemical liquid on their backs, walking along the furrows and manually handling each tobacco plant.

Problems to be Solved by the Invention The work of spraying an axillary bud inhibitor while carrying a chemical solution tank on one's back is hard labor, and the work is inefficient and requires a long time. Furthermore, when spraying an axillary bud inhibitor, care must be taken to ensure that the axillary bud inhibitor does not adhere to the growing leaves, but when spraying is done while looking up from diagonally downwards, it is important to spray precisely at the center of the trunk. This is difficult and becomes even more difficult as worker fatigue increases.

Means for Solving the Problem A mobile agricultural machine having a chemical liquid tank containing a chemical liquid and traveling between the furrows is provided, and a chemical liquid spraying arm connected to the chemical liquid tank via a power pump and having a spot nozzle is moved. Installed on agricultural machinery.

Operation: The mobile agricultural machine is moved along the row where crops are planted, and the worker brings the spot nozzle of the chemical spraying arm above the trunk of the crop to perform spot-type chemical spraying.

Embodiment An embodiment of the present invention will be described based on the drawings.
First, a mobile agricultural machine 1 is provided that travels between furrows where crops such as tobacco are planted. Said mobile agricultural machine 1
An engine 3 is mounted on the front part of the chassis 2, and a transmission case 4 is fixed thereto.
Furthermore, a drive pump 5 is placed on the chassis 2 at the rear of the mission case 4, and a chemical solution dispersion column 6 is erected. Furthermore, a chemical solution tank 7 containing a medicinal axillary bud suppressant is placed at the rear of the chassis 2.

An output pulley 9 is fixed to the output shaft 8 of the engine 3, an input pulley 11 is fixed to the output shaft 10 provided at the upper part of the transmission case 4, and a V-belt is connected between these pulleys 9 and 11. 12
is wound. Further, an output pulley 14 is fixed to an output shaft 13 provided at the upper part of the transmission case 4, and an input shaft 15 of the drive pump 5 is fixed to the output shaft 13.
An input pulley 16 is fixed to the input pulley 16, and a V-belt 17 is wound between these pulleys 14 and 16. A tension roller 18 for intermittent application of tension to the V-belt 12 and a tension roller 19 for intermittent application of tension to the V-belt 17 are attached to the outer wall of the transmission case 4. Furthermore, a drive shaft 20 is provided at the lower end of the transmission case 4, and a drive wheel 21 is connected to this drive shaft 18.

Next, the chemical solution tank 7 and the drive pump 5
and are connected by a piping hose (not shown), and the driving pump 5 and the socket 22 provided at the upper part of the chemical solution dispersing column 6 are connected by a piping hose (not shown). Immediately before the socket 22 in the hose, a pot 23 is provided to interrupt the flow of the side bud suppressant, and one end of a chemical spraying arm 24 is connected to the socket 22 via a hose 25. A spot nozzle 26 is provided at the other end of the chemical solution dispersing arm 24,
A push-type pot 28 is provided adjacent to the grip portion 27 of the chemical solution dispersing arm 24.

Note that a driven wheel 29 is rotatably connected to the rear portion of the chassis 2. Further, an operating section 30 is provided at the rear end of the chassis 2, in which an accelerator lever, a change lever, a clutch lever, a stop switch, etc. are arranged.

In such a configuration, when performing the spraying work of the side bud inhibitor, the mobile agricultural machine 1 is positioned in the furrow where tobacco is growing as shown in Fig. 3, and the mobile agricultural machine 1 is moved at a slow speed in the direction of arrow a. Run it with Further, the driving pump 5 is operated by the driving force from the engine 3, and the axillary bud suppressant in the chemical solution tank 7 is pumped to the pot 23 through the hose. Note that the left and right drive wheels 21 of the mobile agricultural machine 1 are guided by the ridges on both sides, and the mobile agricultural machine 1 moves straight along the ridges without any steering operation.

On the other hand, the operator is holding the grip part 2 of the chemical solution dispersing arm 24.
7 and walks while standing behind the mobile agricultural machine 1. Then, by bringing the spot nozzle 26 close to the upper part of the tobacco stem and opening and closing the push-type pot 28, the axillary bud inhibitor is sprayed onto the upper end of the tobacco stem. The side bud inhibitor sprayed on the upper end of the tobacco stem flows down the trunk and attaches to the area at the base of the leaf where side buds occur. Then, as the mobile agricultural machine 1 advances, the side bud inhibitor is sequentially sprayed on the tobacco lined up.

Here, the operator only has to walk behind the mobile agricultural machine 1 and operate the chemical solution spraying arm 24, and the labor required for spraying the side bud inhibitor is greatly reduced. Therefore, the spot nozzle 26 can be positioned at the upper part of the tobacco trunk, and the operation of opening and closing the push-type pot 26 can be performed with plenty of time, and it is possible to easily prevent the side bud inhibitor from adhering to the tobacco leaves. In addition, since the operator adjusts the position of the spot nozzle 26 while observing the condition of the tobacco stem, the position of the top end of the tobacco stem may vary in height, and the tobacco stem may grow at an angle. Even if there is a problem, spraying of the axillary bud inhibitor can be done reliably at the upper end of the trunk. In addition, it is possible to reliably prevent the omission of spraying of the axillary bud inhibitor. Furthermore, since it is a spot spraying method, it is possible to prevent workers from getting sprayed with the axillary bud inhibitor.

Although this embodiment has been explained using a specialized machine for spraying chemical liquid as the mobile agricultural machine 1, it is also possible to use an elevated type machine equipped with a chemical liquid tank, a drive pump, a chemical liquid spraying arm, etc., and to steer the working machine across a tailor or crops. It may also be connected to a work vehicle or the like.

Furthermore, although this embodiment has been described using an example in which one chemical solution dispersing arm 24 is provided, the work efficiency can be improved by providing two chemical solution dispersing arms 24.

Effects of the Invention As described above, the present invention greatly reduces the labor required for the work by attaching heavy chemical tanks and power pumps to mobile agricultural machinery, and allowing the operator to spray the chemical by operating the chemical spraying arm. In addition, since the work efficiency is reduced, the chemical solution can be sprayed accurately to the central part of the trunk of the crop by operating the chemical solution spraying arm. In order to position the spot nozzle by operating the chemical spraying arm while checking the growth status of the crop, the worker can easily adjust the position of the trunk even if there are height variations or horizontal variations in the position of the upper end of the trunk. Chemical liquid can be sprayed accurately to the center,
Furthermore, the yield can be increased by spraying a contact-type axillary bud inhibitor that prevents the chemical solution from being applied to leaves other than the trunk and prevents the generation of tobacco axillary buds as a chemical solution. It has the following effects.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a side view, FIG. 2 is a plan view, and FIG. 3 is a front view showing a working state. 1... Mobile agricultural machine, 5... Power pump, 7... Chemical liquid tank, 24... Chemical liquid spraying arm, 26... Spot nozzle.

Claims (1)

[Claims] 1. A mobile agricultural machine having a chemical liquid tank for storing chemical liquid and traveling between furrows is provided, and a chemical liquid dispersing arm connected to the chemical liquid tank via a power pump and having a spot nozzle is provided on the mobile agricultural machine. Characteristic chemical spraying device.