JP2010268695A - Chemical spray method and chemical spray nozzle used for the method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a chemical spray method for efficiently spraying a herbicide for removing perennial grass plants and trees such as stock of Pueraria lobata, Indigofera pseudotinctoria, and Robinia pseudoacacia, on the plants and trees without cutting, and also to provide a chemical spray nozzle used for the method. <P>SOLUTION: The chemical spray method includes peeling epidermises to formation layers of an object plant and spraying a chemical liquid on the parts where insides of the epidermises are exposed. The object plants may include stock of Pueraria lobata, Indigofera pseudotinctoria, Robinia pseudoacacia, etc. The chemical spray nozzle has an exhaust nozzle at the tip of a long rod and a cutting blade is fixed near the exhaust nozzle. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a chemical spraying method for efficiently spraying a herbicide for removing perennial herbs and trees such as kuzu strains, komatsunagi and false acacia, and a chemical spray nozzle used in the method.

  When growing a plant for cultivation such as a crop in an agricultural field or a grass on a golf course, plants other than the plant for cultivation (so-called weeds) are usually removed as an obstacle to the growth of the plant to be grown. And the method of spraying a herbicide is normally employ | adopted as the removal method.

  However, herbicides have different sites for absorbing components depending on the type of drug, and there are treatment methods such as a foliage treatment type and a soil treatment type. Moreover, when performing a foliage treatment, there are many things which must apply | coat a chemical | medical solution to the cross section of a stalk or a leaf, However, It is inefficient to perform a cutting operation | work and an application | coating operation | work separately. In view of this, a device has been devised that can apply a chemical to the cross-section of the cut grass stem at the same time as the cutting operation. For example, Japanese Utility Model Application Laid-Open No. 60-133732 discloses a reciprocating device having a liquid material supply mechanism for supplying a liquid material such as a medicine from between a receiving blade and a cutting blade and supplying the liquid material to a stump portion of a grass stalk. A shape trimming device is disclosed.

Japanese Utility Model Publication No. 60-133732

  Many perennial herbs such as kuzu strains and trees such as komatsunagi and fake acacia have no medicinal effects unless the trunk or root system is cut (cut) and a chemical solution is applied to the cut surface. And in that case, it is inefficient to perform a chemical | medical solution application | coating operation | work in addition to a felling operation | work similarly to the case where the said grass is cut. However, the conventional cutting device provided with the liquid supply mechanism cannot cut perennial herbs and trees with thick stems and roots, and cannot apply the chemical solution simultaneously with the cutting operation. In addition, the cutting of perennial herbs and trees is a heavy labor, and there is a need to reduce the work.

  Accordingly, the present invention provides a method for spraying a herbicide for removing perennial herbs and trees such as kuzu strains, komatsunagi, false acacia, and the like, which can be efficiently sprayed without cutting, and a drug spray used in the method. An object is to provide a nozzle.

  In the chemical spraying method according to the present invention, the epidermis up to the formation layer of the target plant is peeled off, and the chemical solution is sprayed onto the exposed portion of the inside of the epidermis.

  The target plant may be any of a litter line, a komatsunagi, and a false acacia.

  In the chemical spray nozzle according to the present invention, a chemical solution jet nozzle is provided at the tip of the long rod, and a cutting blade is fixed in the vicinity of the jet nozzle.

  According to the method for spraying medicine according to the present invention, even if it is a perennial herb or a tree that does not show medicinal effects unless a chemical solution is applied to the cut surface, the epidermis up to the formation layer is peeled in an annular shape, If the chemical solution is sprayed on the exposed part of the inside, the same effect as when logging can be obtained without cutting the trunk.

  The target plant of the method for spraying the agent according to the present invention is not particularly limited as long as it has a thick trunk or root system and can obtain a medicinal effect by applying a chemical to the cut surface. Is preferred.

  In the agent spraying nozzle according to the present invention, the chemical solution spout and the cutting blade are integrated with the long rod, so that peeling of the target plant and spraying of the chemical solution can be efficiently performed with the same instrument. In addition, since the spout and the cutting edge are provided on the long rod, it is possible to perform a series of operations in a posture in which the operator is standing up, and the efficiency of the operation can be greatly improved.

The process of the chemical | medical agent spraying method which concerns on this invention is shown notionally, (a) is a figure which shows the state of the chemical | medical agent spraying nozzle and tree before work is performed, (b) shows the state in which the peeling work is performed. (C) is a figure which shows the state by which the chemical | medical agent is sprayed.

With reference to the drawings, an embodiment in which the medicine spraying method according to the present invention is performed using the medicine spraying nozzle according to the present invention will be described.
The drug spraying nozzle used in the spraying method in this embodiment is provided with a chemical solution ejection port 2 at the end of a long rod 1 and a cutting blade 3 fixed in the vicinity of the ejection port 2. The long rod 1 only needs to have a length that allows a skin peeling operation and a medicine spraying operation, which will be described later, to be performed in a posture in which the worker stands up without bending down. However, it is necessary that the handleability is not impaired, and it is preferably 1 to 1.5 m. The jet nozzle 2 can use a known herbicide spray nozzle. The cutting blade 3 may have any strength and shape that can peel the skin of the tree, but has a thickness of about 0.5 to 1 cm, and the blade portion is concavely curved. For example, crescent moon A sickle blade shape that is largely curved into a shape is preferred.

  In this spraying method, first, the cutting blade 3 is used to peel the epidermis up to the formation layer of the tree 4 that is the target plant to be excluded. In the peeling operation, the cutting blade 3 may be substantially horizontal and the recessed blade portion may be inserted into the surface of the tree 4 and pulled up or pushed down along the vertical direction while maintaining the substantially horizontal state. Then, the part which the blade part of the cutting blade 3 was in contact with is turned up or down, and the formation layer of the tree is exposed. And by repeating this operation | work about the perimeter direction of the tree 4, the cyclic | annular peeling part 5 can be formed in the tree 4. FIG. At this time, it is preferable that the width | variety of the peeling part 5 shall be 5-10 cm. There is no restriction | limiting in the position which forms the peeling part 5, What is necessary is just to set it as the position which can work easily. For example, the height may be 20 to 50 cm from the ground surface. 1B and 1C, the peeling portion 5 is formed by inserting and pulling up the cutting edge 3 to a position that becomes the lower end in the width direction of the peeling portion 5, but this is a position that becomes the upper end in the width direction. It may be formed by inserting and pushing down. Furthermore, the cutting edge 3 may be inserted into a position that is the center in the width direction of the peeling portion 5 and may be formed by performing both a lifting operation and a pressing operation at that portion. In this case, the width of the peeling portion 5 can be reduced with a small force. There is an advantage that can be widened.

  After the annular peeled portion 5 is formed, the chemical is then sprayed on the part of the tree 4 where the inside of the epidermis is exposed, that is, the surface of the peeled portion 5. Since the medicine sprayed on the surface of the peeling portion 5 penetrates the tree 4, the tree 4 can be withered by its medicinal effect. It is preferable that the chemical | medical agent 6 is sprayed over the circumferential direction whole region of the tree 4, and in that case, there exists an effect that a chemical | medical solution osmose | permeates all the vascular bundles of a trunk, and a medicinal effect is acquired reliably.

  An annular peeled portion was formed on the komatsunagi, and a drug was sprayed on the peeled portion. The age of the target Komatsunagi was about 5 years, and the thickness (outside diameter) of its trunk was about 4 cm. The width of the formed peeled portion was about 7 cm, and the formed position was 40 cm from the ground surface. Further, a diluted solution of glyphosate potassium salt and glyphosate ammonium salt was used as the drug. Furthermore, a shoulder-type electric sprayer was used for spraying the medicine. As a result, it was confirmed that Komatsu nagi died to the root system 6 months after the spraying of the drug.

1 Long rod 2 Spout 3 Cutting edge 4 Tree 5 Peeling part

Claims (3)

  A method for spraying a drug, comprising peeling off the epidermis up to the formation layer of the target plant and spraying the drug to the exposed portion of the inside of the epidermis.   The method for spraying medicine according to claim 1, wherein the target plant is any one of a litter line, a komatsunagi, and a false acacia. A drug spraying nozzle characterized in that a chemical solution jet nozzle is provided at the tip of a long rod, and a cutting blade is fixed in the vicinity of the jet nozzle.

Images