JP2003040714A - Herbicide - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a herbicide excellent in control effect and persistence to weeds, gentle to the environment and to provide a herbicide excellent in control effect to the weeds without giving a harmful effect to growth of trees and to provide a herbicide having an extermination effect to a mole together with the herbicidal effect. SOLUTION: This herbicide is obtained by mixing at least materials including alumina, calcium, magnesium, iron and silicone to a material including nitrogen. The herbicide includes 1 to 30 pts.wt. of the above materials to 100 pts.wt. of the nitrogen and the control of the weeds is carried out by spraying the herbicide to the weeds shortly after their germination.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to herbicides, especially nitrogen-containing herbicides.

[0002]

Conventionally, weeds have been controlled by various herbicides, and research for improving herbicides has been continued. As a result of many years of experimental observation, the present invention has found that weeds can be efficiently controlled by mixing a substance containing a certain substance with nitrogen. That is, the present invention relates to an improvement of a herbicide, which provides a weed control agent having excellent weed control effects and sustainability, and being environmentally friendly. Further, the present invention provides a herbicide which has an effect of controlling weeds but does not adversely affect the growth of trees. Moreover, a herbicide that also has the effect of exterminating moles is provided.

[0003]

The structure adopted by the present invention as a means for solving this problem is as follows. That is, the herbicide according to claim 1 contains at least alumina, calcium, magnesium, iron,
The contents of silicon were mixed. Next, the herbicide according to claim 2 was obtained by mixing 1 part by weight to 30 parts by weight of the content with 100 parts by weight of nitrogen. Next, the herbicide according to a third aspect of the present invention made it possible to extinguish mole by mixing nitrogen with at least alumina, calcium, magnesium, iron and silicon contents. Finally, the herbicide according to claim 3 is applied to the weeds immediately after germination to control the weeds.

[0004]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described.
That is, the herbicide according to the present invention is a mixture of nitrogen and a substance containing a certain substance. Nitrogen may be any element as long as it contains a nitrogen element, and therefore, for example, urea, lime nitrogen, ammonium sulfate, etc., and a chemical fertilizer containing a nitrogen element may be used. The inclusion mixed with nitrogen contains at least alumina, calcium, magnesium, iron, and silicon (hereinafter, the inclusion of at least alumina, calcium, magnesium, iron, and silicon is referred to as "inclusion"). In this case, another substance may be added to the inclusion.

[0005] The content of the mixture with respect to nitrogen is 10
It is desirable that the content is 1 to 30 parts by weight with respect to 0 parts by weight. Content of 1 for 100 parts by weight of nitrogen
If the amount is less than the weight part, the control effect of weeds, especially the sustainability of the control effect, is not improved. Further, when the content exceeds 30 parts by weight with respect to 100 parts by weight of nitrogen, the control effect of weeds tends to decrease. In addition to nitrogen, herbicides consisting of alumina, calcium, magnesium, iron, and silicon are excellent in controlling weeds, but not only have no adverse effect on the growth of other trees, but they also have the effect of improving soil. It was

[0006] Nitrogen, for example, urea and the like containing nitrogen and the inclusions may be in the form of granules or powder. For example,
The urea and the content may be in the form of granules or powder, or one may be granulate and the other may be powder, but the present invention is not limited thereto. In either case, they are mixed so that they are almost uniform.

In the present invention, a control method such as spraying a large amount of herbicide to the herbicide after growth to kill weeds is not adopted. That is, it is effective to spray the weeds immediately before germination or immediately after germination, preferably immediately after germination and when the weeds grow to about 2 to 3 cm.
Usually, the weeds are sprayed at the germination time of February or March. It is effective to spray the herbicide again in autumn, for example, around October. Thus, weeds can be effectively controlled by spraying at least once a year, preferably twice a year. In addition, the spraying performed in autumn (for example, around October) is also effective for the seeds of weeds that have fallen to the ground, and effectively inhibits the germination of the next year. For weeds after growth, weeds and weeds are dug back together with soil, the weeds are once removed, and then a herbicide is applied. This inhibits the subsequent growth of dug up weeds and the development of new weeds.

The herbicide according to the present invention is effective for controlling weeds generated in fields, gardens, vacant lots and hedges, and does not adversely affect the growth of trees.
It is also effective for undergrowth of trees planted on the side of the road and trees in parks. In addition to nitrogen, it contains alumina, calcium, magnesium, iron, and silicon, so it has the effect of improving soil and is environmentally safe. 1 to 4 show examples of specific places to which the herbicide is applied. FIG. 1 shows the application place as a field, FIG. 2 shows the place where the undergrowth of trees grows, and FIG. 3 shows the application place. Fig. 4 is a side part of a highway with a planting, Fig. 4 is a side part of a general road with a planting site, 1 is a weed, 2 is a tree, but once the weed grows and grows, The removal of the weeds 1 and then spraying the herbicide is the same as described above.

[0009] To further describe specific examples of the herbicide according to the present invention, according to experimental observations conducted from 1993 to 2000, every February or March, weeds have a ground surface of a few centimeters. After the herbicide was sprayed on the weeds that had grown, the growth of the weeds was observed.
Most of the germinated weeds died within 3 weeks, and only few weeds grew. Furthermore, the herbicide was sprayed in the same manner in October of autumn. Thus, effective control of weeds is carried out once a year, preferably twice a year, for example, once in February or March and once in autumn (October). I was able to. Especially when sprayed twice a year, the control effect is remarkable, and the control effect is long-lasting. Further, if the application was once or twice a year continuously every year, the control effect of weeds did not decrease significantly even if the amount of the herbicide applied was smaller than that of the previous year. 2 every year
If the spraying is repeated for at least 3 years, 4
After the first year, it was only necessary to spray once a year in February or March, and the control effect of weeds was not particularly reduced. It was also confirmed that if the herbicide was sprayed just before the rainfall, the herbicide was easily dissolved in rainwater and had a rapid effect. Usually, it is recommended that there be rainfall within 1 week after spraying. Therefore, it is recommended to select the date and time when rainfall is likely to occur and spray the herbicide immediately before the rainfall. When the herbicide is mainly a granular substance, the granular substance is gradually dissolved and acted by rainwater, so that the controlling effect can be effectively maintained. For this reason, it is usually preferable that the size of the granular material is about 1 mm to 5 mm in diameter, but the size can be changed according to the situation. Water may be sprayed after spraying the herbicide instead of rainwater. In any case, there was no harmful effect that hindered the growth of Tree 2.

Next, it was found that the herbicide according to the present invention is also effective in repelling moles. That is, for example, a mole makes a passage for movement in the ground of a golf course,
The grass surface of a golf course may be roughened, such as the grass surface being partially raised. An effective means for this is to exterminate or repel moles, but conventionally there has been no simple and effective means for exterminating or repelling moles. According to the experimental results of the applicant, when the moles make a passage for movement in the ground close to the ground, for example, the soil of the raised ground is partially removed, and the herbicide according to the present invention is placed in the passage for movement. Place and partially block the passage for movement.

According to this, the mole was able to effectively repel the mole without disappearing from the passage for movement or in the vicinity thereof and then forming a new passage for movement in the periphery. It is considered that this is because the herbicide containing nitrogen as a main component changed the inside of the transfer passage into an unpleasant environment for the mole by closing the transfer passage. As described above, the herbicide according to the present invention can not only control weeds but also easily and effectively repel the moles that damage the grass surface and the like.

[Brief description of drawings]

FIG. 1 is a diagram showing a specific application site of a herbicide according to the present invention, and an explanatory view showing that the application site is a field.

FIG. 2 is an explanatory view showing that the application site is also a place where undergrowth of trees flourishes.

FIG. 3 is an explanatory view showing that the application site is a side part of a highway with a plant, similarly.

FIG. 4 is an explanatory view showing that the application site is a side part of a general road with planting.

[Explanation of symbols]

1 weed 2 trees

Claims (4)

[Claims] 1. A herbicide containing a mixture of nitrogen, at least alumina, calcium, magnesium, iron and silicon. 2. The herbicide according to claim 1, wherein 1 part by weight to 30 parts by weight of the content is mixed with 100 parts by weight of nitrogen. 3. A herbicide capable of repelling moles by mixing nitrogen with a substance containing at least alumina, calcium, magnesium, iron and silicon. 4. The herbicide according to claim 1, which is applied to weeds immediately after germination to control the weeds.