KR100915153B1 - Herbicidal compositions for grass - Google Patents

Abstract

A herbicidal composition for grass is provided to minimize the effect of damaging environment and promote the growth of grass with effective herbicidal activity. A herbicidal composition for grass comprises 50 weight% of MCPP(methylchlorophenoxypropionic acid) 100-150 ml, 40 weight% of 2,4-D[2, 4-Dichlorophenoxy acetic acid] 70~100ml, 38 weight% of dithiopyr 70-100ml, 20 weight% of imazaquin 150-200 ml, pyroligneous acid 0.2-0.4 L in tourmaline treating water. The MCPP is a herbicide of phenoxy hormone and used as a herbicide for broadleaf weed. The 2,4-D is also a herbicide of phenoxy hormone and causes abnormality in cell division.

Description

Herbicide composition for grass {HERBICIDAL COMPOSITIONS FOR GRASS}

The present invention relates to a herbicide composition for grass, and more particularly, by selecting specific herbicides from known herbicides and mixing them with tourmaline treated water, and further adding wood vinegar solution to them, each herbicide is used separately. It has a broader and better herbicidal effect, and by using each herbicide below the standard content, it is possible to minimize the weakening and natural destruction effects of the grass, and to promote the development of grass. It relates to a herbicide composition for grass.

Herbicides are drugs used to deprive nutrients needed by crops or to damage the growth environment of crops, and to control weeds, which are competitive plants for crop growth. In the early 1940s, 2,4-D and MCPA were herbicides. Many herbicides have been developed and used.

Herbicides are categorized into non-selective herbicides that kill all plants in the sprayed area and selective herbicides that can be used to control weeds during crop cultivation, depending on their action characteristics. Inhibition, chlorophyll production inhibition, yellow pigment-related photosynthesis inhibition, photosynthesis inhibition by active oxygen generation, etc.), energy production inhibitors, plant hormone inhibitors, protein biosynthesis inhibitors, cell division inhibitors, amino acid biosynthesis inhibitors, fatty acid synthesis inhibitors, etc. do. In addition, herbicides are classified into pre-emergence and post-emergence according to the time of use, which are also referred to as soil treatment and foliage treatment.

And herbicides depending on the composition of the active ingredient, ① phenoxy system: 2,4-D, 2,4-DP, MCPA, MCPP, MCPB, ② Phenol (phenol): PCP (pentachlorophenol) , ③ Amide (amide): Propane (propanil), Butachlor (butachlor), Alachlor (alachlor), ④ carbamate system: chlorpropham, chlormedham, phenmedipham, ⑤ urea system: metabenzthiazuron, ⑥ triazine system: atrazine , Simazine, ⑦ bipyridylium system: paraquat, uracil system: bromacil, betazone, and other organic herbicides: glyphosate. Inappropriate use of herbicides during lawn cultivation may cause damage to the grass. Therefore, the herbicide should be carefully sprayed in consideration of the selectivity and the time of use.

There are about 1800 weeds in agricultural lands worldwide, and 200 of the major weeds in food crops are known. In Korea, 461 species of weeds are known. Among them, weed control targets present on the lawn are known as about 50 to 70 species. In conventional weed control operations, two or more types of herbicides are mixed and used to efficiently control various types of weeds, but even a small amount of the herbicides used in the mixing causes the grass to become weak. Therefore, in order to solve these problems, two or more herbicides are mixed to reduce the amount of each use, while urea fertilizer and iron fertilizer are used to efficiently control the grass, but do not cause damage such as grass damage. The herbicide composition is disclosed in Korean Patent No. 10-0413011, but the present inventors used the composition and content as described above, and it was confirmed that the herbicidal effect was insufficient, and therefore, each noticed to see the herbicidal effect. Since the use of the reference content was inevitable, it was confirmed that there was little effect of reducing the amount of herbicides reported.

Therefore, the present invention has excellent herbicidal effect, in order not to harm grass and natural environment, by selecting a specific herbicide from known herbicides and mixing it with tourmaline treated water, by adding wood vinegar solution to each, It has a wider and better herbicidal effect than when using herbicides, and by using each herbicide below the standard content, it is possible to minimize the weakening and natural destruction effects of the grass, To provide a grass herbicide composition for promoting.

In order to solve the above problems, 100-150 ml of MCPP (methylchlorophenoxypropionic acid) having a concentration of 50% by weight in 200 L of tourmaline treated water and 2,4-D (2,4-Dichlorophenoxy acetic acid) having a concentration of 40% by weight of 70 To provide a herbicide composition for grass, characterized in that it comprises ~ 100ml, 70-100ml of dithiopyr at a concentration of 38% by weight, 150-200ml of imazaquin at a concentration of 20% by weight and 0.2-0.4L of wood vinegar.

Grass herbicide composition of the present invention by selecting a specific herbicide from known herbicides and mixing it with tourmaline treated water, by adding more wood vinegar solution, it is more broad and superior herbicide effect than when using each herbicide In addition, by using each herbicide below the standard content, it is possible to minimize the weakening and natural destruction effects of the grass, as well as to promote the development of grass.

The present invention is 100 ~ 150ml of MCPP (methylchlorophenoxypropionic acid) of 50% by weight in 200 liter of tourmaline water, 70 ~ 100ml, 2,4-D (2,4-Dichlorophenoxy acetic acid) of 38% by weight of 40% by weight It relates to a herbicide composition for grass comprising a dithiopyr of 70 to 100ml in concentration, 150-200ml of imazaquin in concentration of 20% by weight and 0.2-0.4L of wood vinegar.

MCPP (methylchlorophenoxypropionic acid) in the grass herbicide composition according to the present invention is a phenoxy-based hormonal herbicide. MCPP is a herbicide used for broad-leaved weeds such as crova grown largely because of its fast transition in plants and slow degradation and excellent foliage treatment effect before germination treatment. The reported usage of MCPP is known to be 350 ml in 200 liters of water for a 50 wt% MCPP concentration. It is assumed that the amount used is the amount of herbicide used in the range that does not harm grass. In the present invention, 100 to 150 ml of MCPP having a concentration of 50% by weight was used in 200 L of tourmaline treated water.

2,4-D (2,4-Dichlorophenoxy acetic acid) in the herbicide composition for grass according to the present invention was discovered in 1942 by Zimmerman in the course of research of synthetic auxin 2,4-D exhibits herbicidal activity at high concentrations A commercialized herbicide, a hormonal herbicide known as phenoxy. 2,4-D shows phytohormonal activity and is absorbed in almost all parts of the plant and accumulates in active cell division such as growth point, causing abnormal cell division. In particular, it inhibits assimilation, promotes respiration, and inhibits IAA (indole-3-acetic acid) production. It has selective activity in broadleaf weeds and can be used as a selective or non-selective herbicide by controlling the amount used. The reported usage of 2,4-D is known to be 140 ml in 200 liters of water for a 40% by weight concentration of 2,4-D. It is assumed that the amount used is the amount of herbicide used in the range that does not harm grass. In the present invention, 70-100 ml of 2,4-D having a concentration of 40% by weight was used for 200 L of tourmaline treated water.

Dithiopyr in the grass herbicide composition according to the present invention is excellent in the herbicidal effect on the first year flower and weeds (three-leaf weed) and broadleaf weeds as a soil germination treatment agent. Dithiopyr not only kills the weed seeds, but also has a superior herbicidal effect on young shoots immediately after weed seeds germinate. Mechanisms of action are known to inhibit microtubule formation during cell division. The reported usage of dithiopyr is known to be 150 ml in 200 liters of water for 38 weight percent dithiopyr. It is assumed that the amount used is the amount of herbicide used in the range that does not harm grass. In the present invention, 70 to 100 ml of dithiopyr having a concentration of 38 wt% was used in 200 L of tourmaline treated water.

In the grass herbicide composition according to the present invention, imazaquin is an imidazolinones-based selective herbicide that is absorbed by the leaves and roots of the plant and moved to the plant meristem through the coronal and water ducts. Used as a treatment and foliage treatment. Imazaquin inhibits protein biosynthesis by inhibiting ALS (acetolactate synthase), which is involved in the biosynthesis of valine, leucine and isoleucine, essential amino acids in plants, and eventually inhibits DNA synthesis and cell growth. It has a herbicidal effect. The reported usage of Imazaquin is known as 400 ml in 200 liters of water for a 20 wt% concentration of Imazaquin. It is assumed that the amount used is the amount of herbicide used in the range that does not harm grass. In the present invention, Imazaquin at a concentration of 20 wt% was used in 200 L of tourmaline treated water in 150-200 ml.

In the grass herbicide composition of the present invention by using a mixture of the four herbicides in a certain ratio, while using the properties of each herbicide, by using the mixture by using each of the independent increase is not obtained Could have an effect. In other words, the herbicide composition for grass of the present invention has the effect of treating the foliage of broadleaf weeds, including MCPP (methylchlorophenoxypropionic acid), has the effect of removing broadleaf weeds including 2, 4-D, and does not germinate yet including dithiopyr. For weeds, it has the effect of suppression of germination and treatment of flower and weeds (leafy weeds), and soil treatment and foliage treatment effects including Imazaquin. Weeds could be removed, herbicidal activity was increased, and herbicidal effects could be maintained for a long time.

The grass herbicide in the grass herbicide composition according to the present invention refers to a liquid obtained by capturing and cooling the smoke generated when carbonizing wood, and the properties of the wood vinegar are somewhat different depending on the carbonization method and the type of charcoal used. (About pH 3) was taken out. In particular, the wood vinegar is composed of 10 to 20% of the organic compound, containing about 300 organic substances. It is known that wood vinegar is effective in controlling pests, germinating grass, promoting growth, increasing yield, and improving quality. The herbicide composition of the present invention is characterized by having not only the same herbicidal effect but also the effect of promoting the development of grass by reducing the amount of herbicide by using wood herb solution together in four herbicides. In the present invention, by using the wood vinegar in the ratio of 1/1000 to 1/500 of the mixed volume of the selected four herbicides and the tourmaline treated water, the amount of herbicide as well as the effect of promoting growth and quality improvement of grass Reduced below, but also resulted in increased herbicidal power.

Tourmaline, also known as tourmaline, has the physical characteristics of generating voltage when pressure is applied to crystals, and generating charge on the surface when temperature changes, and useful elements such as silicon, boron, magnesium, iron, and calcium. It is known to have the effect of eluting the mineral component, and also to reduce the number of water molecules or to reduce the cluster of water. In addition, far-infrared radiation emitted from tourmaline ores is known to play a role of improving the health of the human body by improving the immune function, blood circulation, autonomic nerves, audiovisual, ocular nerves and the like. In the present invention, the use of tourmaline treated water as the solvent for diluting the herbicide, through experiments to find that the growth of the grass is better, it is characterized in that it is used as a diluent solvent of the herbicide.

When the herbicides are used separately, the herbicide effect and the herbicide effect when the mixture is used at a predetermined ratio are shown in Tables 1 and 2. Table 1 is a table showing the herbicidal effect on annual (or biennial) weeds, Table 2 is a table showing the herbicidal effect on perennial weeds. The signs of spring, summer and autumn in Tables 1 and 2 mean spring weeds, summer weeds, autumn and winter weeds, respectively.

TABLE 1

TABLE 2

(○ mark indicates that weeds dry after 2 weeks of spraying, but weeds reappear after about 1 month, and ◎ indicates that weeds do not sprout even after 1 month of spraying. Excellent herbicidal effect, blank indicates no herbicidal effect.)

Comparative Example 1 is a case where MCPP (methylchlorophenoxypropionic acid) is used alone as much as the amount of the notification.

Comparative Example 2 is a case in which 2,4-D (2,4-Dichlorophenoxy acetic acid) is used alone as much as the amount of notification.

Comparative Example 3 is a case where dithiopyr is used alone as much as the amount of use reported.

Comparative Example 4 is a case where imazaquin is used alone as much as the amount of the notification.

Example 1 is 150 ml of 50% by weight of methylchlorophenoxypropionic acid (MCPP), 200 ml of 2,4-D (2,4-Dichlorophenoxy acetic acid) in 40% by weight, and dithiopyr in 38% by weight. This is the case when 200 ml of imazaquin is mixed in 100 ml and 20 wt% concentration and 0.2 l of wood vinegar is added thereto.

As can be seen in Table 1 and Table 2, MCPP (methylchlorophenoxypropionic acid), 2,4-D (2,4-Dichlorophenoxy acetic acid), dithiopyr, and imazaquin are used at a certain ratio, rather than using the amounts as indicated. Mixing can not be obtained a wide range of weed removal effect, it can be seen that the herbicidal effect is excellent while reducing the amount of each herbicide. In addition, the herbicide composition for grass of the present invention is reduced by up to 50% of the noticed amount of use of each herbicide to minimize damage to the grass and the environment, while the herbicide effect is better than that of each herbicide alone I could confirm it.

For example, as shown in Table 1, as in the case of vast spring weeds in annual spring, there was no herbicidal effect when using MCPP, dithiopyr or imazaquin alone, and when 2,4-D alone was used, two weeks after spraying The weeds are dry, but after about one month weeds fly again, while the herbicide composition of the present invention (Example 1) when spraying the excellent weeding effect does not appear even after one month after spraying , It was confirmed that the composition of the present invention has an increased herbicidal effect not obtained when each herbicide is used separately.

In addition to the weeds, it was confirmed that the herbicidal effect is better when using a mixture of MCPP, dithiopyr, imazaquin, 2,4-D as the composition of the present invention than each herbicide alone, and also the table below As can be seen in 3, it was confirmed that the effect of reducing the amount of use by up to 50% or more than the amount of the noticed.

TABLE 3

In addition, in order to see the effect of the wood vinegar and tourmaline treated water in the herbicide composition for grass of the present invention, the results of the comparative experiment are shown in Tables 4 and 5. Table 4 is a table showing the herbicidal effect on annual (or biennial) weeds, Table 5 is a table showing the herbicidal effect on perennial weeds. The signs of spring, summer and autumn in Tables 4 and 5 mean spring weeds, summer weeds, autumn and winter weeds, respectively.

TABLE 4

TABLE 5

(○ mark indicates that weeds dry after 2 weeks of spraying, but weeds reappear after about 1 month, and ◎ indicates that weeds do not sprout even after 1 month of spraying. Excellent herbicidal effect, blank indicates no herbicidal effect.)

Example 1 is 150 ml of 50% by weight of methylchlorophenoxypropionic acid (MCPP), 200 ml of 2,4-D (2,4-Dichlorophenoxy acetic acid) in 40% by weight, and dithiopyr in 38% by weight. This is the case when 200 ml of imazaquin is mixed in 100 ml and 20 wt% concentration and 0.2 l of wood vinegar is added thereto.

Example 2 is 150 ml of 50% by weight methylchlorophenoxypropionic acid (MCPP) in 200 l of water, 100 ml of 2,4-D (2,4-Dichlorophenoxy acetic acid) in 40% by weight, and 100 ml of dithiopyr in 38% by weight. In this case, 200 ml of imazaquin in 20 wt% concentration is used.

Example 3 comprises 200 ml of water, 50 ml of MCPP (methylchlorophenoxypropionic acid) at a concentration of 50% by weight, 2,4-Dichlorophenoxy acetic acid (100) at 40% by weight, and 100 ml of dithiopyr at 38% by weight. In this case, 200 ml of imazaquin in 20 wt% concentration was mixed and 0.2 liter of wood vinegar was added thereto.

As can be seen from the above results, Example 3 in which water was used as a diluting solvent of the grass herbicide, and water was used as the diluting solvent than in the case of Example 2, in which no wood vinegar was added, and wood vinegar was added, was herbicidal effect. It can be seen that even better. In addition, it was found that the herbicidal effect was more excellent when tourmaline treated water was used as in Example 1 than when water was used as the diluting solvent (Examples 2 and 3).

Therefore, when combining the results of the above Tables 1 to 4, specific herbicides of the known herbicides such as MCPP (methylchlorophenoxypropionic acid), 2,4-D (2,4-Dichlorophenoxy acetic acid) , dithiopyr and imazaquin were selected and mixed with tourmaline treated water, and further wood vinegar was used, which had a broader and better herbicidal effect than the respective herbicides, and each herbicide reference content. By enabling the use of the following it was found that there is an effect that can minimize the weakening and natural destruction effects that occur in the grass.

If necessary for the herbicidal composition for lawn grass of the present invention, well-known fungicides, insecticides, comparisons, electrodeposition agent can be added to use, as well as those of ordinary skill in the art to which the present invention belongs Of course, various modifications and variations are possible within the scope of the equivalent.

Claims (4)

delete delete delete 100 to 150 ml of MCPP (methylchlorophenoxypropionic acid) at 50 wt% concentration in 200 liter of tourmaline water, 70 to 100 ml of 2,4-D (2,4-Dichlorophenoxy acetic acid) at 40 wt% concentration, dithiopyr at 38 wt% concentration Grass herbicide composition, characterized in that it comprises 70 ~ 100ml, 20-% by weight of imazaquin 150-200ml and wood vinegar solution 0.2-0.4L.