HU183094B - Herbicide composition containing inorganic salt and triazine deriwatives as active substances - Google Patents

Abstract

The present invention relates to a herbicidal composition comprising two active ingredients comprising an inorganic salt and a triazine derivative, characterized in that it contains from 0.1 to 95% by weight of (a) sodium hydrogensulfate or potassium hydrogen sulfate, or sodium hydrogen sulphite. potassium hydrogen sulfite and b) a triazine derivative of formula I wherein X represents a halogen atom, preferably a chloro atom or a C1-2 alkylthio group and Rt and R2 represent the same or different C1-4 alkyl groups - 0.1: 1 to 4 Contains a mixture of 1, preferably 0.2: 1 to 3: 1, with one or more conventional carriers, preferably kaolin, and / or diluent, preferably water or aqueous acetone, and optionally an emulsifier, preferably dodecylbenzene sulfonic acid. and / or with a dispersant, preferably a sulfite powder. The herbicidal action of the composition according to the invention is more pronounced in the composition containing the organic herbicide alone, and preferably contains 25-35% of the less polluting organic material. It is also progressing with higher herbicidal activity and higher yields. R1 -1-

Description

The present invention relates to an herbicidal composition containing an inorganic salt and a triazine derivative as an active ingredient.

More particularly, the present invention relates to a herbicidal composition as an active ingredient

(a) sodium bisulfate or potassium bisulfate or sodium bisulfite or potassium bisulfite; and

(b) a triazine derivative of formula (I) wherein:

X represents a halogen atom, preferably a chlorine atom or a C 1-2 alkylthio group and

R 1 and R _{2 represent the} same or different C 1 -C 4 alkyl groups - a mixture thereof.

Besides the successes achieved, the chemicalisation of agriculture carries numerous dangers. These include environmental problems, soil contamination, which causes damage to beneficial organisms in the soil, and, with rain and irrigation, some of the herbicidal organic compounds reach the river basins (rivers, lakes, etc.) and fish stocks. can cause death, etc. Therefore, in addition to the benefits of using herbicidal organic compounds, it is necessary to simultaneously reduce the amount of herbicidal compounds used as far as possible while maintaining at least the same herbicidal activity.

It has been found that mixing these known herbicidal organic compounds with sodium bisulfate or potassium bisulfate or sodium bisulfite or potassium bisulfite and using the mixture as a herbicide enables organic herbicidal compounds to be used. reducing or possibly eliminating its phytotoxicity by replacing a substantial portion of it with non-phytotoxic, readily available inorganic salts. The inorganic salts may optionally also be used in the form of a hydrate. The herbicidal activity of the above mixture is increased synergistically, or at least to the same extent as with the same amount of the herbicidal organic compound used alone; crop plants grow more and become stronger and produce significant surpluses.

The use of the two active herbicidal compositions of the present invention is significantly more economical than the use of herbicidal organic compounds alone, which are often difficult to synthesize in many steps, since less or more of these can be replaced by commercially available inorganic salts. In addition, the herbicidal activity of the combination preparation by simple mixing is increased or at least not reduced compared to the same amount of standard herbicidal organic compounds used alone.

Examples of triazines of the formula I used as herbicidal components in the composition of the present invention are as follows:

- ethylamino-4-isopropylamino-6-methylthio-1,3,5-triazine (Ametryne),

- chloro-4-ethylamino-6-isopropylamino-1,3,5-triazine (Atrazine),

2,4-diisopropylamino-6-methylthio-1,3,5-triazine (Prometryne),

2-chloro-4,6-diisopropylamino-1,3,5-triazine (Propazine),

- tert-butylamino-4-ethylamino-6-methylthio-1,3,5-triazine (Terbutryne),

2-chloro-4,6-diethylamino-1,3,5-triazine (Simazine).

The herbicidal compositions according to the invention may contain mixtures of inorganic salts and organic compounds having a herbicidal action in a weight ratio of 0.1: 1 to 4: 1, preferably 0.2: 1 to 3: 1.

Mixtures of the inorganic salts and organic compounds of herbicidal activity according to the invention (herbicidal active compound mixtures), after processing into preparations, can be used as a pesticide in agriculture or horticulture.

Mixtures of inorganic salts and organic compounds having a herbicidal action are prepared according to conventional methods. In these compositions, the herbicidal active compound mixture of the present invention is admixed with solid or liquid inert carriers or diluents and optionally other excipients or carriers.

Such excipients include, for example, surfactants such as wetting, emulsifying and dispersing agents, anti-caking agents, lubricants, adhesives, adhesives, coloring agents, corrosion inhibitors, suspending agents, or agents that can be applied to the treated area. or other biologically active substances and / or substances which maintain or enhance the biological activity.

Suitable solid carriers or diluents include inactive minerals such as alumina, talc, calcined magnesium oxide, diatomaceous earth, tricalcium phosphate, cork dust, carbon black, clays such as kaolin and bentonite, montmorillonite, diatomaceous earth, attit phosphate, calcium carbonate, mica, pyrophyllite, dolomite, gypsum, colloidal silica, Fuller earth, Hewitt earth, porcelain earth, etc.

Suitable liquid carriers or diluents include aqueous, organic and / or aqueous-cartilage solvents such as water, ketones such as acetophenone, cyclohexanone, isophorone, aromatic hydrocarbons such as benzene, toluene, xylene, alkylnaphthalenes, tetrahydronaphthalene. , chlorinated hydrocarbons such as chlorobenzenes, ethylene dichloride, trichloroethylene, tetrachloroethane, alcohols such as methanol, butanol, isopropyl alcohol, propylene glycol, diacetone alcohol, kerosene, mineral, animal and vegetable oils, aliphatic, aromatic petroleum distillates such as naphtha and distilled tar oil, polar organic solvents such as dimethylsulfoxide, dimethylformamide, and mixtures of the above liquids.

The wetting, dispersing and emulsifying surfactants used may be of the ionic or non-ionic type.

Nonionic agents are, for example, ethylene oxide with C 10 -C 20 fatty alcohols such as oleyl alcohol, cetyl alcohol, octadecyl alcohol or alkylphenols such as octylphenol, nonylphenol, octylcresol or amines such as such as oleamine, condensation products of mercaptans such as dodecyl mercaptan or carboxylic acids, and partial esters of long chain fatty acids and hexitan anhydrides, condensation products of the above partial esters with ethylene oxide, fatty acid esters of lecithins, polyalcohols, and the like.

The ionic agents can be cationic or anionic.

183,094

Suitable cationic agents are, for example, quaternary ammonium compounds such as cetyltrimethylammonium bromide, cetylpyridinium bromide, dioxoethylbenzyldodecylammonium chloride and the like.

Suitable anionic agents are, for example, salts of soaps, aliphatic monoesters of sulfuric acid, such as sodium lauryl sulfate, sodium salt of dodecyl alcohol sulfuric acid, salts of sulfonated aromatic compounds such as sodium dodecylbenzosulfonate, sodium, or mixtures of ammonium lignosulfonate, butylnaphthalenesulfonate and sodium salts of diisopropyl and triisopropylnaphthalenesulfonic acids, sodium salts of a petroleum sulfonic acid, or potassium or triethanolamine salts of oleic acid or abietic acid, and the like.

Suitable suspending agents are, for example, hydrophilic colloids such as polyphvinylpyrrolidone), sodium carboxymethylcellulose, and plant gums such as acacia gum, tragacanth gum.

Suitable adhesives such as lubricants such as calcium or magnesium stearate, adhesives such as polyvinyl alcohol, cellulose derivatives or other colloidal materials such as casein or mineral oils.

Suitable dispersants are, for example, methylcellulose, lignin sulfonates, alkyl naphthalene sulfonates and the like.

Suitable additives for distribution, adhesion, rain resistance or penetration include fatty acids, resins, glues, casein or alginates.

The active ingredient components of the compositions of the present invention can be formulated with various carriers or excipients as described above to form various solid or liquid compositions.

Solid compositions can be, for example, powders, preferably wettable powders and / or dispersible powders, granules or granules, pastes and the like.

Liquid formulations include, for example, solutions, directly sprayable solutions, either aqueous solutions or solutions in organic solvents, including oily solutions and miscible oils, dispersions, suspensions, preferably aqueous suspensions, aqueous or oily emulsions. , invert emulsions Etc.

For example, the powder formulations may be prepared by thoroughly mixing a mixture of the inorganic salt (s) and herbicidal active compounds (herbicidal active compounds) of the present invention with one of the aforementioned inert solid carriers.

Wettable or dispersible powders are prepared by admixing the herbicidal active compound according to the present invention with one of the above-mentioned wetting or dispersing agents in addition to an inert solid carrier.

For example, the granular compositions may be prepared by dissolving the herbicidal active compound mixture of the invention in a solvent, in the presence of a binder, a particulate carrier such as porous granules such as pumice or attacular, mineral non-porous granules such as sand or clay earth. , or applied to the surface of organic granules, such as black earth or cut tobacco sticks, optionally dried. Further, a granular composition can be prepared by compressing the active ingredient mixture with powdered minerals in the presence of a lubricant and binder, cutting the compressed material and sifting it to the desired particle size. A preferred embodiment of the granular preparation is dry or wet granulation, which may be either wet granulation or structural granulation.

Aqueous solutions, dispersions, suspensions or emulsions are prepared by dissolving the herbicidal active compound mixture of the present invention in an organic solvent, optionally containing one or more wetting, dispersing, suspending or emulsifying agents, optionally adding to water, optionally it may also contain one or more wetting, dispersing or emulsifying agents.

Mixable oils are prepared by dissolving or finely distributing the herbicidal active compound mixture of the present invention in a suitable solvent, which is slightly miscible with water, with the addition of an emulsifier.

Directly sprayable solutions are prepared by dissolving the herbicidal active compound mixture according to the invention in a solvent having a high or medium boiling point, preferably above 100 ° C.

An invert emulsion may be prepared by emulsifying water in an oily solution or suspension of the herbicidal active compound mixture of the present invention in water prior to or during spraying.

For the preparation of aqueous applications, it is particularly suitable to use high-concentration emulsion concentrates, pastes, wettable spray powders which can be diluted with water to the desired concentration before use. These concentrates are formulated so that they can be stored for an extended period of time and, after storage, dilute with water to form a homogeneous aqueous formulation that can be used with conventional spraying equipment. The concentrates generally contain from 10 to 85% by weight, preferably from 25 to 60% by weight; after this dilution, the aqueous preparation contains 0.1 to 3.00% by weight of active ingredient.

The amount of the herbicidal active compound mixture required to achieve the desired effect in the herbicidal compositions of the present invention may vary within wide limits, depending on the method of preparation and use, more particularly 0.1 to 95% by weight. In the so-called "ultra-low-volume" (ULV) application method, the herbicidal active compound mixture of the present invention may be used with very small amounts of additives, preferably 90-95% by weight, from very fine spraying equipment, preferably airborne. . In the case of diluted agents, this concentration may generally range from 0.1% to 20% by weight, and in the case of concentrated agents, from 20% to 95% by weight. The wettable powders contain, for example, 5 to 80% by weight, preferably 10 to 60% by weight, of emulsifiable concentrates, 5 to 70% by weight, preferably 10 to 50% by weight, and 0.5 to 10% by weight, preferably 1 to 5% by weight, of powder formulations. % may.

The herbicidal compositions of the present invention may be sprayed, dusted or sprayed, soil irrigators, dip baths, etc. however, the type of preparation will always be selected according to the requirements of the intended use.

The herbicidal composition according to the invention is known to be applied to the soil and / or to the seeds and / or soil.

-3183,094 and / or applied to the plant and / or to certain parts of the plant.

The treatment of the seeds can be carried out, for example, by coating the seeds with the herbicidal mixture according to the invention, optionally with carriers, while mixing. The herbicidal active compound mixture may also be applied to the seeds together with the above-mentioned surfactant wetting agents and optionally carriers. In this case, the mixture of the herbicidal active compound, the surfactant and the carrier is first moistened with a little water and then the seeds are mixed with the suspension.

The herbicidal compound according to the invention may also be applied to the furrow when sowing seeds, in the form of a powder mixture with sand, soil or powdered solid carriers as mentioned above, optionally with one of the above-mentioned surfactants.

The herbicidal active compound mixture of the invention may also be applied to the seeds in the form of an aqueous spray optionally containing any of the above surfactant dispersants and / or powdered solid carriers before, during or after sowing.

The composition of the herbicidal active compound mixture according to the invention is applied to the environment of the plants or to parts of the plants, such as leaves, for example by spraying, dusting or in the form of an aqueous spray, etc. or applied to the soil, for example by soil irrigation, flooding or incorporation into the soil, whereby the seeds are sown in the grooves in the treated soil.

The herbicidal composition of the invention can be used to control both monocotyledonous and dicotyledonous weeds. The treatment can be carried out either pre-emergence or post-emergence (post-emergence) or by incorporation into soil.

It has been found that the herbicidal compositions according to the invention exert their selective herbicidal activity especially in maize, soybean and potato crops.

The dosage required for a satisfactory effect of the herbicidal compositions of the invention will depend on many factors, such as the species, condition of the crop to be treated, other plants growing in the vicinity of the crop to be treated, the species of weed to be controlled, its application, the herbicidal composition. climatic conditions and the treatment before or after emergence of the plants or in the soil and the application of the composition. Accordingly, the optimum dose is determined empirically in each case. Usually, however, 0.1 to 30 kg of active substance per hectare is applied.

The preparation of the herbicidal composition according to the invention is illustrated by the following non-limiting examples.

Preparation of herbicidal preparations

EXAMPLE 1 2- (tert-Butylamino) -4-ethylamino-6-methylthio-1,3,5-triazine and sodium bisulfate monohydrate

The 1: 1 mixture was mixed with 2 parts by weight of alkylaryl polyglycol ether and 3 parts by weight of sulphite alkaline powder, then 45 parts by weight of kaolin were added and mixed until complete momogenity. The mixture is then ground in a fine mill to a minimum particle size of 20 μ. In this way, a composition containing 50% of the active ingredient is obtained, which can be diluted with water to any concentration.

Example 2 A mixture of atrazine (2-chloro-4-ethylamino-6-isopropylamino-1,3,5-triazine) and 5 kg of potassium bisulfite was homogenized with 0.2 kg of alkylaryl polyglycol ether and 0.15 kg of sulfite alkali powder. grind the mixture to a size of less than 50 μ. In this way, a composition containing 95% by weight of the active ingredient is obtained, which is then sprayed with water according to the required concentration.

Example 3 A 1: 1 mixture by weight of 2- (tert-butylamino) -4-ethylamino-6-methylthio-1,3,5-triazine and sodium bisulfate monohydrate, 60 parts by weight of methanol and 10 parts by weight of an emulsifier. containing dodecylbenzenesulfonic acid calcium and polyglycol ether in a 1: 1 ratio.

Example 4

6.21 g of Ametryne 100% active ingredient (2-ethylamino-6-methylthio-4-isopropylamino-1,3,5-triazine) and 3.76 g of sodium bisulfate monohydrate are finely crushed and The resulting mixture was dissolved in 1000 ml of 0.12 g of nonit (dioctylsulfosuccinate sodium) in 60% aqueous acetone and used as a slurry.

Example 5

160 g of the commercially available pesticide Merkazine ^R 50 WP containing Prometryne (2,4-diisopropylamino-6-methylthio-1,3,5-triazine) are suspended in 1000 ml of water with stirring and 40 g of solid potassium hydrogen sulfate are added in small portions. and stirring is continued until the potassium hydrogen sulfate is dissolved. The solution is used as a spray.

Screeing tests

The susceptibility of monocotyledonous and dicotyledonous species to each of the herbicidal organic compounds was taken into account in the selection of the test plants.

Depending on the organic compounds having herbicidal activity, different test plants are tested alternately. Among the monocots, Zea mays (maize), Avena sativa (oats), Hordeum distichon (barley), Panicum miliaceum (millet), Setaria glauca (dwarf muhar), Echinochloa

183,094 crus-galli; of the dicotyledonous species Trifolium pratense (red clover), Papaver somniferum (poppy), Beta vulgaris (sugar beet), Solanum lycopersicum (tomato) and Brassica napus (rapeseed) are the test plants.

In a greenhouse, place a 5 cm high quartz sand in a 32x27 cm plastic tray, place the seeds on it, and cover with 1 cm thick river sand for even germination. A 1% and 2% solution is prepared from the standard herbicidal organic compound and mixtures of the herbicidal organic compound (s) and sodium bisulfate monohydrate, potassium bisulfate. Spray 100-100 ml of the solution onto a surface of 1 m ² in the center of which the seed seed tray is placed, which is equivalent to 10 and 20 kg / ha, respectively. Spraying is performed with a laboratory hand-held sprayer by applying multiple overalls so that an equal amount of spray is applied over the entire surface of 1 m ² . The herbicidal activity and selectivity are evaluated on the basis of the percentage of dead and sown seeds and the bonitity of phytotoxic damage by counting the seedlings at two-week intervals and evaluating any phytotoxic damage.

Seeds of test plants shall be sown according to the size and extent of the seeds:

10 pieces of Zea mays (corn),

10 pieces of Avena sativa (oats).

10 pieces of Hordeum distichon (barley),

10 pieces of Panicum miliaceum (millet),

10 pieces of Setaria glauca (muhar),

50 pieces of Echinochloa crus-galli (Cocksfoot),

50 pieces of papaver somniferum (poppy),

Be ta vulgaris (sugar beet) 10 pieces,

Brassica napus (rapeseed) '10 pieces,

Solanum lycopersicum (tomato) 50 pieces,

Example 6 62.4% Ametryne (2-ethylamino-4-isopropylamino-6-methylthio-1,3,5-triazine) (100% active ingredient) and 37.6% sodium hydrogen sulphate mono ^: herbicidal mixture containing hydrate or 1 g of 62.7% by weight of Ametryne (100% active ingredient) and 37.3% by weight of potassium hydrogen sulphate in 100-100 ml of 0.012 g of Nonit (dioctylsulfosuccinate sodium) in 60% aqueous acetone, standard 1 g Ametryne (100% active ingredient) was dissolved in 100 mL of 0.012 NON-chloroform. Pre-emergence treatment with the above solutions is carried out and the effect of the herbicidal compound mixtures on the test plants listed is tested at a dose of 10 kg / ha.

The results of the test are given in the table below:

Product Name, Number, Dose Test Plants % Of deaths Ametryne standard (2475) 10 kg / ha Ametryne + NaHSO ₄ -H ₂ O (2492) 10 kg / ha Ametryne-t khso ₄ (2494) 10 kg / ha Zea mays 0 0 0 Avena sativa 0 60 50 Trifolium pratense 100 100 100 Papaver somniferum 100 100 100 Brassica napus 50 80 95 Panicum miliaceum 10 80 40 Setaria glauca Echinochloa crus- 0 0 0 galli 0 0 0

The data in the table show that the selectivity of the herbicide mixtures for Zea Mays (maize) is unchanged compared to the standard Ametryne, whereas it enhances the herbicidal activity against herbicide resistant monocotyledonous Panicum miliaceum (millet) and harmful Brassica (rapeseed). despite the Ametryne content of herbicidal active compound mixtures is only 62-63%.

Example 7 63.4% Prometryne (100% active ingredient) (2,4-diisopropylamino-6-methylthio-1,3,5-triazine) and 36.6% sodium bisulfate monohydrate, respectively. g of 63.9% by weight of Prometryne (100% active ingredient) and 36.1% by weight of potassium hydrogen sulphate in 100-100 ml of 0.012 g of nonit (dioctylsulphosuccinate sodium) in aetone, using 1 g of Prometryne as standard (100% active ingredient) is dissolved in 100 ml of chloroform. In this way, pre-emergence treatment is carried out and the effect of the herbicidal mixture is tested at a dose of 10 kg / ha.

The results of the test are given in the table below:

Product Name, Number, Dose Test Plants % Of deaths Prometryne standard (2473) 10 kg / ha PrometryneT NaHSO ₄ -H ₂ O (2493) 10 kg / ha Prometryne + KHSO " (2491/1) 10 kg / ha Zea Mays 0 0 0 Avena sativa 0 60 10 Trifolium pratense 60 100 100 Papaver somniferum 100 100 100 Brassica napus 20 80 70 Panicum miliaceum 5 70 20 Setaria glauca 0 0 0 Echinochloa crus- galli 0 0 0

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From the data in the table it can be stated that the same dose of herbicidal active compound mixtures with the same dose, with the same selectivity for Zea mays (maize), increases the herbicide-resistant Panicum miliaceum (millet) by 65%. The herbicidal activity against dicotyledonous Brassica (rape) is also increased by 50-60%, despite the fact that Prometryne content of herbicidal active compound mixtures is only 63-64% of the standard.

Example 8

Terbutryne [2- (tert-butylamino) -4-ethylamino-6-methylthio-1,3,5-triazine] and sodium bisulfate monohydrate and potassium bisulfate, by weight, as shown in the table below, A herbicidal mixture is made up of 100 g of 0.012 g of Ncnit (dioctylsulfosuccinate) in 100 ml of 100% 0.01 g of Nonit (dioctylsulfosuccinate sodium) in 60% aqueous acetone, using 1 g of Terbutryne (100% active ingredient) as the standard. sodium) in chloroform. The solutions are sprayed onto a surface of 1-1 m ² , the center of which is previously seeded in a plastic tray prepared as described above. In this way, a pre-emergence treatment is carried out and the effect of the herbicidal compound mixtures is tested at a dose of 10 kg / ha.

Name, number and dose of the agent The content of Terbutryne in the herbicidal mixture is% s % Of deaths Zea mays Panicum 1 miliaceum Brassica napus Terbutryne standard (2474) 10 kg / ha 100 0 0 0 Terbutryne + + NaHSO ₄ -H ₂ P (2483) 10 kg / ha 77.8 0 10 70 Terbutryne + + NaHSO ₄ -H ₂ O (2490) 10 kg / ha 63.4 0 10 60 Terbutryne + + NaHSO ₄ -H ₂ O (2484) 10 kg / ha 46.6 0 0 40 Terbutryne + + NaHSO ₄ -H ₂ O (2485) 10 kg / ha 56.8 0 10 10 Terbutryne + + NaHSO ₄ -H ₂ O (2486) 10 kg / ha 25.1 0 30 20 Terbutryne + + NaHSO ₄ -H ₂ O (2487) 10 kg / ha 17.7 0 10 20 Terhutryne + + NaHSO ₄ -H ₂ O (2488) 10 kg / ha 14.9 0 40 10 6

Name, number and dose of the agent The content of Terbutryne in the herbicidal mixture is% s % Of deaths Zea mays Panicum miliaceum Brassica napus Terbutryne- + khso ₄ (2489) 10 kg / ha 63.9 0 20 70

It can be seen from the table that mixtures of Terbutryne and sodium bisulfate monohydrate herbicides, in particular mixtures containing 77.8-46.6% Terbutryne, have significantly better herbicidal activity and are more selective for Zea mays (maize). than the standard. It is particularly noteworthy that the herbicidal mixture of 14.9% by weight of Terbutryne and 85.1% by weight of sodium bisulfate monohydrate is not phytotoxic to Zea mays (maize). The herbicidal effect on Brassica napus (rapeseed) is significantly better with herbicidal mixtures containing 22% sodium bisulfate monobydrate and 36% potassium bisulfate.

I. Small-plot experiments

The experiments were carried out on brown forest soils with 2 to 2.5% humus content of 30-40 cm. In the pre-experimental period, 20 cm deep summer plowing was carried out after the pre-crop was harvested and the plowed soil was rolled. The seedbed (disc, cultivator) was prepared immediately before sowing. In order to preserve the moisture content of the soil, we first used a ring roller to pass the soil, followed by sowing.

Spraying is done preemergently at 1000 l / ha at 5 kg / ha using a small parcel sprayer.

Example 9

5X2.5 m = 12.5 m ² "random block" plot was planted in triplicate in 70x50 cm row spacing potatoes from Kisvárda, then the sown potatoes were stuffed the same day. Plots were dosed the next day at 5 to 5 kg / ha at Prometryne (2,6-diisopropylamino-6-methylthio-1,3,5-triazine) (100% active ingredient) or Ametryne (2-ethylamino-4-isopropylamino). 6-MethylthioT, 3,5-triazine) (100% active ingredient) is sprayed preemergently with a standard spray or a mixture of herbicidal active compound mixtures in the same dosage form:

(a) 63% by weight of Prometryne% by weight of sodium hydrogen sulphate monohydrate,

b) 64% by weight Prometryne s% by weight of potassium hydrogen sulfate,

c) 62% by weight of Ametryne by weight with sodium bisulfate monohydrate.

The yield-enhancing effect of herbicidal active compound mixtures with standard Prometryne,

Compared to the yield of 183,094 and Ametryne-treated small parcels, the following table is summarized. The data are the mean values of the three plots.

Mounting name Dose kg / ha Yield kg / 12.5 m ² Out Bonuses to the standard compared to untreated (Control) - 3.8 - Prometryne standard 5 8.0 100% Prometryne + + NaHSO ₄ -H ₂ O 5 13.5 169% Prometryne ++ KHS0 ₄ 5 12.0 150% Ametryne standard 5 10.0 100% Ametryne + + NaHS0 ₄ -H ₂ 0 5 13.3 133%

It can be seen from the table that mixtures of both Prometryne and Ametryne herbicides with sodium bisulfate monohydrate and potassium bisulfate produce significant yields over Prometryne and Ametryne at the same dose. Particularly outstanding is the use of Prometryne and sodium hydrogen sulfate monohydrate herbicide.

From crop and weed uptake data from small-plot experiments, Prometryne and sodium bisulfate monohydrate herbicide formulations show a more active herbicidal effect than the standard. The herbicidal activity of Prometryne and potassium bisulfate herbicide is almost identical to that of the standard except for Lepidium campest, which is completely eliminated by Prometryne and potassium bisulfate herbicide.

Example 10

On a 5X2.5 m = 12.5 m ² "random block" plot, Adepta + iregi soybeans were sown in triplicate at 30 cm row spacing. The next day, seeding was performed with Terbutryne [2- (tert-butylamino) -4-ethylamino-6-methylthio-1,3,5-triazine] (100% active ingredient) or Prometryne (2-methylthio-4,6-bis-isopropylamino). -1, 3,5-triazine) (100% active ingredient) is prepared preemergently with a spray solution of the standard or herbicidal active compound mixtures of the same composition, as follows:

(a) 65% by weight of Terbutryne% by weight of sodium hydrogen sulphate monohydrate,

b) 63% by weight Prometryne s% by weight sodium bisulfate monohydrate,

c) 64% w / w Prometryne s% potassium bisulfate.

The green weight yield enhancement effect of herbicidal active compound mixtures relative to the yield of standard parcels treated with Terbutrynen and Prometryne is summarized in the table below. The data are the mean values of three plots.

Mounting name Dose kg / ha Green weight kg / 12.5 m ² Green weight is higher than the standard untreated (Control) - 4.8 - Terbutryne (standard) 5 14.2 100% Terbutryne + + NaHS0 ₄ -H ₂ 0 5 15.0 110% Prometryne (standard) 5 12.0 100% Prometryne + + NaHSO ₄ -H ₂ O 5 15.0 125% Prometryne ++ KHSO4 5 13.6 115%

It can be seen from the table that the herbicide formulations of both Terbutryne and Prometryne with sodium bisulfate monohydrate and potassium bisulfate produce a significant excess of green weight over the same dose of Terbutryne and Prometryne standard. The green weight gain is particularly outstanding when using Prometryne and sodium bisulfate monohydrate herbicide.

Crop and weed uptake data from small-plot experiments indicate that both Terbutryne and Prometryne herbicide formulations with sodium bisulfate monohydrate exhibit more active herbicidal activity. Prometryne has a herbicidal mixture with potassium hydrogen sulphate which has the same herbicidal activity as the standard but has a higher selectivity and better selectivity.

Example 11

On 3X2.5 m = 12.5 m ² "random block" plots, Adepta + iregi soybeans are sown in triplicate at 30 cm row spacing. The next day, seeding was made from Ametryne (2-ethylamino-4-isopropylamino-6-methylthio-1,3,5-triazine) (100% active ingredient) standard or 67% Ametryne (100% active ingredient) used in the same dose. and preemergently sprayed with a spray mixture of 37% sodium bisulfate monohydrate herbicide.

The seed yield enhancement effect of the herbicide mixture relative to the yield of a standard Ametryne-treated small parcel is summarized in the following table. The data are the mean values of the three plots.

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Mounting name Dose kg / ha Yield of seed g / 12.5 m ² Seeds are surplus to the standard Ametryne (standard) 5 868 100% Ametryne + + NaHSO ₄ -H ₂ O 5 1070 123%

The table shows that, compared to Ametryne, the same dose of herbicidal active compound gives a significant seed yield, despite the fact that the amount of Ametryne in the herbicidal active compound is 37% less.

II. Small plot experiments ₂ g

The experiments were carried out uniformly in four replicates on a medium brown forest soil in a Latin brick arrangement. Soil Characteristics Bonding Number: 38; potassium ₂ 5 chloride pH: 7.16; aqueous pH: 7.9; humus content: above 42 cm: 1.92. In the year preceding the experimental year, the precursor was pea. Soil preparation and fertilization were carried out in accordance with commercial practice. The herbicides were sprayed at a rate of 1000 L / ha water with a ₂ q backpack sprayer at the occasional kg / ha doses.

Example 12 35

Corn treatment

Plots of 3.5X5 m = 17.5 m ² area are seeded with 70 cm row seeding machine MVTC-435 maize at 4 cm intervals, and each parcel is sprayed preemergently with the following formulations.

Preparation: 7 gTerbutryne 50 WP;

Formulation B: 4.48 g of Terbutryne 50 WP and 1.26 g of sodium bisulfate monohydrate, the weight ratio of the components to the active ingredient in 45 herbicidal formulations is 1: 0.56;

The results observed two months after sowing are given in the table below.

Terbutryne 50 WP = 50% 2-tert-butylamino-4-ethylamino,

A wettable powder formulation containing 6-methylthio-1,3,5-triazine.

Although standard, Terbutryne 50 WP 5 (Formulation A), by itself, significantly reduces weed cover (about 92-93%) compared to untreated plots, but it does damage plants, for example, by reducing corn height by 14-20%. In contrast, the herbicidal composition of the invention containing 50 WP Terbutryne and sodium hydrogen sulfate monohydrate ⁰ gene (Composition B) using the same dose protects corn. Generally, Terbutryne 50 WP (Formulation A), used as a standard, produces 10 to 20% plant growth, while the weed coverage is nearly identical. The herbicidal composition (composition B) of the present invention achieves these two effects (weeds and plant growth) with a saving of 33-47% Terbutryne (based on 100% active ingredient).

At the end of the growing season, the yield was measured. The moisture content of the harvested maize was determined and the measured raw weights were converted to dry weight. In each case, the yields relative to the standard formulation (100) are given in the table below.

treatments (Compositions) crop result relative to the standard formulation Experiment number untreated 70 THE 100 1201/1 B 124

From the table it can be seen that the herbicidal compositions according to the invention, in addition to their effect on weeds and on the growth of plants, also have a significant yield increasing effect.

Compared to Terbutryne 50 WP (formulation A), which is used as a standard, formulation B of the invention containing Terbutryne 50 WP and sodium bisulfate monohydrate contains 33% less Terbutryne (100% active ingredient). - produces the best yield when applied in the same dose.

treatments (Compositions) Application rate based on 100% active ingredient kg / ha Plant height in cm weed guard %-in Experiment number the b c d untreated - 102.7 89.4 86.7 95.0 68.2 THE 2 82.8 76.4 92.7 70.8 5.2 1201/1 B Ί 88.9 91.1 91.0 83.1 5.3

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Example 13

Potato treatment

Plots of 3 x ⁵ m = 15 m ² were planted with Keszthely rose potatoes at 60 cm row spacing and 30 cm planting distance, and each parcel was sprayed preemergently with the following compositions.

Preparation: 6 g Terbutryne 50 WP;

Formulation B: 3.84 g of Terbutryne 50 WP and 1.07 g of sodium bisulfate monohydrate, the herbicidal composition having a weight ratio of the components to the active ingredient of 1: 0.56;

Formulation C g Merkazine 50 WP;

Formulation D: 3.84 g of merkazine 50 WP and 1.07 g of sodium bisulfate monohydrate, the herbicidal composition having a weight ratio of components to active ingredient of 1: 0.56;

The results observed two months after sowing are given in the table below.

treatments (Compositions) Calculated dose / kg of active ingredient / kg Bag in Gyombori % The experiment number untreated - 72.00 THE 2 7.50 1301/1 B 2 4.37

treatments (Compositions) Dose calculated as 100% active ingredient per kg weed guard % The experiment number untreated - 52.1 C 2 7.63 1302/1 D 2 9.75

Legend:

Terbutryne 50 WP: See Example 12

Merkazine 50 WP: 50% Prometryne (2-Methylthio-4,6bis-isopropylamino-1,3,5-triazine) is a commercially available pesticide, wetting powder.

The following table shows the following.

Although the standard Terbutryne 50 WP (formulation A) significantly reduces weed cover compared to the untreated parcel (by about 86%), the herbicidal formulation of Terbutryne 50 WP and sodium hydrogen sulfate monohydrate of the invention (formulation B) administered at the same dose results in an additional 42% reduction in weed cover compared to the standard (Formulation A), which effect is approximately 36% Terbutryne (100%) compared to the standard (Formulation A). calculated on the active ingredient).

Although the standard Merkazin 50 WP (formulation C) significantly reduces weed cover compared to the untreated parcel (by about 46%), the herbicidal formulation of Merkazin 50 WP and sodium bisulfate monohydrate (formulation D) of the invention using the same dose does not result in a significant change in weed coverage compared to the standard (formulation C), while the above effect is achieved by saving about 36% Merkazine (based on 100% active ingredient) compared to the standard herbicidal composition (formulation D). a.

After the potatoes have reached maturity, we harvested the fruit and weighed it. The yield is shown in the table below.

treatments (Compositions) Expected to be 100% active ingredient dose kg / ha Yield the standard preparation %-in untreated - 54.7% THE 2 100.0% B 2 124.8% untreated - 75.0% C 2 100.0% D 2 160.0%

From the table it can be seen that the two formulations (B and D) of the present invention produce significant yields over the standard formulations A and C. Particularly outstanding is D composition containing Merkazine 50 WP and sodium bisulfate monohydrate in a weight ratio of 1: 0.56. Applying this, even though 33% less Terbutryne contains 50 WP, yields a 60% yield. If we compare the yields with the IV. Example 1 of the small-plot experiments described in (1), carried out one year earlier on different soils under different meteorological conditions, shows that the values are remarkably similar, indicating the reproducibility of the herbicide according to the invention and the agricultural method according to the invention.

Example 14

Center plot experiments

Clay loam or sandy loam soil with organic matter content of 2-3%, on which we cultivated wheat beech and harvested at the end of May, were subjected to agrotechnical preparation according to the silage maize culture:

- stubble dialing,

- 20 cm deep plowing,

- plowing (double disc + toothed).

On 9 x 16 m (144 m ² ) plots, silage maize is sown and sprayed 3 weeks post-emergence with the pesticide (standard) and the combinations of pesticides according to the present invention in the table below. Seeding is carried out using a six row JD seeder, spraying at 800 L / ha / John Deer.

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plots Indication Herbicidal combinations Dose kg / ha U / L (standard) Gesaprim 1 3 E / 2 Gesaprim + Sodium bisulphate monohydrate 2 + 5 E / 3 Gesaprim + sodium bisulfate monohydrate 2 + 10 E / 4 untreated control - E / 5 Gesaprim + potassium hydrogen sulfate 2 + 5 E / 6 Gesaprim + potassium hydrogen sulfate 2 + 10 E / 7 Gesaprim + sodium bisulfite 2 + 5 E / 8 Gesaprim + sodium bisulfite 2 + 10

Gesaprim ^{R is a} commercial pesticide containing Atrazine as active ingredient, i.e. 2-chloro-4-ethylamino-6-isopropylamino-1,3,5-triazine.

The results of weed sampling and plant height measurements for each plot are shown in the following table.

Parcel Indication Average herbivore bag % Average plant height is standard %-in E / l (standard) 2.1 100 E / 2 1.3 95 E / 3 1.0 90 E / 4 (untreated control) 7.3 66.7 E / 5 3.2 80 E / 6 2.4 100 E / 7 1.8 115 E / 8 2.6 110

It can be seen from the table that the herbicidal combinations according to the present invention containing sodium bisulfate monohydrate, using the standard Gesaprim, have a 50-66% better herbicidal activity. Combinations containing potassium bisulfate or sodium bisulfite have the same herbicidal activity as the standard. When the combination containing sodium bisulfite is used, the plant is 10-15% higher than the standard, lower than the other salts, but in each case significantly higher than the untreated control plot.

According to our phenological observations, the herbicidal combinations according to the invention are non-phytotoxic and, moreover, corn is healthier, more vigorous and has a deeper green color throughout the growing season than the standard.

At the end of the growing season, the crop was harvested using an E-280 forage harvester. The average yield of each plot as a percentage of the standard is given in the following table.

Parcel Indication Average yield in% of standard E / l (standard) 100 E / 2 106.9 E / 3 133.3 E / 4 (untreated control) 116.6 E / 5 113.2 E / 6 110.0 E / 7 159.8 E / 8 193.3

The table shows that the average yield of all plots treated with the herbicide combination according to the invention is better than the standard. There is a significant yield increase in the case of sodium bisulfite tartal2 ₀ using the herbicidal combinations.

Claims (5)

Patent claims Claims 1. A two-component herbicidal composition comprising an inorganic salt and a triazine derivative as an active ingredient, wherein the active ingredient is present in an amount of 0.195% by weight. (a) sodium bisulphate or potassium bisulphate or sodium bisulphite or potassium bisulphite; and (b) a triazine derivative of formula (I) wherein: X is a halogen atom, preferably a chlorine atom Represents a C 1 -C ₂ alkylthio group and 35 R 1 and R _{2 represent the} same or different C 1 -C 4 alkyl groups - A mixture of 0.1: 1 to 4: 1, preferably 0.2: 1 to 3: 1, with one or more conventional carriers, preferably kaolin, and / or diluents, preferably water or aqueous acetone, and optionally an emulsifier. preferably mixed with dodecylbenzene sulfonic acid calcium and / or a dispersant, preferably sulfite alkali powder. 2. The herbicidal composition of claim 1, wherein the triazine derivative is 2-chloro-4-ethylamino-6-isopropylamino-1,3,5-triazine (Atrazine). An embodiment of the herbicidal composition according to claim 1, characterized in that the triazine derivative 50 contains 2-ethylamino-4-isopropylamino-6-methylthio-1,3,5-triazine (Ametryne). An embodiment of the herbicidal composition according to claim 1, characterized in that the triazine derivative contains 2,4-diisopropylamino-6-methylthio-1,3,5-triazine (pro55 metryne). 5. The herbicidal composition of claim 1, wherein the triazine derivative is 2-chloro-4,6-diisopropylamino-1,3,5-triazine (Propazine). 6. The herbicidal composition according to claim 1, wherein the triazine derivative comprises 2-tert-butylamino-4-ethylamino-6-methylthio-1,3,5-triazine (Terbutryne). 1 figure