HU203453B - Synergetic herbicide and growth-controlling compositions containing phosphonates - Google Patents

Abstract

A synergistic fungicide and plant growth controlling compsn. contains a 0.5-95wt.% total of carbamoyl-phosphonate, general formula (I) and N-phosphono-methyl-glycine formula (II) or its salts in a (1-9):(9-1) ratio. 5-99.5Wt.% are customary formulating additives. - In the formula: R = 1-4C alkyl, 2-4C alkenyl, (1-4C alkyl)-phenyl gp.; R1 = hydrogen, 1-4C alkyl gp.; R2 = hydrogen, 1-4C alkyl gp.; R1 and R2 combined = 2-7C alkylene gp. which may contain a hetero-atom; Y(+), Y1(+), Y2(+), Y3(+) are hydrogen ions, alkali metal ions or cations of general formula NR3R4R5R6 where R3, R4, R5 and R6 represent hydrogen, 1-4C alkyl, 2-4C alkenyl, (1-4C alkyl)-phenyl gp. and hydroxy-(1-4C alkyl) gps.; R4 and R5 combined: represent 2-7C alkylene gps. which may contain an opt. hetero-atom.

Description

SUMMARY OF THE INVENTION The present invention relates to a synergistic herbicide and plant growth regulator composition comprising an effective amount of a carbamoyl phosphonate and an N-phosphonomethylglycine derivative.

Protecting crop plants from weeds and other vegetation that inhibit crop development is a recurring problem in agriculture. Similarly serious problems are maintaining weeds or shrubs in areas as well as suppressing and influencing the growth of these plants, such as public roads, high-voltage pipeline and pipeline trails, sewer networks, and generally any other area where these vegetations are considered undesirable

It is widely known that in some cases some herbicides are more effective in combination than when applied individually. In the art, such a result is called synergism because the combination results in a potency increase beyond what would be expected from the individual creators' own efficacy.

The present invention is based on the discovery that certain carbamoyl phosphonates and N-phosphonomethylglycine derivatives, already known as plant growth regulators, exhibit synergism when used in combination.

The two groups of compounds that make up the compositions of the present invention are known to affect plant development in different spectra and mechanisms of action.

Carbamoyl phosphonates are described primarily as active ingredients of plant growth regulators in U.S. Patent 3,627,507; 3,846,512; 3,997,544; 3,981,870; 3,929,448; 3,952,074; 3,975,464; 4,018,854; 4,042,650; U.S. Patent Nos. 4,063,923 and 4,191,551; and U.S. Patent Nos. 2,435,437.

More specifically, carbamoyl phosphonates are useful in slowing down the rate of plant growth without destroying them and, as discussed in the aforementioned patents, are particularly useful for suppressing the growth of forest plants such as trees and shrubs. In addition to their plant growth inhibitory properties, they can also be advantageously used to control flowering in orchards, increase yields and influence the color of fruits in a favorable direction, and to increase sugar production in sugar-bearing plants. In addition to the above, they can be used in horticulture to control the growth of ornamental plants such as chrysanthemum, azalea, tulip, rose.

Another class of compounds of the present invention having synergistic activity is the N-phosphonomethylglycine derivative, the preparation of which is protected by numerous patents, such as: 3,799,758; 3,969,398; 3,927,080; U.S. Patent No. 4,237,065, or Hungarian Patent Application No. 184,601.

N-phosphonomethylglycine is known in agriculture as glyphosate, a very potent, broad-spectrum, commercially available herbicide. N-phosphonomethylglycine is preferably used postemigeneously to control the growth of germinating seeds, seedlings, growing and adult monocotyledonous and dicotyledonous vegetation, including ferns, conifers, and hard-to-control rhizome plants.

Both groups of compounds of the present invention, such as carbamoylphosphonates and N-phosphonomethylglycine derivatives, are both disclosed as components of independent herbicidal compositions. Such effective combinations are described in, for example, 79 86 619; 79,866,620; 77 70 027; Japanese Patent No. 79,555,730; and 4,017,296; U. S. Patent No. 3,929,450; German Patent No. 2,638,706.

However, it is not known in the literature to formulate mixtures which contain the active ingredient carbamoylphosphonate derivatives and N-phosphonomethylglycine in combination and advantageously utilize the synergistic effect of these two well known compounds to control the growth of herbaceous and broadleaf plants.

The present invention relates to novel herbicidal and plant growth controlling compositions comprising an effective amount of a carbamoylphosphonate of formula (I) and N-phosphonomethylglycine of formula (II) or salts thereof, in the formulas:

R is C 1 -C 4 alkyl or C 2 -C 4 alkenyl;

R ¹ and R ² is hydrogen,

Y is an ammonium ion optionally substituted with C 1 -C 4 alkyl, * Y is an alkali metal ion, or

Cation NHR ³ R ⁴ R ^{5 in} which

R ³ , R ^{4 and} R ⁵ are C 1 -C 4 alkyl, hydroxy (C 1 -C 5) alkyl or

R ³ and R ⁴ together with the nitrogen atom form a morpholino, Y ² and Y ³ is hydrogen.

Preferred examples of carbamoyl phosphonates for use in the synergistic compositions of the present invention include:

1. ammonium ethylcarbamoyl phosphonates

2. ammonium allyl carbamoyl phosphonate

3. n-Butylammonium ethylcarbamoylphosphonate

These and other carbamoylphosphonates useful as active ingredients in the compositions of the present invention may be prepared by the methods described in the aforementioned U.S. Patents.

Another preferred component for use in the compositions of the invention is N-phosphonomethylglycine.

The term "synergism" or "synergistic" as used in the present invention means that the combination of herbicidal active ingredients has the effect of providing a synergistic effect.

EN 203 453 Β, which is superior to the herbicidal effect due to the addition of the individual effect of each ingredient.

As used herein, the term "herbicidal active ingredient" refers to compounds, including agriculturally acceptable salts, that regulate or modify the development of plants as an active ingredient in the composition.

As used herein, the term "effective amount of a pesticide" refers to an amount of a compound or combination of compounds that is capable of producing a regulatory or modifying effect.

Regulation or modification denotes development other than natural development. These include extermination, retardation, loss of growth or dwarf growth and the like. Plant designation refers to all vegetation from seed to mature plant.

In the synergistic compositions of the invention, the weight ratio of carbamoyl phosphonate, N-phosphonomethylglycine derivatives (1-4) :( 5-1), preferably (14) :( 3-1).

The amount of use of the pure active ingredient mixture, i.e. the amount of formulation without inert additives used in the formulation, depends on the composition of the plant, the stage of development of plants, the climatic conditions of application, the technique of application and last but not least. The compositions of the present invention achieve good results at 2.05.0 a.i. kg / ha for material application. The preferred amount is usually 3.0 a.i. kg / ha, provided that a lower or higher application rate may be applied, taking into account the characteristics of the weeds to be controlled.

The carbamoyl phosphonate and N-phosphonomethylglycine composition is preferably used postemergently. The plants have an effect on the leaves and other parts of the ground and can therefore be used effectively over a long period of vegetation. It is active against a broad spectrum of herbaceous plants from early spring to late autumn, while perennial deciduous plants can be applied just before the fall of fall foliage.

The synaesthetic composition according to the invention can be advantageously applied in all agricultural areas where so-called "glazing" is used. the aim is to influence or control the growth of undesirable vegetation.

Our herbicidal composition can also be advantageously used for weed control in places where agricultural crop production is not practiced but where vegetation destruction is warranted. Examples of such areas are airports, industrial areas, railway lines, road signs, tracks of various pipelines, river borders, irrigation and other waterways, shrubs, fallows or uncultivated areas. Our composition is particularly advantageous in agricultural areas which are difficult to eradicate with plants (Rubus cesius, Agropyron repens, Convulvulus arvensis) or other trees, shrubs which hinder agricultural production. In addition, the compositions can be used with good results in deforestation for killing seedlings and sprouts. The phytotoxic properties of the composition containing the carbamoyl phosphonate and N-phosphonomethylglycine are useful not only for controlling weeds, but also for defoliation, dessication of certain crop plants (sunflower, flax, hemp, rapeseed).

In addition to their herbicidal properties, carbamoyl phosphonate- and N-phosphonomethylglycine-containing compositions can be used as plant growth inhibitors, which include, inter alia, slowing down the growth of plants, delaying the bud blight, prolonging the winter dormancy period. for use as a plant growth retardant, preferably applied to the foliage of plants, in a fraction of the dose providing herbicidal activity, preferably 0.1-1.0 ai. kg / ha.

The formulations of the present invention may be in ready-to-use forms: powders, granules, pastes, emulsions, suspensions or solutions. These formulations may contain conventional carriers and excipients for agricultural herbicidal compositions.

Solid carriers include mineral or synthetic materials such as kaolin, diatomaceous earth, talc, attapulgite, diatomaceous earth, alumina, silicic acid and various silicates.

Liquid carriers include various boiling petroleum fractions (e.g. gas oil or kerosene), animal or vegetable oils, aromatic, aliphatic or alicyclic hydrocarbons (e.g. benzene, toluene, xylene, cyclohexane, tetrahydronaphthalene, etc.) or highly polar solvents (e.g. , dimethylsulfoxide, N-methylpyrrolidone, water, etc.).

Surfactants (emulsifying, dispersing, wetting and foaming agents, anti-aggregating and anti-seizing agents) can be used both as ionic and nonionic materials.

Among the ionic surfactants, the salts of saturated or unsaturated carboxylic acids, sulfonates of aliphatic, aromatic or aliphatic hydrocarbons, sulfonates of alkyl, aryl, and aralkyl alcohols, sulfones of alkyl, aryl, and aralkylcarboxylic acids, esters and ethers , sulphonates of phenols, cresols or naphthalene condensation products, sulphated vegetable or animal oils, alkyl, aryl or aralkyl phosphate esters, and polyglycol ethers of ethylene oxide with fatty alcohols or alkyl phenols sulfonates and phosphonates.

Examples of nonionic surfactants are: condensation products of ethylene oxide with fatty alcohols, alkylaryl polyglycol ether, polymers of ethylene oxide and / or propylene oxide and their derivatives, alkylcelluloses.

Foam inhibitors include low molecular weight ethylene / propylene oxide condensates, aliphatic alcohols, special silicone oils and fatty acid amides.

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Alkali earth soaps, sulpho-succinic ester salts, and natural and synthetic water-soluble or water-swellable macromolecules may be used as tackifiers.

Preferably, the antifreeze is one or more alcohols having from 1 to 4 carbon atoms.

In addition, food colorants, disintegrating and / or vomiting agents may be added to the formulation.

The compositions of the present invention may be mixed with other pesticides, adjuvants and mineral salts prepared according to the following examples.

Example 1

To a solution of 100 g of ammonium ethylcarbamoyl phosphonate in 300 ml of water was added 200 g of N-phosphonomethylglycine followed by 105 g of dimethylaminoethanol under cooling and stirring. To the resulting homogeneous solution, a solution of a mixture of 21 g of ethoxylated fatty amine and 7 g of octaethylene glycol mononyl phenyl ether in 100 ml of 50 ° C water, followed by 200 g of 87% glycerol and 1 g of crystallized copper sulphate in 50 ml of water solution is added while stirring continuously. The resulting blue solution was made up to 1500 g with water.

Example 2

To a solution of 150 g of ammonium allyl carbamoylphosphonate in 400 ml of water were added 100 g of N-phosphonomethylglycine, 59.7 g of N-methylmorpholine, 21 g of ethoxylated fatty amine, 7 g of octaethylene glycol monononyl, respectively. Phenyl ether, 1 g of crystalline copper sulfate and 200 g of ethylene glycol were added as described in Example 1 and the final weight was made up to 1200 g with water.

Example 3 To a solution of g dimethylammonium ethyl N, N-dimethylcarbamoylphosphonate in 100 ml water, 10 g N-phosphonomethylglycine, 6.2 g diethanolamine, 10 g octaethylene glycol, respectively -mononylphenyl ether, 6 g of dioctyl sulfosuccinate and 1000 g of isopropanol are added and the final weight is made up to 5000 g with water.

Example 4

To a solution of 100 g of benzyltrimethylammonium butyl-N-methylcarbamoylphosphonate in 400 ml of water, 100 g of N-phosphonomethylglycine, 41 g of 80% potassium hydroxide 10 g of octaethylene glycol -mononylphenyl ether, 1 g of crystalline copper sulfate and 200 g of 1,2-propylene glycol are added and the final weight is made up to 1200 g with water.

Example 5

To a solution of 150 g of ammonium ethylcarbamoyl phosphonate in 400 ml of water were added 60 g of N-phosphonomethylglycine and 30 g of isopropylamine, 5 g of sodium lauryl sulphate, 5 g of polyethylene glycol having an average molecular weight of 1500. and after addition of 1 g of crystalline copper sulphate, the final weight is made up to 1200 g with water.

Example 6 To a mixture of 42 parts by weight of ammonium ethylcarbamoylphosphonate and 42 parts by weight of N-phosphonomethylglycine monosodium salt, 1.8 parts by weight of octaethylene glycolmononylphenyl 5 a melt prepared from ethoxylated fatty amine and 5 parts by weight of hot water.

The adhesive paste is dried at 40 ° C in an oven over phosphorus pentoxide and then ground.

The resulting powder can be used to form a spray of the desired concentration.

Example 7

Each was prepared as in Example 6, using ammonium allyl carbamoyl phosphonate as the active ingredient.

Example 8 To a homogeneous mixture of part by weight of ammonium ethylcarbamoyl phosphonate, 42 parts by weight of N-phosphonomethylglycine monosodium salt and 20 parts by weight of wheat starch, the melt of the excipient of Example 6 is added, followed by briquettes or tablets are compressed to form the appropriate concentration of the juice quickly.

Example 9: parts by weight of n-butylammonium ethylcarbamoylphosphonate, 12 parts by weight of N-phosphonomethylglycine, 13.8 parts by weight of diethylaminoethanol, 1.3 parts by weight of sodium dioctylsulfosuccinate, 1 part by weight A homogeneous ointment is prepared using conventional and well-known techniques using octaethylene glycol mononylonyl phenyl ether, 5 parts water and 10 parts pharmaceutical paraffin oil. The product can be diluted with water to form an emulsion spray of any concentration.

Example 10

Each was prepared as described in Example 1, using 100 g of ammonium allyl carbamoyl phosphonate as the active ingredient.

Example 11

All of the procedures described in Example 1 were followed using 100 g of n-butylammonium ethylcarbamoyl phosphonate as the active ingredient.

The biological effects of the compositions of the present invention containing the carbamoyl phosphonate and the N-phosphonomethylglycine derivative are exemplified by the following field experiments, but are not limiting.

Example 12

The composition of Example 2 was 3.15 a.i. kg / ha was used to control harmful creeping effects and worthless seedlings in wild areas after harvesting. The experimental area is 1 hectare per treatment, with hooks 50-180 cm, oak and locust seedlings

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30-40 cm, while the weeds were 20-30 cm.

The formulations were applied in September, using a Haflinger spray gun, at a pressure of 500 liters / hectare, in three replicates. The temperature of the treatment was 22 'C, 55% relative humidity and windy weather. Absorption, translocation was not affected by rainfall or early frost.

For comparison, the untreated and the individual components of the combination product alone were treated

At the start of the experiment, weed cover was as follows:

Total Weed guard 75% short name Robina pseudo-acacia 80% ROBPS Quercus robur 5% QUERO Rubus caesius 5% RUBCE Galium verum 3% GALIVE Urtica dioica 7% URTIDI

Herbicide and phytotoxic effects were evaluated on the 21st day after treatment, and after six and twelve months, using the EWRC scale known to those skilled in the art, where 1 grade is excellent, meaning 100% herbicide, and 9 grades total inactivity, 0% indicates.

The synergistic effect of the combination formulation was calculated using the Limpel formula (Proc. NEWCC., 16, 48-58, 1962).

The expected percentage growth inhibitory effect of a mixture of these two fixed dose herbicides

X is the percentage growth inhibitory effect of the specified dose of the Hibicide Component A

Y is the growth inhibitory effect of a specific dose of the herbicide component B

If the observed effect is greater than the expected value, the combination synergizes, if the observed value is the same as the expected value, then the effect is additive.

As shown in Table I, our combination product provided excellent herbicidal activity against both soft and woody plants.

The acacia and oak bands, which are mass-driven in the felling cut, did not evolve in spring due to the treatment with the composition according to the invention. The phytotoxic effect, which proved to be lasting, was not detectable after a year. Unlike areas that have been sprayed separately for each component. Although phytotoxic symptoms appeared in different spectra on both N-phosphonomethylglycine and ammonium ethyl carbamoylphosphonate treated boards, the felling was not re-used from a forestry perspective. The plants shown in Table I had their herbicidal activity removed after six months, and in the areas used as a positive control, germination was restarted.

Example 13

The synergistic herbicide combinations of the present invention can also be successfully used to control aquatic plant associations, as illustrated in the following experimental example.

The area adjacent to the drainage drainage channel in the agricultural area was sprayed in accordance with Section II. Table I. The depth of the leaking water was 50 cm and the dominant vegetation was rushes, reeds, willows and elms.

In June, the herbicide was applied using a Tee-fet Haflinger Sprayer 11006 with a water volume of 600 liters / hectare and a pressure of 1.9 bar. At the time of treatment, the temperature was 22 ° C, 60% relative humidity, and the wind speed was 2 m / sec. No precipitation was observed within 48 hours of treatment

The herbicidal activity was evaluated as described in the previous biological example. Areas that were not treated with the active ingredient or sprayed separately with each herbicide component served as controls.

The experiments were evaluated at 4 and 12 months after application.

The herbicidal activity of our combination products is shown in Table II. The following plants are indicated by the abbreviations used:

Typha laxmanni TYPLA

Typha latifolum ΤΥΡΤΊ

Pfragmites communis FHRCO

Salix fragaria SALFR

Sambucus etulus SAMET

The N-phosphonomethylglycine component produced toxic symptoms at a dose of 2 µg / ha in leaves of both herbaceous and woody plants. However, this herbicide effect has been transient, especially for reeds and rushes. In the spring the vegetation regrowth and after one year there was hardly any difference compared to the untreated areas.

Carbamoyl phosphonate derivatives are in themselves unsuitable for the control of reeds, rushes, but have suppressed the growth of willows and elderberries, delaying the emergence of spring buds. However, no permanent herbicidal effect was observed at 1.25 kg / ha against these two perennial woody plants.

II. The carbamoylphosphonate and N-phosphonomethylglycine combinations shown in Table 1-13 destroyed 90-95% of the drainage ditch vegetation. Their strong phytotoxic effect was most pronounced in the absence of spring sprouting of vegetation.

Example 14

Hereafter, the efficacy of the combination compositions of the present invention will be demonstrated in a 12-year-old apple orchard heavily contaminated with ash-seed.

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The composition of the orchard undergrowth in the pre-treatment period was as follows

Total Weed guard 80% Rubus caesius 20% RUBCE Cynodon dactilon 60% Cyndi Convulvulus arvensis 5% COVAR Erigon canadensis 3% ERICA Officina of Taraxacum 12% TAROF

The experimental areas are 0.5 ha per treatment.

The perennials prepared as described in Examples 6 and 7 were delivered postemigeneously in early August, similar to those described in the previous biological examples.

The ΙΠ. The data presented in Table 1b demonstrates that Rubus caesius, which contains about 5% to about 20% of the apple plantation undergrowth and which is resistant to N- (phosphonomethyl) glycine: active ingredient, can be effectively destroyed by our combination preparations.

The beneficial synergistic properties of the combinations according to the invention were found not only in woody vegetation but also as ΙΠ. Table EWRC also shows numerical values, even for perennial herbaceous plants. Consequently, the compositions of the present invention can be successfully used in orchards as a broad spectrum total hybrids.

Table I

Production example number dose a.i. kg / ha ROBPS vegetation to be destroyed QUERO RUBCE GALTVE EWRC rating numbers URTIDI Example 2 3.15 THE 5 5 6 1 5 B 1 1 1 1 7 C 1 1 1 1 6 ammonium ethyl 1.5 THE 8 9 9 9 9 amide B 6 6 8 9 9 phosphonate C 9 8 9 9 9 N- (phosphonomethyl) - 1.65 THE 6 4 9 1 5 glycine morpholine salt B 8 7 9 1 7 C 8 9 9 1 8

Review times:

A: 21 days after treatment; B: 6 months after treatment; C: 12 months after treatment

Π. spreadsheet

manufacturing example number a dose .i. kg / ha TYPLA TYPTI vegetation to be destroyed PHRCO SALFR EWRC rating numbers SAMET Example 1 3.75 THE 2 3 2 3 1 B 1 2 1 1 1 Example 10 3.75 THE 3 3 2 2 1 B 2 3 1 1 1 Example 11 3.75 THE 3 3 2 3 2 B 2 2 1 2 1 ammonium ethyl 0.95 THE 9 9 9 8 7 carbamoyl phosphonate B 9 9 9 8 9 ammonium allyl 0.95 THE 9 9 9 9 9 carbamoyl phosphonate B 9 9 9 9 9 n-butylammonium ethyl 0.95 THE 9 9 9 8 9 carbamoyl phosphonate B 9 9 9 8 9 N- (phosphonomethyl) -glycine 2.80 THE 5 5 3 6 4 dimethyl aminoethanol salt B 6 9 7 7 5

Review times:

A: 4 months after treatment; B: 12 months after treatment

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ΠΙ. spreadsheet

Production dose Example number of vegetation to be destroyed a.i. kg / ha RUBCE CYNDA ERICA COVAR TAROF

EWRC rating numbers

Example 6 3.4 THE B 7 1 5 1 1 3 6 1 2 5 Example 7 3.4 THE 8 5 2 6 2 B 1 2 2 1 6 ammonium ethyl 1.9 THE 9 9 9 9 9 carbamoyl phosphonate B 9 9 9 9 9 ammonium allyl 1.9 THE 9 9 9 9 9 carbamoyl phosphonate B 9 9 9 9 9 N- (phosphonomethyl) - 13 THE 7 5 2 6 2 -mononátrium salt B 9 6 6 9 8

Review times:

A: 21 days after treatment; B: 8 months after treatment

ARC. Table 1: Observed and expected percentages of herbicide. The observed herbicidal activity was based on the EWRC scale XK, while the expected effect was obtained using the Limper formula E-X + Y-.

manufacturing dose vegetation to be destroyed example number a.i. kg / ha ROBS QUERO RUBCE GALIVE URTIDI megfigy.várt observed with. Expected observation. Expected observation. expected observed with. expected

Example 2 3.15 THE 82 79 82 90 70 0 100 100 82 82 B 100 79 100 86.5 100 30 100 100 55 55 C 100 30 100 30 100 0 100 100 70 30 ammonium ethyl 13 THE 30 - 0 - 0 - 0 - 0 - amide B 70 - 70 - 30 - 0 - 0 - phosphonate C 0 - 30 - 0 - 0 - 0 - N-phosphono-methyl 1.65 THE 70 - 90 - 0 - 100 - 82 - glycine-morpholino B 30 - 55 - 0 - 100 - 55 - -salt C 30 - 0 - 0 - 100 - 30 -

Evaluation times: 21 days after treatment; B = 6 months after treatment; 12 months after C treatment

Table V: Observed and Expected Percentages of Weed Control. The observed herbicidal activity was based on the EWRC scale, while the expected effect was obtained using Limper's formula E-X + Y- - Evaluation times: 4 months after treatment with A; 8 months after B treatment;

manufacturing dose vegetation to be destroyed example number a.i. kg / ha TYPLA TYPTI PHRCO SALFR SAMET megfigy.várt observed with. Expected observation. Expected observation. expected megfigy.várt

l.példa 3.75 THE 98 82 95 82 98 95 95 79 100 95.5 B 100 70 98 0 100 55 100 683 100 82 Example 10 3.75 THE 95 82 95 82 98 95 98 70 100 90 B 98 70 95 0 100 55 100 55 100 82 Example 11 3.75 THE 95 82 95 82 98 55 95 79 98 90 B 98 70 98 0 100 55 98 683 100 82 ammonium ethyl 0.95 THE 0 - 0 - 0 - 30 - 55 - phosphonate B 0 - 0 - 0 - 30 - 0 - ammonium allyl 0.95 THE 0 - 0 - 0 - 0 - 0 - carbamoyl phosphonate B 0 - 0 - 0 - 0 - 0 -

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Production dose example number a.i. kg / ha vegetation to be destroyed TYPLA megfigy.várt TYPTI Observed expected PHRCO Observed expected SALFR Observed. expected SAMET megfigy.várt n-butylammonium ethyl-0.95 THE 0 - 0 0 30 0 - carbamoyl phosphonate B 0 - 0 0 30 0 N-phosphonomethylglycine 2.80 THE 82 - 82 95 0 70 90 dimethyl aminoethanol salt B 70 - 0 55 55 82

Assessment times: A = 4 months after treatment; B = 12 months after treatment

VI. Table 1: Observed and expected percentages of herbicide. The observed herbicidal activity was based on the EWRC scale vy, while the expected effect was obtained using the Limper formula E-X + Y- -.

manufacturing dose vegetation to be destroyed example number a.i. kg / ha RUBCE CYNDA ERICA COVAR TAROF megfigy.várt observed with. Expected observation. Expected observation. expected observed with. expected

Example 6 3.4 THE B 55 100 55 55 82 100 82 70 100 95 98 70 70 100 70 0 98 82 98 30 Example 7 3.4 THE 30 55 82 82 98 98 70 70 98 98 B 100 0 98 70 98 70 100 0 70 30 ammonium ethyl 1.9 THE 0 - 0 - 0 - 0 - 0 - carbamoyl phosphonate B 0 - 0 - 0 - 0 - 0 - ammonium allyl 1.9 THE 0 - 0 - 0 - 0 - 0 - carbamoyl phosphonate B 0 - 0 0 - 0 - 0 - N-phosphono-methyl 1.5 THE 55 - 82 - 98 - 70 - 98 - -mononátrium salt B 0 70 - 70 - 0 - 30 -

Evaluation dates: 21 days after treatment; 8 months after B treatment;

Claims (1)

Patent Claim Point CLAIMS 1. A synergistic herbicide and a plant growth regulator, characterized in that the active ingredient is 5-95% by weight of a carbamoylphosphonate derivative of the formula (I) in which R is a (1-4C) alkyl or (2-4C) alkenyl, R ¹ and R ² is hydrogen, Y is an ammonium ion optionally substituted with C 1 -C 4 alkyl and a basic N-phosphonomethylglycine salt of formula II wherein Y is an alkali metal or A cation of the formula NHR ³ R ⁴ R ⁵ wherein R ³ , R ⁴ and R ⁵ are C 1 -C 4 alkyl, hydroxy (C 1 -C 5) alkyl, or R ³ and R ⁴ together with the nitrogen atom form a morpholino, ² Y, ³ Y is hydrogen 1: 4-5: 1 weight ratio of carriers conventionally used in pesticide industry, ionic and nonionic surfactants, optionally an antifoam or tackifying agents and colorants next to.