Herbicidal composition

Abstract

The present invention relates to a herbicidal composition, containing glufosinate and / or glufosinate-P, and a foliar fertilizer. The foliar fertilizer is one or more of potassium hydrogen phthalate, boron, ammonium sulfate, and urea. In the present invention, all the components have a good synergistic effect, can be effectively used for prevention and control of perennial tolerant plants, mature weeds, newly germinated weeds, etc. under a low-temperature condition, effectively improve the prevention and control range of glufosinate and / or glufosinate-P, and remarkably prolong the lasting period. Additionally, the composition has a simple and feasible preparation method, an easily available processing device, low costs, and significant market promotion value and economic benefits.

Description

A herbicidal composition Technical Field

[0001] The invention belongs to the field of agricultural chemical applications, and particularly relates to a weed control composition. Background Art

[0002] The chemical formula of glufosinate is C5H 12 NO4P, with a formula weight of 198.1574 and its chemical name: 2-amino-4-[hydroxy(methyl)phosphonyl]butyrate; (RS)-2-amino-4-(hydroxymethoxyphosphonyl)butyrate. It is readily soluble in water but insoluble in organic solvents, photostable, and has a melting point of 210°C. It is a highly effective, low-toxic, non-selective contact phosphate herbicide. Glufosinate-ammonium (L-form) has twice the herbicidal activity of the racemic DL-form glufosinate mixture. Glufosinate-ammonium and / or glufosinate-ammonium inhibit glutamine synthetase, leading to disrupted nitrogen metabolism in plants and ammonium ion accumulation and toxicity. This in turn affects chloroplast synthesis, hindering photosynthesis and ultimately causing plant death. Glufosinate and / or glufosinate concentrate are low in toxicity, relatively safe, readily degrade in soil, and safe for crops. They offer a broad spectrum of weed control, high activity, and rapid kill rates, effectively preventing or rapidly killing over 100 annual and perennial weed species. Glufosinate and / or glufosinate concentrate primarily target weeds by contact, preventing migration and remaining safe for subsequent crops. Glufosinate and / or glufosinate concentrate also have excellent water solubility and a stable structure, making them easy to process and blend.

[0003] However, due to the characteristics and mechanism of action of glufosinate and / or refined glufosinate, they are suitable for use at temperatures above 20°C. However, when used in low-temperature environments below 15°C, there is a problem of reduced efficacy. There are few studies and reports on how to improve the efficacy of glufosinate and / or refined glufosinate at low temperatures.

[0004] Summary of the Invention

[0005] The object of the present invention is to provide a herbicidal composition capable of improving the efficacy of glufosinate-ammonium and / or refined glufosinate-ammonium at low temperatures.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] A first aspect of the present invention provides a herbicidal composition, which includes glufosinate and / or refined glufosinate, and foliar fertilizer; the foliar fertilizer is one or more of potassium hydrogen phthalate, boron, ammonium sulfate, and urea.

[0008] Foliar fertilizer is a fertilizer applied directly to the leaves for the purpose of leaf absorption, delivering nutrients needed by crops. Plant leaves have two layers of epidermis, composed of epidermal cells. The outer surface of the epidermal cells is covered with a cuticle and wax, which protect the mesophyll cells beneath the epidermal tissue from adverse external conditions and allow them to perform photosynthesis and respiration. The leaf surface also contains numerous tiny pores that function as gas exchange points. Research has shown that the cuticle is composed of a polymer of long-chain fatty acids with hydroxyl and carboxyl groups. The molecular gaps and the hydrophilic hydroxyl and carboxyl groups on the molecules of this polymer allow aqueous solutions to penetrate the leaves. Naturally, the pores on the leaf surface provide a more convenient channel for foliar fertilizer to enter the leaves.

[0009] The inventors unexpectedly discovered that the combination of glufosinate and / or refined glufosinate with specific foliar fertilizers can complement each other and greatly improve the efficacy of glufosinate and / or refined glufosinate under low temperature conditions. The specific mechanism may be that foliar fertilizer is a type of fertilizer in which nutrients are applied to the surface of crop leaves and exert their functions through absorption by the leaves. With foliar fertilization, various nutrients can be quickly absorbed by the crop leaves and directly enter the plant body from the leaves, participating in the crop's metabolism. Since nutrients enter the crop body directly from the leaves, the absorption rate is fast, which can greatly increase the nutrients in the crop body in a short period of time, thereby increasing the accumulation of ammonium ions in the plant body under low temperature conditions, thereby improving the efficacy of glufosinate and / or refined glufosinate at low temperatures.

[0010] According to some specific embodiments, the foliar fertilizer includes at least boron, for example, the foliar fertilizer is boron, or boron and potassium hydrogen phthalate, or boron and ammonium sulfate, or boron and urea, or boron, potassium hydrogen phthalate and ammonium sulfate, or boron, potassium hydrogen phthalate and urea, or boron, ammonium sulfate and urea, or potassium hydrogen phthalate, boron, ammonium sulfate and urea.

[0011] According to some specific embodiments, the foliar fertilizer is two or more of potassium hydrogen phthalate, boron, ammonium sulfate, and urea.

[0012] Furthermore, the foliar fertilizer includes at least one of boron and urea.

[0013] Furthermore, the foliar fertilizer includes boron and urea.

[0014] According to some specific and preferred embodiments, the foliar fertilizer includes potassium hydrogen phthalate, boron and urea.

[0015] Furthermore, the mass ratio of the potassium hydrogen phthalate, the boron and the urea is 25-35:1:25-35, preferably 27-33:1:27-33, more preferably 28-32:1:28-32, and even more preferably 29-31:1:29-31.

[0016] According to some specific embodiments, the mass ratio of the glufosinate and / or refined glufosinate to the foliar fertilizer is 1 to 400:1; for example, 1:1, 5:1, 10:1, 15:1, 20:1, 25:1, 30:1, 35:1, 40:1, 45:1, 50:1, 55:1, 60:1, 65:1, 70:1, 75:1, 80:1, 85:1, 90:1, 95:1, 100:1, 105:1, 110:1, 115:1, 120:1, 125:1, 130:1, 135:1, 140:1, 1, 2, 3, 4, 5, 6, 7, 8, 9, or 100:1, preferably 1 to 200:1.

[0017] According to some specific embodiments, the mass ratio of the glufosinate to the foliar fertilizer is 2 to 400:1, preferably 3 to 200:1.

[0018] According to some specific embodiments, the mass ratio of the refined glufosinate to the foliar fertilizer is 1 to 200:1, preferably 1 to 100:1.

[0019] According to some specific embodiments, the foliar fertilizer includes boron, and the mass ratio of the glufosinate and / or refined glufosinate to the boron is 50 to 400:1, for example, 50:1, 55:1, 60:1, 65:1, 70:1, 75:1, 80:1, 85:1, 90:1, 95:1, 100:1, 105:1, 110:1, 115:1, 120:1, 125:1, 130:1, 135:1, 140:1, 145:1, 150:1, 155:1, 16 1, 200:1, 210:1, 220:1, 230:1, 240:1, 250:1, 260:1, 270:1, 280:1, 290:1, 300:1, 310:1, 320:1, 330:1, 340:1, 350:1, 360:1, 370:1, 380:1, 390:1 or 400:1, etc.; preferably 80-250:1.

[0020] According to some specific embodiments, the foliar fertilizer includes boron, and the mass ratio of the glufosinate to the boron is 100 to 400:1, preferably 150 to 250:1.

[0021] According to some specific embodiments, the foliar fertilizer includes boron, and the mass ratio of the refined glufosinate to the boron is 50 to 200:1, preferably 80 to 150:1.

[0022] According to some specific embodiments, the herbicidal composition further comprises a pesticide-acceptable adjuvant.

[0023] Furthermore, in terms of mass percentage, the glufosinate ammonium and / or refined glufosinate ammonium is 0.1 to 80%, and the foliar fertilizer delivered is 0.001% to 50%.

[0024] Furthermore, the herbicidal composition is in the form of an oil suspension, a soluble liquid or a soluble granule.

[0025] Furthermore, the pesticide-acceptable adjuvant includes one or more of a surfactant, a binder, a thickener, a filler, and a solvent.

[0026] The surfactant is selected from one or more combinations of alkyl glycoside additives, tallow amine additives, sodium dodecylbenzenesulfonate, calcium dodecylbenzenesulfonate, sodium dodecyl sulfate, sodium dodecylbenzene sulfate, lignin sulfonate, polyoxyethylene ether sulfonate, alkylnaphthalene sulfonate formaldehyde condensate, polycarboxylate, alkylphenol polyoxyethylene ether, fatty alcohol polyoxyethylene ether, castor oil polyoxyethylene ether, fatty alcohol polyoxyethylene ether sulfate, alkylphenol polyoxyethylene ether sulfate, phenethylphenol polyoxyethylene ether, alkylphenol polyoxyethylene ether phosphate, and phenethylphenol polyoxyethylene ether phosphate.

[0027] The binder is selected from one or more combinations of soluble starch, dextrin, glucose, carboxymethyl cellulose, and lignin sulfonate.

[0028] The thickener is selected from one or more combinations of xanthan gum, magnesium aluminum silicate, white carbon black, hydroxymethyl cellulose, hydroxyethyl cellulose, polyvinyl alcohol, and bentonite.

[0029] The filler is selected from one or more combinations of lactose, glucose, sodium pyrophosphate, trisodium phosphate, urea, corn starch, bentonite, diatomaceous earth, kaolin, white carbon black, pearl clay, and light calcium carbonate.

[0030] The solvent is selected from one or more combinations of methyl oleate, vegetable oil, soybean oil, corn oil, rapeseed oil, castor oil, mineral oil, cottonseed oil, palm oil, and water.

[0031] According to some specific embodiments, when the herbicidal composition is an oil suspension, it includes the following ingredients, calculated by mass percentage: 10% to 30% of glufosinate ammonium and / or refined glufosinate ammonium, 0.001% to 30% of foliar fertilizer, 2% to 20% of surfactant, 0.1% to 2% of thickener, and the solvent is supplemented to 100%.

[0032] Furthermore, when the herbicidal composition is an oil suspension, it includes the following ingredients, calculated by mass percentage: 10% to 30% of glufosinate ammonium and / or refined glufosinate ammonium, 0.05% to 20% of foliar fertilizer, 10% to 20% of surfactant, 0.1% to 2% of thickener, and the solvent is supplemented to 100%.

[0033] Furthermore, when the herbicidal composition is an oil suspension, it includes the following ingredients, calculated by mass percentage: 10% to 30% of glufosinate ammonium and / or refined glufosinate ammonium, 0.1% to 15% of foliar fertilizer, 15% to 20% of surfactant, 1% to 2% of thickener, and the solvent is supplemented to 100%.

[0034] According to these embodiments, the surfactant is fatty alcohol polyoxyethylene ether and alkylbenzene sulfonate in a mass ratio of 2 to 5:1.

[0035] According to these embodiments, the thickener is bentonite.

[0036] According to these embodiments, the solvent is methyl oleate.

[0037] According to these embodiments, for solid foliar fertilizer, the preparation method of the oil suspension concentrate is: adding glufosinate and / or refined glufosinate, a thickener, a surfactant and foliar fertilizer to a solvent, stirring evenly at a speed of 150 to 200 rpm, and grinding with a sand mill to obtain the oil suspension concentrate.

[0038] For foliar fertilizers containing both solid and liquid components, the preparation method of the oil suspension concentrate is as follows: glufosinate and / or refined glufosinate, a thickener, part of the surfactant, and the solid foliar fertilizer are added to part of the solvent, stirred evenly at a speed of 150 to 200 revolutions per minute, and then ground with a sand mill; then, the liquid foliar fertilizer, the remaining surfactant, and the remaining solvent are evenly dissolved, and then evenly mixed with the ground system to prepare the oil suspension concentrate.

[0039] According to some specific embodiments, when the herbicidal composition is a soluble liquid, it includes the following ingredients, calculated by mass percentage: 0.1% to 60% of glufosinate ammonium and / or refined glufosinate ammonium, 0.001% to 50% of foliar fertilizer, 2% to 20% of surfactant, and the solvent is supplemented to 100%.

[0040] Furthermore, when the herbicidal composition is a soluble liquid, it includes the following ingredients by mass percentage: 10% to 30% of glufosinate ammonium and / or refined glufosinate ammonium, 0.01% to 30% of foliar fertilizer, 2% to 20% of surfactant, and the solvent is supplemented to 100%.

[0041] Furthermore, when the herbicidal composition is a soluble liquid, it includes the following ingredients by mass percentage: 10% to 30% of glufosinate ammonium and / or refined glufosinate ammonium, 0.05% to 20% of foliar fertilizer, 10% to 20% of surfactant, and the solvent is supplemented to 100%.

[0042] Furthermore, when the herbicidal composition is a soluble liquid, it includes the following ingredients by mass percentage: 10% to 30% of glufosinate ammonium and / or refined glufosinate ammonium, 0.05% to 15% of foliar fertilizer, 15% to 20% of surfactant, and the solvent is supplemented to 100%.

[0043] According to these embodiments, the surfactant is C12-14 alkyl glycoside and fatty alcohol polyoxyethylene ether sulfate in a mass ratio of 2 to 5:1.

[0044] According to these embodiments, the solvent is water.

[0045] According to these embodiments, the preparation method of the soluble liquid is:

[0046] Glufosinate ammonium and / or refined glufosinate ammonium, foliar fertilizer, and surfactant are added to a solvent, and stirred and dissolved uniformly at a speed of 150 to 200 revolutions per minute to prepare the soluble liquid.

[0047] According to some specific embodiments, when the herbicidal composition is a soluble granule, it includes the following ingredients, calculated by mass percentage: 10% to 80% of glufosinate ammonium and / or refined glufosinate ammonium, 0.001% to 50% of foliar fertilizer, 2% to 20% of surfactant, 2% to 10% of binder, and filler is supplemented to 100%.

[0048] Furthermore, when the herbicidal composition is a soluble granule, it includes the following ingredients, calculated by mass percentage: 25% to 80% of glufosinate ammonium and / or refined glufosinate ammonium, 0.01% to 30% of foliar fertilizer, 2% to 20% of surfactant, 2% to 10% of binder, and filler to 100%.

[0049] Furthermore, when the herbicidal composition is a soluble granule, it includes the following ingredients, calculated by mass percentage: 25% to 60% of glufosinate ammonium and / or refined glufosinate ammonium, 0.05% to 15% of foliar fertilizer, 15% to 20% of surfactant, 2% to 8% of binder, and filler supplemented to 100%.

[0050] According to these embodiments, the surfactant is a sodium sulfonate salt and a polycarboxylate salt in a mass ratio of 2 to 5:1.

[0051] According to these embodiments, the binder is soluble starch.

[0052] According to these embodiments, the filler is diatomaceous earth.

[0053] According to these embodiments, the preparation method of the soluble granules is:

[0054] Glufosinate ammonium and / or refined glufosinate ammonium, foliar fertilizer, a binder and a surfactant are mixed evenly, ultrafinely pulverized by a jet mill, stirred evenly at a speed of 100 to 150 revolutions per minute, water is added to knead and granulate, and dried at 50° C. to obtain the soluble granules.

[0055] The second aspect of the present invention provides a herbicidal composition, which is an oil suspension concentrate. The herbicidal composition comprises, by mass percentage, 10% to 30% of glufosinate and / or refined glufosinate, 0.001% to 30% of foliar fertilizer, and the remainder of an adjuvant acceptable to pesticides. The foliar fertilizer is one or more of potassium hydrogen phthalate, boron, ammonium sulfate, and urea.

[0056] The further definition of the foliar fertilizer in the herbicidal composition is the same as that of the herbicidal composition provided in the first aspect above, and will not be repeated here.

[0057] According to some specific embodiments, the pesticide-acceptable adjuvant includes 2% to 20% of a surfactant, 0.1% to 2% of a thickener, and the balance a solvent.

[0058] Furthermore, the surfactant is fatty alcohol polyoxyethylene ether and alkylbenzene sulfonate, the thickener is bentonite, and the solvent is methyl oleate.

[0059] The third aspect of the present invention provides a herbicidal composition, which is a water-soluble preparation. The herbicidal composition comprises, by mass percentage, 0.1% to 80% of glufosinate and / or refined glufosinate, 0.001% to 50% of foliar fertilizer, and the remainder of an agricultural chemically acceptable adjuvant, wherein the foliar fertilizer is one or more of potassium hydrogen phthalate, boron, ammonium sulfate, and urea.

[0060] The further definition of the foliar fertilizer in the herbicidal composition is the same as that of the herbicidal composition provided in the first aspect above, and will not be repeated here.

[0061] According to some specific embodiments, the water-soluble preparation is a soluble liquid, and the pesticide-acceptable adjuvant includes 2% to 20% of a surfactant and the balance a solvent.

[0062] Furthermore, the surfactant is alkyl glycoside and fatty alcohol polyoxyethylene ether sulfate, and the solvent is water.

[0063] According to some specific embodiments, the water-soluble preparation is a soluble granule, and the pesticide-acceptable adjuvant includes 2% to 20% of a surfactant, 2% to 10% of a binder, and the balance is a filler.

[0064] Furthermore, the surfactant is naphthalenesulfonate formaldehyde condensate and polycarboxylate, the binder is soluble starch, and the filler is diatomaceous earth.

[0065] According to some embodiments, compared with using refined glufosinate as the active ingredient, in each dosage form, the amount of glufosinate added is 1.5 to 3 times, preferably about 2 times, of refined glufosinate.

[0066] The glufosinate mentioned above is the technical glufosinate, and the refined glufosinate is the refined technical glufosinate.

[0067] The composition of glufosinate and / or refined glufosinate with a foliar fertilizer of the present invention can greatly improve the efficacy of glufosinate and / or refined glufosinate under low temperature conditions. The present invention mixes glufosinate and / or refined glufosinate with a foliar fertilizer within a certain range, and with the cooperation of other components of the formulation, fully exerts the synergistic herbicidal effect of the active ingredient, and its efficacy is significantly better than that of glufosinate and / or refined glufosinate alone. At the same time, the composition of glufosinate and / or refined glufosinate with a foliar fertilizer is simple and easy to use, has stable product quality, has obvious market value, and is suitable for large-scale promotion and application.

[0068] The glufosinate and / or refined glufosinate and foliar fertilizer composition of the present invention is used to prevent and control the growth of unwanted vegetation, including weed control in non-arable fields, weeding in forests, weeding in orchards, weeding between crop rows in arable fields, and stubble control in fields before sowing or transplanting.

[0069] When used, the dosage of the active ingredient of the composition of glufosinate and / or refined glufosinate and foliar fertilizer is 225 to 1800 g / hectare, wherein the dosage of the active ingredient is calculated based on the dosage of glufosinate and / or refined glufosinate.

[0070] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0071] The components of the present invention exhibit excellent synergistic effects, making them effective for controlling perennial tolerant plants, older weeds, and newly germinated weeds under low-temperature conditions. They effectively expand the control range of glufosinate-ammonium and / or refined glufosinate-ammonium and significantly extend the duration of effectiveness. Furthermore, the composition is simple and easy to prepare, with readily available processing equipment and low cost, offering significant market value and economic benefits. DETAILED DESCRIPTION

[0072] All features disclosed in this specification, or all steps in the disclosed methods or processes, can be combined in any manner except mutually exclusive features or steps.

[0073] The technical solutions of the present invention are further described below with reference to specific embodiments. However, the present invention should not be limited to these embodiments. Unless otherwise specified, all features may be replaced by other equivalent or similar features. Unless otherwise specified, each feature is merely an example of a series of equivalent or similar features. The contents described below are all by mass, and "%" refers to mass percentage.

[0074] Glufosinate and / or refined glufosinate TC were purchased from Zhejiang Yongnong Chemical Co., Ltd.; potassium hydrogen phthalate was purchased from Wuhan Kemik Biopharmaceutical Technology Co., Ltd.; boron was purchased from liquid boron from Henan Aimuwo Agricultural Technology Co., Ltd.; ammonium sulfate was purchased from Changzhou Lanya New Materials Technology Co., Ltd.; urea was purchased from Suzhou Quanding Chemical Technology Co., Ltd.; fatty alcohol polyoxyethylene ether (AEO-9), C12-14 alkyl glucoside (APG), and fatty alcohol polyoxyethylene ether sulfate (AES) were purchased from Hai'an Petrochemical Plant, Jiangsu Province; alkylbenzene sulfonate (500#) was purchased from Hai'an Petrochemical Plant, Jiangsu Province; polycarboxylate (SD-816) was purchased from Shanghai Shida Polymer Materials Co., Ltd.; sodium sulfonate (SD-661) was purchased from Shanghai Shida Polymer Materials Co., Ltd.; diatomaceous earth was purchased from Shanghai Yansheng Industrial Co., Ltd.; bentonite was purchased from Guangxi Runxing New Materials Co., Ltd.; and soluble starch was purchased from Changhong Cellulose Factory, Wen'an County.

[0075] Example 1

[0076] A 20% glufosinate-ammonium + 9% potassium hydrogen phthalate oil suspension concentrate was prepared, and the raw material formula is shown in Table 1.

[0077] Table 1

[0078] Add glufosinate, potassium hydrogen phthalate, bentonite, 500# and AEO-9 to methyl oleate, stir at 180 rpm until the original drug is wetted, and sand grind with a sand mill. After the sand grinding is qualified, a 20% glufosinate + 9% potassium hydrogen phthalate oil suspension concentrate is prepared.

[0079] Example 2

[0080] Prepare 20% glufosinate-ammonium + 0.05% boron oil suspension concentrate, the raw material formula is shown in Table 2.

[0081] Table 2

[0082] Add glufosinate, bentonite and 500# to part of methyl oleate, stir at 180 rpm until the original drug is wetted, and sand grind with a sand mill. After passing the sand grinding, a glufosinate oil suspension concentrate is obtained. Boron, AEO-9 and the remaining methyl oleate are evenly dissolved, added to the glufosinate oil suspension concentrate, and stirred evenly to obtain a 20% glufosinate + 0.05% boron oil suspension concentrate.

[0083] Example 3

[0084] Prepare 20% glufosinate-ammonium + 0.1% boron oil suspension concentrate, the raw material formula is shown in Table 3.

[0085] Table 3

[0086] Add glufosinate, bentonite and 500# to part of methyl oleate, stir at 180 rpm until the original drug is wetted, and sand grind with a sand mill. After passing the sand grinding, a glufosinate oil suspension concentrate is obtained. Boron, AEO-9 and the remaining methyl oleate are evenly dissolved, added to the glufosinate oil suspension concentrate, and stirred evenly to obtain a 20% glufosinate + 0.1% boron oil suspension concentrate.

[0087] Example 4

[0088] Prepare 20% glufosinate-ammonium + 0.2% boron oil suspension concentrate, the raw material formula is shown in Table 4.

[0089] Table 4

[0090] Add glufosinate, bentonite and 500# to part of methyl oleate, stir at 180 rpm until the original drug is wetted, and sand grind with a sand mill. After passing the sand grinding, a glufosinate oil suspension concentrate is obtained. Boron, AEO-9 and the remaining methyl oleate are evenly dissolved, added to the glufosinate oil suspension concentrate, and stirred evenly to obtain a 20% glufosinate + 0.2% boron oil suspension concentrate.

[0091] Example 5

[0092] Prepare 20% glufosinate-ammonium + 9% ammonium sulfate oil suspension concentrate, the raw material formula is shown in Table 5.

[0093] Table 5

[0094] Add glufosinate, ammonium sulfate, bentonite, 500# and AEO-9 to methyl oleate, stir at 180 rpm until the original drug is wetted, and sand grind with a sand mill. After the sand grinding is qualified, a 20% glufosinate + 9% ammonium sulfate oil suspension concentrate is prepared.

[0095] Example 6

[0096] Prepare 20% glufosinate + 4.5% potassium hydrogen phthalate + 0.1% boron oil suspension concentrate, the raw material formula is shown in Table 6.

[0097] Table 6

[0098] Add glufosinate, potassium hydrogen phthalate, bentonite and 500# to part of methyl oleate, stir at 180 rpm until the original drug is wetted, and sand grind with a sand mill. After passing the sand grinding, a glufosinate suspension concentrate is obtained. Dissolve boron, AEO-9 and the remaining methyl oleate evenly, add them to the glufosinate oil suspension concentrate, and stir evenly to prepare a 20% glufosinate + 4.5% potassium hydrogen phthalate + 0.1% boron oil suspension concentrate.

[0099] Example 7

[0100] Prepare 20% glufosinate + 4.5% ammonium sulfate + 0.1% boron oil suspension concentrate, the raw material formula is shown in Table 7.

[0101] Table 7

[0102] Add glufosinate, bentonite, ammonium sulfate and 500# to part of methyl oleate, stir at 180 rpm until the original drug is wetted, and sand grind with a sand mill. After passing the sand grinding, a glufosinate oil suspension concentrate is obtained. Boron, AEO-9 and the remaining methyl oleate are evenly dissolved, added to the glufosinate oil suspension concentrate, and stirred evenly to obtain a 20% glufosinate + 4.5% ammonium sulfate + 0.1% boron oil suspension concentrate.

[0103] Example 8

[0104] Prepare 20% glufosinate + 4.5% urea + 0.1% boron oil suspension concentrate, the raw material formula is shown in Table 8.

[0105] Table 8

[0106] Add glufosinate, bentonite, urea and 500# to part of methyl oleate, stir at 180 rpm until the original drug is wetted, and sand grind with a sand mill to obtain a glufosinate oil suspension concentrate if the sand grinding is qualified. Dissolve boron, AEO-9 and the remaining methyl oleate evenly, add them to the glufosinate oil suspension concentrate, stir evenly, and prepare a 20% glufosinate + 4.5% urea + 0.1% boron oil suspension concentrate.

[0107] Example 9

[0108] Prepare 20% glufosinate + 3% urea + 0.1% boron + 3% potassium hydrogen phthalate oil suspension, the raw material formula is shown in Table 9.

[0109] Table 9

[0110] Add glufosinate, bentonite, urea, potassium hydrogen phthalate and 500# to part of methyl oleate, stir at 180 rpm until the original drug is wetted, and sand grind with a sand grinder to obtain a glufosinate oil suspension concentrate if the sand grinding is qualified. Dissolve boron, AEO-9 and the remaining methyl oleate evenly, add them to the glufosinate oil suspension concentrate, and stir evenly to obtain 20% glufosinate + 3% urea + 0.1% boron + 3% potassium hydrogen phthalate oil suspension concentrate.

[0111] Example 10

[0112] Prepare 20% glufosinate + 3% ammonium sulfate + 0.1% boron + 3% potassium hydrogen phthalate oil suspension, the raw material formula is shown in Table 10.

[0113] Table 10

[0114] Add glufosinate, bentonite, ammonium sulfate, potassium hydrogen phthalate and 500# to part of methyl oleate, stir at 180 rpm until the original drug is wetted, and sand grind with a sand grinder. After passing the sand grinding, a glufosinate oil suspension concentrate is obtained. Boron, AEO-9 and the remaining methyl oleate are evenly dissolved, added to the glufosinate oil suspension concentrate, and stirred evenly to obtain 20% glufosinate + 3% ammonium sulfate + 0.1% boron + 3% potassium hydrogen phthalate oil suspension concentrate.

[0115] Example 11

[0116] Prepare 10% refined glufosinate ammonium + 0.1% boron oil suspension concentrate, the raw material formula is shown in Table 11.

[0117] Table 11

[0118] Add refined glufosinate ammonium, bentonite and 500# to part of methyl oleate, stir at 180 rpm until the original drug is wetted, and sand grind with a sand mill. After passing the sand grinding, the refined glufosinate ammonium oil suspension concentrate is obtained. Boron, AEO-9 and the remaining methyl oleate are evenly dissolved, added to the glufosinate ammonium oil suspension concentrate, and stirred evenly to prepare a 10% refined glufosinate ammonium + 0.1% boron oil suspension concentrate.

[0119] Example 12

[0120] Prepare 10% refined glufosinate + 3% urea + 0.1% boron + 3% potassium hydrogen phthalate oil suspension, the raw material formula is shown in Table 12.

[0121] Table 12

[0122] Add glufosinate, bentonite, urea, potassium hydrogen phthalate and 500# to part of methyl oleate, stir at 180 rpm until the original drug is wetted, and sand grind with a sand mill to obtain a glufosinate oil suspension concentrate if the sand grinding is qualified. Dissolve boron, AEO-9 and the remaining methyl oleate evenly, add them to the glufosinate oil suspension concentrate, and stir evenly to obtain 10% refined glufosinate + 3% urea + 0.1% boron + 3% potassium hydrogen phthalate oil suspension concentrate.

[0123] Comparative Example 1

[0124] Prepare 20% glufosinate-ammonium + 2% amino acid oil suspension concentrate, the raw material formula is shown in Table 13.

[0125] Table 13

[0126] Add glufosinate, bentonite, amino acid, 500# and AEO-9 to methyl oleate, stir at 180 rpm until the original drug is wetted, and sand grind with a sand mill. After the sand grinding is qualified, a 20% glufosinate + 2% amino acid oil suspension concentrate is obtained.

[0127] Comparative Example 2

[0128] Prepare 20% glufosinate-ammonium + 1.5% superphosphate oil suspension concentrate, the raw material formula is shown in Table 14.

[0129] Table 14

[0130] Add glufosinate, bentonite, superphosphate, 500# and AEO-9 to methyl oleate, stir at 180 rpm until the original drug is wetted, and sand grind with a sand grinder. After the sand grinding is qualified, a 20% glufosinate + 1.5% superphosphate oil suspension concentrate is prepared.

[0131] Comparative Example 3

[0132] Prepare 20% glufosinate + 2% nucleotide oil suspension concentrate, the raw material formula is shown in Table 15.

[0133] Table 15

[0134] Add glufosinate, bentonite, nucleotide, 500# and AEO-9 to methyl oleate, stir at 180 rpm until the original drug is wetted, and sand grind with a sand mill. After the sand grinding is qualified, a 20% glufosinate + 2% nucleotide oil suspension is prepared.

[0135] Comparative Example 4

[0136] Prepare 20% glufosinate-ammonium oil suspension concentrate, the raw material formula is shown in Table 16.

[0137] Table 16

[0138] Add glufosinate ammonium, bentonite, 500# and AEO-9 to methyl oleate, stir at 180 rpm until the original drug is wetted, and sand grind with a sand mill. After the sand grinding is qualified, a 20% glufosinate ammonium oil suspension concentrate is prepared.

[0139] Example 13

[0140] Efficacy test of the oil suspension concentrates of Examples 1 to 12 and Comparative Examples 1 to 4 for controlling weeds in vineyard fields

[0141] Usage: Add 30 liters of water per acre and spray evenly in each plot.

[0142] Application time: When weeds are in the early and middle stages of field growth, spray the stems and leaves once.

[0143] Investigation methods and efficacy calculation:

[0144] The survey subjects are annual and perennial grass and broad-leaved weeds, and the weed control efficacy is evaluated 14 days and 30 days after application.

[0145] The purpose of this trial is to confirm the actual control effectiveness of glufosinate and / or refined glufosinate combined with foliar fertilizer on weeds between vineyard rows. This study also provides a comprehensive evaluation of glufosinate and / or refined glufosinate combined with foliar fertilizer, providing a theoretical basis for further application. The trial was conducted in accordance with GB / T 17980-2000, Guidelines for Field Efficacy Tests of Pesticides.

[0146] 1 Materials and Methods

[0147] 1.1 Test agents

[0148] Control agents: glufosinate ammonium and / or a combination of glufosinate ammonium and foliar fertilizers, see Examples 1 to 12 and Comparative Examples 1 to 4 for details.

[0149] 1.2 Test subjects

[0150] The main weeds between the rows of the grape fields were barnyard grass, foxtail grass, crabgrass, and purslane, while the main perennial weed was Erigeron spp. At the time of application, weed coverage in each treatment plot was 80%, with plant heights ranging from 15 to 30 cm.

[0151] 1.3 Experimental design

[0152] The experiment included 16 treatments, each with a blank control (CK). Each plot was 66 square meters in size, with three replicates, for a total of 51 plots. Plots for the different treatments were arranged using completely randomized blocks. The design treatments are shown in Table 17.

[0153] Table 17

[0154] 1.4 Test environment conditions

[0155] The experimental site is Daxin Town, Zhangjiagang City, Jiangsu Province, and the experimental field is a 5-year-old vineyard with flat terrain and sandy loam soil.

[0156] Test weather: The weather on the day of application was cloudy, with a maximum temperature of 14°C and a minimum temperature of 4°C, and no wind. There was no rainfall for 3 days after application.

[0157] 1.5 Test method

[0158] The experiment was conducted on the afternoon of March 17, 2022. A backpack electric sprayer was used for spraying. A protective cover was installed to carry out targeted spraying on weeds between the grape rows, trying to avoid spraying the liquid on the grapes. 30L / mu of water was used for each treatment.

[0159] 2 Investigation methods and efficacy evaluation methods

[0160] The control effect of each treatment was investigated 14 and 30 days after application. A three-point sampling method was used, with 0.5 square meters of weeds sampled at each point. The weed species and number were recorded. The effects on the grapes were also visually observed.

[0161] The survey results are shown in Table 18 below.

[0162] Table 18

[0163] As shown in Table 18, compared with the comparative example and the control agent, under low temperature conditions, the control effect of the glufosinate / essence glufosinate combined with foliar fertilizer in the examples on annual and perennial weeds was significantly improved.

[0164] Comparing Examples 2-4, it can be seen that different boron dosages have different synergistic effects on glufosinate-ammonium, and the synergistic effect will be reduced when a certain dosage is exceeded.

[0165] In Examples 9 and 12, glufosinate / glufosinate-ammonium was compounded with boron, urea and potassium hydrogen phthalate, and the synergy was most obvious.

[0166] Comparative Examples 1-3 are combinations of glufosinate ammonium and other foliar fertilizers, but the synergistic effect of glufosinate ammonium is not obvious, and in fact, it has a certain inhibitory effect on the efficacy of glufosinate ammonium.

[0167] The grapes in the above treatment groups grew normally, indicating that the agents in the examples and comparative examples were safe for grapes.

[0168] Example 14

[0169] A soluble liquid of 20% glufosinate-ammonium + 9% potassium hydrogen phthalate was prepared. The raw material formula is shown in Table 19.

[0170] Table 19

[0171] Glufosinate ammonium, potassium hydrogen phthalate and a surfactant were added to water, the temperature was raised to 50° C., and the mixture was stirred at 180 rpm until uniformly dissolved to prepare a 20% glufosinate ammonium + 9% potassium hydrogen phthalate soluble liquid.

[0172] Example 15

[0173] Prepare 20% glufosinate + 0.05% boron soluble liquid, the raw material formula is shown in Table 20.

[0174] Table 20

[0175] Glufosinate ammonium, boron and surfactant were added to water, heated to 50° C., and stirred at 180 rpm until uniformly dissolved to prepare a 20% glufosinate ammonium + 0.05% boron soluble liquid.

[0176] Example 16

[0177] Prepare 20% glufosinate + 0.1% boron soluble liquid, the raw material formula is shown in Table 21.

[0178] Table 21

[0179] Glufosinate ammonium, boron and surfactant were added to water, heated to 50° C., and stirred at 180 rpm until uniformly dissolved to prepare a 20% glufosinate ammonium + 0.1% boron soluble liquid.

[0180] Example 17

[0181] Prepare 20% glufosinate + 0.2% boron soluble liquid, the raw material formula is shown in Table 22.

[0182] Table 22

[0183] Glufosinate ammonium, boron and surfactant were added to water, heated to 50°C, and stirred at 180 rpm until uniformly dissolved to prepare a 20% glufosinate ammonium + 0.2% boron soluble liquid.

[0184] Example 18

[0185] Prepare a 20% glufosinate + 9% ammonium sulfate soluble liquid, the raw material formula is shown in Table 23.

[0186] Table 23

[0187] Glufosinate ammonium, ammonium sulfate and a surfactant were added to water, the temperature was raised to 50° C., and the mixture was stirred at 180 rpm until uniformly dissolved to prepare a 20% glufosinate ammonium + 9% ammonium sulfate soluble liquid.

[0188] Example 19

[0189] Prepare 20% glufosinate + 4.5% potassium hydrogen phthalate + 0.1% boron soluble liquid, the raw material formula is shown in Table 24.

[0190] Table 24

[0191] Glufosinate, potassium hydrogen phthalate, boron and surfactant were added to water, heated to 50°C, and stirred at 180 rpm until uniformly dissolved to prepare a 20% glufosinate + 4.5% potassium hydrogen phthalate + 0.1% boron soluble liquid.

[0192] Example 20

[0193] Prepare 20% glufosinate + 4.5% ammonium sulfate + 0.1% boron soluble liquid, the raw material formula is shown in Table 25.

[0194] Table 25

[0195] Glufosinate, ammonium sulfate, boron and surfactant were added to water, heated to 50°C, and stirred at 180 rpm until uniformly dissolved to prepare a 20% glufosinate + 4.5% ammonium sulfate + 0.1% boron soluble liquid.

[0196] Example 21

[0197] Prepare 20% glufosinate + 4.5% urea + 0.1% boron soluble liquid, the raw material formula is shown in Table 26.

[0198] Table 26

[0199] Glufosinate ammonium, urea, boron and surfactant were added to water, heated to 50°C, and stirred at 180 rpm until uniformly dissolved to prepare a 20% glufosinate ammonium + 4.5% urea + 0.1% boron soluble liquid.

[0200] Example 22

[0201] A soluble liquid of 20% glufosinate + 3% urea + 0.1% boron + 3% potassium hydrogen phthalate was prepared. The raw material formula is shown in Table 27.

[0202] Table 27

[0203] Glufosinate ammonium, urea, boron, potassium hydrogen phthalate and a surfactant were added to water, the temperature was raised to 50° C., and the mixture was stirred at 180 rpm until uniformly dissolved to prepare a soluble liquid of 20% glufosinate ammonium + 3% urea + 0.1% boron + 3% potassium hydrogen phthalate.

[0204] Example 23

[0205] Prepare a soluble liquid of 20% glufosinate + 3% ammonium sulfate + 0.1% boron + 3% potassium hydrogen phthalate. The raw material formula is shown in Table 28.

[0206] Table 28

[0207] Glufosinate, ammonium sulfate, boron, potassium hydrogen phthalate and a surfactant were added to water, the temperature was raised to 50° C., and the mixture was stirred at 180 rpm until uniformly dissolved to prepare a soluble liquid of 20% glufosinate + 3% ammonium sulfate + 0.1% boron + 3% potassium hydrogen phthalate.

[0208] Example 24

[0209] Prepare 10% refined glufosinate + 0.1% boron soluble liquid, the raw material formula is shown in Table 29.

[0210] Table 29

[0211] Add refined glufosinate ammonium, boron and surfactant into water, heat to 50° C., and stir at 180 rpm until uniformly dissolved to prepare a 10% refined glufosinate ammonium + 0.1% boron soluble liquid.

[0212] Example 25

[0213] Prepare a soluble liquid of 10% glufosinate + 3% urea + 0.1% boron + 3% potassium hydrogen phthalate. The raw material formula is shown in Table 30.

[0214] Table 30

[0215] Add refined glufosinate ammonium, urea, boron, potassium hydrogen phthalate and a surfactant into water, heat to 50°C, and stir at 180 rpm until uniformly dissolved to prepare a soluble liquid of 10% refined glufosinate ammonium + 3% urea + 0.1% boron + 3% potassium hydrogen phthalate.

[0216] Comparative Example 5

[0217] Prepare 20% glufosinate + 2% amino acid soluble liquid, the raw material formula is shown in Table 31.

[0218] Table 31

[0219] Add glufosinate ammonium, amino acid and surfactant to water, heat to 50°C, stir at 180 rpm until dissolved evenly, and stir evenly to prepare a 20% glufosinate ammonium + 2% amino acid soluble liquid.

[0220] Comparative Example 6

[0221] Prepare 20% glufosinate + 1.5% superphosphate soluble liquid, the raw material formula is shown in Table 32.

[0222] Table 32

[0223] Add glufosinate ammonium, superphosphate and surfactant into water, heat to 50°C, stir at 180 rpm until dissolved evenly, and stir evenly to prepare a 20% glufosinate ammonium + 1.5% superphosphate soluble liquid.

[0224] Comparative Example 7

[0225] Prepare 20% glufosinate + 2% nucleotide soluble liquid, the raw material formula is shown in Table 33.

[0226] Table 33

[0227] Add glufosinate ammonium, superphosphate and surfactant into water, heat to 50°C, stir at 180 rpm until dissolved evenly, and stir evenly to prepare a 20% glufosinate ammonium + 2% nucleotide soluble liquid.

[0228] Comparative Example 8

[0229] A 20% glufosinate-ammonium soluble liquid was prepared, and the raw material formula is shown in Table 34.

[0230] Table 34

[0231] Add glufosinate ammonium and a surfactant into water, heat to 50° C., stir at 180 rpm until uniformly dissolved, and stir evenly to prepare a 20% glufosinate ammonium soluble liquid.

[0232] Example 26

[0233] Efficacy test of the soluble liquids of Examples 14 to 25 and Comparative Examples 4 to 7 for controlling weeds in vineyard fields

[0234] Usage: Add 30 liters of water per acre and spray evenly in each plot.

[0235] Application time: When weeds are in the early and middle stages of field growth, spray the stems and leaves once.

[0236] Investigation methods and efficacy calculation:

[0237] The survey subjects are annual and perennial grass and broad-leaved weeds, and the weed control efficacy is evaluated 14 days and 30 days after application.

[0238] The purpose of this trial is to confirm the actual control effectiveness of glufosinate and / or refined glufosinate combined with foliar fertilizer on weeds between vineyard rows. This study also provides a comprehensive evaluation of glufosinate and / or refined glufosinate combined with foliar fertilizer, providing a theoretical basis for further application. The trial was conducted in accordance with GB / T 17980-2000, Guidelines for Field Efficacy Tests of Pesticides.

[0239] 1 Materials and Methods

[0240] 1.1 Test agents

[0241] Control agents: glufosinate-ammonium and / or a combination of glufosinate-ammonium and foliar fertilizers, see Examples 14 to 25 and Comparative Examples 5 to 8 for details.

[0242] 1.2 Test subjects

[0243] The main weeds between the rows of the grape fields were barnyard grass, foxtail grass, crabgrass, and purslane, while the main perennial weed was Erigeron spp. At the time of application, weed coverage in each treatment plot was 80%, with plant heights ranging from 15 to 30 cm.

[0244] 1.3 Experimental design

[0245] The experiment included 16 treatments, each with a blank control (CK). Each plot was 66 square meters in size, with three replicates, for a total of 39 plots. The plots for the different treatments were arranged using completely randomized blocks. The design treatments are shown in Table 35.

[0246] Table 35

[0247] 1.4 Test environment conditions

[0248] The experimental site is Daxin Town, Zhangjiagang City, Jiangsu Province, and the experimental field is a 5-year-old vineyard with flat terrain and sandy loam soil.

[0249] Test weather: The weather on the day of application was cloudy, with a maximum temperature of 13°C and a minimum temperature of 5°C, and no wind. There was no rainfall for 3 days after application.

[0250] 1.5 Test method

[0251] The experiment was conducted on the afternoon of March 18, 2022. A backpack electric sprayer was used for spraying. A protective cover was installed to carry out targeted spraying on weeds between the grape rows, trying to avoid spraying the liquid on the grapes. 30L / mu of water was used for each treatment.

[0252] 2 Investigation methods and efficacy evaluation methods

[0253] The control effect of each treatment was investigated 14 and 30 days after application. A three-point sampling method was used, with 0.5 square meters of weeds sampled at each point. The weed species and number were recorded. The effects on the grapes were also visually observed.

[0254] The survey results are shown in Table 36 below.

[0255] Table 36

[0256] As can be seen from Table 36, compared with the comparative example, under low temperature conditions, the control effect of the glufosinate-ammonium and / or refined glufosinate-ammonium and foliar fertilizer compound formulations of the examples on annual and perennial weeds was significantly improved.

[0257] Comparative Examples 15-17 show that different boron dosages have different synergistic effects on glufosinate-ammonium, and the synergistic effect will be reduced when a certain dosage is exceeded.

[0258] In Examples 22 and 25, glufosinate / glufosinate-ammonium was compounded with boron, urea and potassium hydrogen phthalate, and the synergy was most obvious.

[0259] Further comparison shows that the efficacy of soluble liquid is slightly weaker than that of oil suspension, but the cost of soluble liquid is more economical than that of oil suspension.

[0260] The grapes in the above treatment groups grew normally, which shows that the above agents are safe for grapes.

[0261] Example 27

[0262] Prepare 50% glufosinate + 9% potassium hydrogen phthalate soluble granules, the raw material formula is shown in Table 37.

[0263] Table 37

[0264] Glufosinate ammonium, potassium hydrogen phthalate, soluble starch, surfactant and diatomaceous earth are mixed evenly, ultrafinely ground by a jet mill, added with water and kneaded in a kneader, and then extruded into granules in an extrusion granulator, and dried to obtain 50% glufosinate ammonium + 9% potassium hydrogen phthalate soluble granules.

[0265] Example 28

[0266] Prepare 50% glufosinate + 0.05% boron soluble granules, the raw material formula is shown in Table 38.

[0267] Table 38

[0268] Glufosinate ammonium, boron, soluble starch, surfactant and diatomaceous earth are mixed evenly, ultrafinely crushed by a jet mill, added with water and kneaded in a kneader, then extruded into granules in an extrusion granulator, and dried to obtain 50% glufosinate ammonium + 0.05% boron soluble granules.

[0269] Example 29

[0270] Prepare 50% glufosinate + 0.1% boron soluble granules, the raw material formula is shown in Table 39.

[0271] Table 39

[0272] Glufosinate ammonium, boron, soluble starch, surfactant and diatomaceous earth are mixed evenly, ultrafinely crushed by a jet mill, added with water and kneaded in a kneader, and then extruded into granules in an extrusion granulator, and dried to obtain 50% glufosinate ammonium + 0.1% boron soluble granules.

[0273] Example 30

[0274] Prepare 50% glufosinate + 0.2% boron soluble granules, the raw material formula is shown in Table 40.

[0275] Table 40

[0276] Glufosinate ammonium, boron, soluble starch, surfactant and diatomaceous earth are mixed evenly, ultrafinely crushed by a jet mill, added with water and kneaded in a kneader, and then extruded into granules in an extrusion granulator, and dried to obtain 50% glufosinate ammonium + 0.2% boron soluble granules.

[0277] Example 31

[0278] Prepare 50% glufosinate + 9% ammonium sulfate soluble granules, the raw material formula is shown in Table 41.

[0279] Table 41

[0280] Glufosinate ammonium, ammonium sulfate, soluble starch, surfactant and diatomaceous earth are mixed evenly, ultrafinely crushed by a jet mill, added with water and kneaded in a kneader, and then extruded into granules in an extrusion granulator, and dried to obtain 50% glufosinate ammonium + 9% ammonium sulfate soluble granules.

[0281] Example 32

[0282] Prepare 50% glufosinate + 4.5% potassium hydrogen phthalate + 0.1% boron soluble granules, the raw material formula of which is shown in Table 42.

[0283] Table 42

[0284] Glufosinate ammonium, potassium hydrogen phthalate, boron, soluble starch, surfactant and diatomaceous earth are mixed evenly, ultrafinely ground by a jet mill, added with water and kneaded in a kneader, and then extruded into granules in an extrusion granulator, and dried to obtain 50% glufosinate ammonium + 4.5% potassium hydrogen phthalate + 0.1% boron soluble granules.

[0285] Example 33

[0286] Prepare 50% glufosinate + 4.5% ammonium sulfate + 0.1% boron soluble granules, the raw material formula is shown in Table 43.

[0287] Table 43

[0288] Glufosinate, ammonium sulfate, boron, soluble starch, surfactant and diatomaceous earth are mixed evenly, ultrafinely ground by a jet mill, added with water and kneaded in a kneader, and then extruded into granules in an extrusion granulator, and dried to obtain 50% glufosinate + 4.5% ammonium sulfate + 0.1% boron soluble granules.

[0289] Example 34

[0290] Prepare 50% glufosinate + 4.5% urea + 0.1% boron soluble granules, the raw material formula is shown in Table 44.

[0291] Table 44

[0292] Glufosinate ammonium, urea, boron, soluble starch, surfactant and diatomaceous earth are mixed evenly, ultrafinely crushed by a jet mill, added with water and kneaded in a kneader, then extruded into granules in an extrusion granulator, and dried to obtain 50% glufosinate ammonium + 4.5% urea + 0.1% boron soluble granules.

[0293] Example 35

[0294] Prepare 50% glufosinate + 3% urea + 0.1% boron + 3% potassium hydrogen phthalate soluble granules, the raw material formula is shown in Table 45.

[0295] Table 45

[0296] Glufosinate ammonium, urea, boron, potassium hydrogen phthalate, soluble starch, surfactant and diatomaceous earth are uniformly mixed, ultrafinely ground by a jet mill, water is added and the mixture is kneaded in a kneader, and then extruded into granules in an extrusion granulator, and dried to obtain 50% glufosinate ammonium + 3% urea + 3% boron + 3% potassium hydrogen phthalate soluble granules.

[0297] Example 36

[0298] Prepare 50% glufosinate + 3% ammonium sulfate + 0.1% boron + 3% potassium hydrogen phthalate soluble granules, the raw material formula is shown in Table 46.

[0299] Table 46

[0300] Glufosinate, ammonium sulfate, boron, potassium hydrogen phthalate, soluble starch, surfactant and diatomaceous earth are uniformly mixed, ultrafinely pulverized by a jet mill, water is added and the mixture is kneaded in a kneader, and then extruded into granules in an extrusion granulator, and dried to obtain 50% glufosinate + 3% ammonium sulfate + 0.1% boron + 3% potassium hydrogen phthalate soluble granules.

[0301] Example 37

[0302] Prepare 25% refined glufosinate + 0.1% boron soluble granules, the raw material formula of which is shown in Table 47.

[0303] Table 47

[0304] The refined glufosinate ammonium, boron, soluble starch, surfactant and diatomaceous earth are mixed evenly, ultrafinely crushed by a jet mill, added with water and kneaded in a kneader, and then extruded into granules in an extrusion granulator, and dried to obtain 25% refined glufosinate ammonium + 0.1% boron soluble granules.

[0305] Example 38

[0306] Prepare 25% refined glufosinate + 3% urea + 0.1% boron + 3% potassium hydrogen phthalate soluble granules, the raw material formula is shown in Table 48.

[0307] Table 48

[0308] Refined glufosinate ammonium, urea, boron, potassium hydrogen phthalate, soluble starch, surfactant and diatomaceous earth are uniformly mixed, ultrafinely ground by a jet mill, water is added and the mixture is kneaded in a kneader, and then the mixture is extruded into granules in an extrusion granulator, and dried to obtain soluble granules containing 25% refined glufosinate ammonium + 3% urea + 3% boron + 3% potassium hydrogen phthalate.

[0309] Comparative Example 9

[0310] Prepare 50% glufosinate + 2% amino acid soluble granules, the raw material formula is shown in Table 49.

[0311] Table 49

[0312] Glufosinate ammonium, amino acid, soluble starch, surfactant and diatomaceous earth are mixed evenly, ultrafinely crushed by a jet mill, added with water and kneaded in a kneader, and then extruded into granules in an extrusion granulator, and dried to obtain 50% glufosinate ammonium + 2% amino acid soluble granules.

[0313] Comparative Example 10

[0314] Prepare 50% glufosinate + 1.5% superphosphate soluble granules, the raw material formula is shown in Table 50.

[0315] Table 50

[0316] Glufosinate ammonium, superphosphate, soluble starch, surfactant and diatomaceous earth are mixed evenly, ultrafinely crushed by a jet mill, added with water and kneaded in a kneader, and then extruded into granules in an extrusion granulator, and dried to obtain 50% glufosinate ammonium + 1.5% superphosphate soluble granules.

[0317] Comparative Example 11

[0318] Prepare 50% glufosinate + 2% nucleotide soluble granules, the raw material formula is shown in Table 51.

[0319] Table 51

[0320] Glufosinate ammonium, nucleotides, soluble starch, surfactant and diatomaceous earth are mixed evenly, ultrafinely crushed by a jet mill, added with water and kneaded in a kneader, and then extruded into granules in an extrusion granulator, and dried to obtain 50% glufosinate ammonium + 2% nucleotide soluble granules.

[0321] Comparative Example 12

[0322] Prepare 50% glufosinate-ammonium soluble granules, the raw material formula of which is shown in Table 52.

[0323] Table 52

[0324] Glufosinate ammonium, soluble starch, surfactant and diatomaceous earth are mixed evenly, ultrafinely crushed by a jet mill, added with water and kneaded in a kneader, and then extruded into granules in an extrusion granulator, and dried to obtain 50% glufosinate ammonium soluble granules.

[0325] Example 27

[0326] Efficacy test of soluble granules of Examples 27 to 38 and Comparative Examples 9 to 12 for controlling weeds in vineyard fields

[0327] Usage: Add 30 liters of water per acre and spray evenly in each plot.

[0328] Application time: When weeds are in the early and middle stages of field growth, spray the stems and leaves once.

[0329] Investigation methods and efficacy calculation:

[0330] The survey subjects are annual and perennial grass and broad-leaved weeds, and the weed control efficacy is evaluated 14 days and 30 days after application.

[0331] The purpose of this trial is to confirm the actual control effectiveness of glufosinate and / or refined glufosinate combined with foliar fertilizer on weeds between vineyard rows. This study also provides a comprehensive evaluation of glufosinate and / or refined glufosinate combined with foliar fertilizer, providing a theoretical basis for further application. The trial was conducted in accordance with GB / T 17980-2000, Guidelines for Field Efficacy Tests of Pesticides.

[0332] 1 Materials and Methods

[0333] 1.1 Test agents

[0334] Control agents: glufosinate-ammonium and / or glufosinate-ammonium and foliar fertilizer compound formulations, see Examples 27 to 38 and Comparative Examples 9 to 12 for details.

[0335] 1.2 Test subjects

[0336] The main weeds between the rows of the grape fields were barnyard grass, foxtail grass, crabgrass, and purslane, while the main perennial weed was Erigeron spp. At the time of application, weed coverage in each treatment plot was 80%, with plant heights ranging from 15 to 30 cm.

[0337] 1.3 Experimental design

[0338] The experiment included 16 treatments, each with a blank control (CK). Each plot was 66 square meters in size, with three replicates, for a total of 39 plots. The plots for the different treatments were arranged using completely randomized blocks. The design treatments are shown in Table 53.

[0339] Table 53

[0340] 1.4 Test environment conditions

[0341] The experimental site is Daxin Town, Zhangjiagang City, Jiangsu Province, and the experimental field is a 5-year-old vineyard with flat terrain and sandy loam soil.

[0342] Test weather: The weather on the day of application was cloudy, with a maximum temperature of 12°C and a minimum temperature of 6°C, and no wind. There was no rainfall for 3 days after application.

[0343] 1.5 Test method

[0344] The experiment was conducted on the afternoon of March 19, 2022. A backpack electric sprayer was used for spraying. A protective cover was installed to carry out targeted spraying on weeds between the grape rows, trying to avoid spraying the liquid on the grapes. 30L / mu of water was used for each treatment.

[0345] 2 Investigation methods and efficacy evaluation methods

[0346] The control effect of each treatment was investigated 14 and 30 days after application. A three-point sampling method was used, with 0.5 square meters of weeds sampled at each point. The types and numbers of weeds were recorded. The effects on the grapes were also visually observed.

[0347] The survey results are shown in Table 54 below.

[0348] Table 54

[0349] As can be seen from Table 54, compared with the comparative example and the control agent, under low temperature conditions, the control effect of the glufosinate ammonium and / or refined glufosinate ammonium compounded with foliar fertilizers in different embodiments on annual and perennial weeds was significantly improved.

[0350] Comparative Examples 28-30 show that different boron dosages have different synergistic effects on glufosinate-ammonium, and the synergistic effect will be reduced when a certain dosage is exceeded.

[0351] In Examples 35 and 38, the synergistic effect of glufosinate / refined glufosinate in combination with boron, urea and potassium hydrogen phthalate is most obvious.

[0352] Further comparison shows that the efficacy of soluble granules is not much different from that of soluble liquid, but the cost of soluble liquid is more economical than that of soluble granules.

[0353] The grapes in the above treatment groups grew normally, indicating that the above soluble granules are safe for grapes.

[0354] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made in accordance with the spirit of the present invention are intended to be covered by the scope of protection of the present invention.

Claims

1. A herbicidal composition, characterized in that: The invention comprises glufosinate ammonium and / or refined glufosinate ammonium, and foliar fertilizer; the foliar fertilizer is one or more of potassium hydrogen phthalate, boron, ammonium sulfate and urea.

2. The herbicidal composition according to claim 1, characterized in that: The foliar fertilizer includes at least boron.

3. The herbicidal composition according to claim 1, characterized in that: The foliar fertilizer is two or more of potassium hydrogen phthalate, boron, ammonium sulfate and urea.

4. The herbicidal composition according to claim 3, characterized in that: The foliar fertilizer includes at least one of boron and urea.

5. The herbicidal composition according to claim 1 or 3, characterized in that: The foliar fertilizer includes boron and urea.

6. The herbicidal composition according to claim 1, characterized in that: The foliar fertilizer includes potassium hydrogen phthalate, boron and urea.

7. The herbicidal composition according to claim 1, characterized in that: The mass ratio of the glufosinate and / or refined glufosinate to the foliar fertilizer is 1 to 400:

1.

8. The herbicidal composition according to claim 7, characterized in that: The mass ratio of the glufosinate and / or refined glufosinate to the foliar fertilizer is 1 to 200:

1.

9. The herbicidal composition according to claim 7, characterized in that: The mass ratio of the glufosinate ammonium to the foliar fertilizer is 2 to 400:1; the mass ratio of the refined glufosinate ammonium to the foliar fertilizer is 1 to 200:

1.

10. The herbicidal composition according to claim 1, characterized in that: The foliar fertilizer includes boron, and the mass ratio of the glufosinate and / or refined glufosinate to the boron is 50 to 400:

1.

11. The herbicidal composition according to claim 10, characterized in that: The mass ratio of the glufosinate and / or refined glufosinate to the boron is 80 to 250:

1.

12. The herbicidal composition according to claim 10, characterized in that: The mass ratio of the glufosinate ammonium to the boron is 100 to 400:1; the mass ratio of the refined glufosinate ammonium to the boron is 50 to 200:

1.

13. The herbicidal composition according to any one of claims 1 to 12, characterized in that: The herbicidal composition further comprises an agrochemically acceptable adjuvant.

14. The herbicidal composition according to claim 13, characterized in that: In terms of mass percentage, the glufosinate ammonium and / or refined glufosinate ammonium is 0.1% to 80%, and the foliar fertilizer is 0.001% to 50%.

15. The herbicidal composition according to claim 13, characterized in that: The herbicidal composition is in the form of an oil suspension, a soluble liquid or a soluble granule.

16. The herbicidal composition according to claim 13, characterized in that: The pesticide-acceptable adjuvant includes one or more of a surfactant, a binder, a thickener, a filler, and a solvent.

17. The herbicidal composition according to claim 16, characterized in that: The surfactant is selected from one or more combinations of alkyl glycoside additives, tallow amine additives, sodium dodecylbenzene sulfonate, calcium dodecylbenzene sulfonate, sodium dodecyl sulfate, sodium dodecylbenzene sulfate, lignin sulfonate, polyoxyethylene ether sulfonate, alkylnaphthalene sulfonate formaldehyde condensate, polycarboxylate, alkylphenol polyoxyethylene ether, fatty alcohol polyoxyethylene ether, castor oil polyoxyethylene ether, fatty alcohol polyoxyethylene ether sulfate, alkylphenol polyoxyethylene ether sulfate, phenethylphenol polyoxyethylene ether, alkylphenol polyoxyethylene ether phosphate, phenethylphenol polyoxyethylene ether phosphate; and / or, The binder is selected from one or more combinations of soluble starch, dextrin, glucose, carboxymethyl cellulose, and lignin sulfonate; and / or, The thickener is selected from one or more combinations of xanthan gum, magnesium aluminum silicate, white carbon black, hydroxymethyl cellulose, hydroxyethyl cellulose, polyvinyl alcohol, and bentonite; and / or, The filler is selected from one or more combinations of lactose, glucose, sodium pyrophosphate, trisodium phosphate, urea, corn starch, bentonite, diatomaceous earth, kaolin, white carbon black, pearl clay, and light calcium carbonate; and / or, The solvent is selected from one or more combinations of methyl oleate, vegetable oil, soybean oil, corn oil, rapeseed oil, castor oil, mineral oil, cottonseed oil, palm oil and water.

18. The herbicidal composition according to claim 15, characterized in that: The herbicidal composition is an oil suspension, which comprises the following components by mass percentage: 10% to 30% of glufosinate ammonium and / or refined glufosinate ammonium, 0.001% to 30% of foliar fertilizer, 2% to 20% of surfactant, 0.1% to 2% of thickener, and solvent supplemented to 100%; or, The herbicidal composition is a soluble liquid, which comprises the following components by mass percentage: 0.1% to 60% of glufosinate ammonium and / or refined glufosinate ammonium, 0.001% to 50% of foliar fertilizer, 2% to 20% of surfactant, and solvent supplemented to 100%; or, The herbicidal composition is a soluble granule, which comprises the following components by mass percentage: 10% to 80% of glufosinate ammonium and / or refined glufosinate ammonium, 0.001% to 50% of foliar fertilizer, 2% to 20% of surfactant, 2% to 10% of binder, and filler to 100%.

19. A herbicidal composition, characterized in that: The herbicidal composition is an oil suspension, which comprises, by mass percentage, 10% to 30% of glufosinate ammonium and / or refined glufosinate ammonium, 0.001% to 30% of foliar fertilizer and the remainder of pesticide-acceptable adjuvants, wherein the foliar fertilizer is one or more of potassium hydrogen phthalate, boron, ammonium sulfate and urea.

20. The herbicidal composition according to claim 19, characterized in that: The pesticide-acceptable adjuvant comprises 2% to 20% of a surfactant, 0.1% to 2% of a thickener, and the balance of a solvent.

21. The herbicidal composition according to claim 20, characterized in that: The surfactant is fatty alcohol polyoxyethylene ether and alkylbenzene sulfonate, the thickener is bentonite, and the solvent is methyl oleate.

22. A herbicidal composition, characterized in that: The herbicidal composition is a water-soluble preparation, which comprises, by mass percentage, 0.1% to 80% of glufosinate ammonium and / or refined glufosinate ammonium, 0.001% to 50% of foliar fertilizer and the remainder of pesticide-acceptable adjuvants, wherein the foliar fertilizer is one or more of potassium hydrogen phthalate, boron, ammonium sulfate and urea.

23. The herbicidal composition according to claim 22, characterized in that: The water-soluble preparation is a soluble liquid, and the pesticide-acceptable adjuvant comprises 2% to 20% of a surfactant and the remainder of a solvent.

24. The herbicidal composition according to claim 23, characterized in that: The surfactant is alkyl glycoside and fatty alcohol polyoxyethylene ether sulfate, and the solvent is water.

25. The herbicidal composition according to claim 22, characterized in that: The water-soluble preparation is a soluble granule, and the pesticide-acceptable adjuvant comprises 2% to 20% of a surfactant, 2% to 10% of a binder and the balance of fillers.

26. The herbicidal composition according to claim 25, characterized in that: The surfactant is naphthalenesulfonate formaldehyde condensate and polycarboxylate, the binder is soluble starch, and the filler is diatomaceous earth.

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