41 results about "Setaria viridis" patented technology

The invention discloses a walnut green seedcase extract as well as a preparation method and application thereof. Relates to the technical field of agricultural weeding. The invention provides a preparation method of a walnut green seedcase extract, the extract and application thereof. The walnut green seedcase extract disclosed by the invention has a remarkable growth inhibition effect on various common farmland weeds, including but not limited to barnyard grass, green bristlegrass, digitaria sanguinalis, purslane, amaranthus retroflexus and the like. During application, the walnut green seedcase extract (concentrated solution) can be diluted and then uniformly sprayed on the surfaces of farmland weeds through a sprayer, or applied to soil around the roots of the weeds in a root irrigation manner. And the dilution ratio is determined according to weed types, growth stages and environmental conditions, and is generally 10-50 times.

The invention discloses an application of a compound Phyllanthusmin C in serving as a herbicide. A large number of studies show that the compound Phyllanthusmin C separated and purified from the taiwania flousiana has broad-spectrum herbicidal activity; the weeding composition has an obvious inhibition effect on various weeds such as ageratum conyzoides, mikania micrantha, euonymus japonicus, horseweed herb, cleavers, xanthium sibiricum, mazus japonicus, purslane, dayflower, carp intestines, barnyard grass, eleusine indica, digitaria sanguinalis, green bristlegrass, cyperus iria, bidens pilosa, alternanthera philoxeroides, moleplant seed, alopecurus aequalis and cyperus rotundus, is very efficient, and is obviously superior to the existing most common herbicide glyphosate. Besides, the compound Phyllanthusmin C is derived from natural plants, is safe and environment-friendly, has the advantage of environmental friendliness, and has very good application value and prospect in the aspect of developing herbicides.

The invention belongs to the field of agricultural herbicides, and particularly relates to a phenyl isoxazoline ester compound and application thereof. The phenyl isoxazoline ester compound is shown in a general formula (I), the compound in the general formula (I) has good herbicidal activity, can effectively control weeds such as barnyard grass, green bristlegrass, cyperus difformis, juncellus serotinus, digitaria sanguinalis, hispid arthraxon, piemarker, zinnia elegans, amaranthus retroflexus, portulaca oleracea, xanthium sibiricum, solanum nigrum, cassia occidentalis, capparis spinosa and wild soybean, and a good herbicidal effect can be obtained at a low dosage. The weeding composition has good safety to crops such as corn, wheat and rice, and can be used as a herbicide in agriculture. # imgabs0 #

The invention relates to the technical field of agricultural herbicides, and discloses a herbicide suitable for cnidium monnieri planting in southern districts and a preparation method thereof, the herbicide is composed of 4-8% by mass of nicosulfuron, 16-20% by mass of atrazine and 8-12% by mass of quizalofop-p-ethyl, and the balance is water. The mass ratio of nicosulfuron to atrazine is (1: 3)-(1: 5). The nicosulfuron and the atrazine have a dual mechanism of inhibiting the activity of acetolactate synthetase of weeds and blocking photosynthesis, the control effect within 30 days after application reaches 85% or above, gramineae weeds such as digitaria sanguinalis and barnyard grass and broadleaf weeds such as chenopodium album and amaranth can be effectively prevented and removed, only slight phytotoxicity such as transient leaf chlorosis is caused to cnidium monnieri plants, and the effect is remarkable. The quizalofop-p-ethyl inhibits the activity of weed acetyl-coenzyme A carboxylase and blocks fatty acid synthesis, and has a good control effect on green bristlegrass, eleusine indica and other grassy weeds.

The invention relates to the technical field of pesticide reduction and synergism, and discloses a synergistic weeding composition based on trifluralin and butralin as well as a preparation method and application of the synergistic weeding composition. The composition comprises 10-20 parts of trifluralin, 10-20 parts of butralin, 70-80 parts of a solvent, 5-15 parts of an emulsifier, 2-5 parts of silicone oil and 1-10 parts of an antioxidant. The antioxidant has a structure. Tests show that the control effect of the composition on broad-leaf weeds such as edible amaranth and chenopodium album and grassy weeds such as green bristlegrass and digitaria sanguinalis reaches 80-100%, and the removal rate of the composition under the concentration of 16 mu M in a DPPH free radical removal experiment reaches up to 91.2%. The problems that a traditional herbicide is prone to oxidation inactivation, poor in pesticide effect persistence, high in environmental risk and the like are effectively solved, and efficient weeding and environmental safety are achieved.

This invention discloses a photoperiod regulation gene of foxtail grass. SvEhd1 Its application in shortening the research cycle of rice resistance to rice blast falls under the fields of genetic engineering and plant breeding. SvEhd1 The gene nucleotide sequence is shown in SEQ ID NO.1. This invention utilizes cloning... SvEhd1 Genes and their promoters were used to construct recombinant expression vectors, which were then transformed into the blast-susceptible rice variety "Taipei 309," resulting in transgenic rice materials with significantly shortened growth periods. Under natural and artificial long-day conditions, the heading time of the transgenic plants was significantly earlier than that of the wild type, the generation rate was accelerated, and the blast susceptibility of the original variety was not altered. The transgenic materials and methods provided by this invention can effectively shorten the experimental cycle for verifying the function of rice blast resistance genes and evaluating resistance, providing an efficient experimental system for rice disease resistance research.

The present invention is applicable to the field of agricultural production technology, and provides a preparation method and application of a 2,4-di-tert-butylphenol-betaine eutectic. The present invention adopts a eutectic strategy through crystal engineering technology, significantly improves the thermal stability and solubility of 2,4-di-tert-butylphenol, and reduces its volatility. The 2,4-di-tert-butylphenol-betaine eutectic synthesized by the present invention, compared with 2,4-di-tert-butylphenol, significantly improves the growth inhibition of farmland weeds such as ryegrass, foxtail grass, water barnyard grass, purslane, Amaranthus retroflexus and Bidens pilosa, showing great potential in the long-term inhibition of agricultural weeds. In addition, 2,4-di-tert-butylphenol and betaine are both natural source ingredients, environmentally friendly and low cost. At the same time, the present invention effectively reduces the amount of organic solvent used by grinding-induced self-assembly method, further reduces production costs, and thus improves the feasibility of developing it into a commercial product.

This invention relates to the fields of compound synthesis technology and pesticide technology, specifically to natural naphthoquinone derivatives and their preparation methods and applications. The natural naphthoquinone derivatives are either natural naphthoquinone derivatives containing aryl carboxylic acids or natural naphthoquinone derivatives containing diphenyl ether units. Some of the natural naphthoquinone aryl carboxylic acid derivatives and natural naphthoquinone diphenyl ether derivatives of this invention exhibit 100% control efficacy against six weeds (barnyard grass, crabgrass, foxtail grass, velvetleaf, amaranth, purslane, etc.) at a dosage of 300 a.g. / ha. These compounds achieve good weed control effects at low dosages and have relatively good safety for crops such as corn, wheat, peanuts, soybeans, and cotton. They can be used as selective herbicides in agriculture. The compounds of this invention can be developed and used as potential PSII inhibitors and post-emergence herbicides for broadleaf weeds. The derivatives have simple structures and preparation processes, low production costs, and broad application prospects.

The present invention provides a method for detecting the insertion copy number of foreign genes in Setaria viridis or foxtail millet by fluorescence quantitative PCR or digital PCR, belonging to the field of biotechnology. The method uses RA1 gene as an internal reference gene and Hyg screening marker gene as a foreign gene, and uses primer pairs RA1-F / RA1-R and primer pairs Hyg-F / Hyg-R to detect the genomic DNA of transgenic Setaria viridis or transgenic foxtail millet, and determine the insertion copy number of foreign genes in transgenic Setaria viridis or transgenic foxtail millet. The present invention provides a method for detecting the insertion copy number of foreign genes in Setaria viridis or foxtail millet by fluorescence quantitative PCR or digital PCR, which has the characteristics of simplicity, rapidity, low sample consumption, high efficiency, high throughput, etc., can improve the efficiency of screening transgenic lines of Setaria viridis or foxtail millet with low-copy insertions, and provides a new option for the detection method of the insertion copy number of foreign genes in the research of transgenic Setaria viridis or transgenic foxtail millet.

The invention discloses a function and application of SiDRe1 for regulating and controlling the drought resistance of millet, and aims at solving the technical problem of how to improve the drought resistance of the millet. Specifically disclosed are applications of a protein, a substance for knocking out or inhibiting or reducing or down-regulating expression of a coding gene of the protein, or a substance for knocking out or inhibiting or reducing or down-regulating activity or content of the protein in any one of the following: A1) an application in improving drought resistance of green bristlegrass plants; a2) application in preparation of products for improving drought resistance of green bristlegrass plants; a4) plant breeding and / or preparation of plant breeding products; the protein is any one of the following: B1) a protein with an amino acid sequence as shown in SEQ ID No.3; b2) a protein which is obtained by substitution and / or deletion and / or addition of amino acid residues of the protein B1), has 80% or more of identity with the protein B1) and has the same function as the protein B1); and B3) a fusion protein obtained by connecting the N terminal or / and the C terminal of B1) or B2) with a protein tag. The drought resistance of the millet can be improved by inhibiting or reducing or down-regulating the expression of the GmPHD6 gene of the millet, and the GmPHD6 gene can be used for production.

The invention provides a method for detecting an exogenous gene insertion copy number in green bristlegrass or millet by adopting digital PCR (Polymerase Chain Reaction), and belongs to the technical field of biology, the method comprises the following steps: detecting genome DNA (Deoxyribonucleic Acid) of transgenic green bristlegrass or transgenic millet by taking a Sevir.3G057200 gene as a reference gene and a Hyg selection marker gene as an exogenous gene and utilizing 200-F / 200-R and a primer pair Hyg-F / Hyg-R, and judging the insertion copy number of the exogenous gene in the transgenic green bristlegrass or the transgenic foxtail millet. The method disclosed by the invention has the characteristics of simplicity, rapidness, low sample dosage, high efficiency, high throughput and the like, can improve the efficiency of screening the low-copy inserted green bristlegrass or millet transgenic line, and provides a new choice for the method for detecting the insertion copy number of the exogenous gene in the research of the transgenic green bristlegrass or transgenic millet.

The present application relates to the field of pesticide herbicide, disclose a kind of compound containing pyrazole-quinazoline dione structure and a kind of herbicide and application, the compound has the structure shown in formula (I). Pyrazole-quinazoline dione structure compound provided by the present application can be to barnyard grass, euphorbia, crabgrass, dogtail grass, amaranth, goosefoot, abutilon etc. Many kinds of Gramineae weeds and broadleaf weeds that harm the growth of rice have excellent control effect.

The invention belongs to the technical field of pesticides, and discloses a pyrazole amide compound containing uracil as well as a preparation method and application of the pyrazole amide compound. The pyrazole amide compound containing the uracil or the salt of the pyrazole amide compound as shown in the formula (I) is prepared, the pyrazole amide compound containing the uracil or the salt of the pyrazole amide compound shows excellent pre-emergence and post-emergence weeding effects on various weeds such as barnyard grass, green bristlegrass and chickweed, and the compound D23 disclosed by the patent US5356863A only shows post-emergence weeding activity; the pre-emergence weeding activity is not shown. Besides, the pyrazole amide compound containing uracil or salt thereof provided by the invention has extremely high safety to wheat, rice and corn in pre-emergence soil spraying treatment, and also has relatively high safety to rice and corn in post-emergence stem and leaf spraying treatment; the composition can be processed into various dosage forms such as missible oil, a suspending agent, a dispersible oil suspending agent and the like which meet agricultural production requirements, and the diversity requirements of pesticide preparations are met.

The application discloses a rapid molecular detection method for a His-170-Pro mutation of a green dogtail grass ALS gene, and belongs to the technical field of gene mutation detection. First, a DNA sample of the green dogtail grass is extracted, then LAMP specific primers designed according to a resistant mutation site of the ALS gene are used for constant-temperature amplification, a fluorescent dye is added into the amplification product, the fluorescent intensity change is observed under ultraviolet light, and / or the amplification product is subjected to agarose gel electrophoresis analysis, so that the rapid molecular detection of the His-170-Pro mutation of the green dogtail grass ALS gene is realized. The application realizes rapid, efficient and visual detection of the target nucleic acid, overcomes the defects of time-consuming, laborious, high cost, high dependence on instruments and equipment, complex procedures, long detection period and accuracy easily affected by operation in the prior art ALS-resistant green dogtail grass His-170-Pro mutation identification and detection method, and can greatly improve the field detection efficiency of the resistant green dogtail grass.

This invention discloses a compound with a (9β-H)-pinene core that inhibits weed growth, its preparation method, and its applications. In this invention, the ethanol extract of the tuberous part of *Cornus mansoni* is purified by macroporous resin column chromatography, followed by recrystallization and C244-distillation. 18 Gradient elution was performed using reversed-phase medium-pressure column chromatography; finally, its chemical structure was identified by methods such as proton NMR, carbon NMR, and comparison with literature data. The compound icacenone in this invention exhibits significant inhibitory effects on the root growth of Arabidopsis thaliana, barnyard grass, and foxtail grass, while remaining safe for the growth of rice and Job's tears, making it a potential pesticide formulation for developing biological herbicides.

The present invention discloses a Bacillus amyloliquefaciens NTNK‑3 and its application. Bacillus amyloliquefaciens NTNK‑3 has been deposited in the Guangdong Provincial Microbial Culture Collection Center on July 6, 2022, and its deposit number is GDMCC No: 62606. The bacterium has the effect of inhibiting plant pathogenic fungi and weeds, and has an inhibitory effect on Colletotrichum gloeosporioides that causes anthracnose of pitaya and Penicillium digitatum that causes green mold disease of citrus; the germination inhibition rates of three weeds, barnyard grass, crabgrass and Amaranthus retroflexus, are 82.93%, 94.44% and 94.87% respectively, the root length inhibition rates of Setaria viridis and Amaranthus retroflexus are 96.2% and 91.84% respectively, and the stem length inhibition rates of Setaria viridis and Amaranthus retroflexus are 92.19% and 67.05% respectively.

The present application discloses a kind of corn field's herbicidal water dispersible granule, active ingredient includes mesotrione, ametryn and dichlorprop. Compared with the existing single active ingredient preparation, the herbicidal water dispersible granule of the present application adopts triple action mechanism, in addition to having significant herbicidal effect, but also can expand the herbicidal spectrum;Water dispersible granule has high suspension rate, strong hard water resistance, suitable for different regions corn field a variety of malignant weed control, such as barnyard grass, crabgrass, green dogtail grass, senna, amaranthus retroflexus, chenopodium etc., stable efficacy, long persistence, less preparation residue, can significantly reduce the resistance of weed EC 50 , and no phytotoxicity to crops, good safety, in line with the safety requirements of pesticide preparation.

This application discloses a multi-source grain and bean compound health-preserving cereal formula, which is composed of the following raw materials in the following weight proportions: 2-8 coweye beans, 3-9 kidney beans, 5-9 red beans, 2-7 white kidney beans, 5-8 corn kernels, 4-8 golden silk beans, 5-9 brown rice, 6-10 soybeans, 4-7 mung beans, 4-7 black rice, 6-9 millet, 5-10 red lentils, 3-5 barnyard grass seeds, 1-3 foxtail grass seeds, 2-5 wild millet, 1-3 canary seeds, 2-4 oats, 4-8 buckwheat, 2-6 chickpeas, 4-7 Job's tears, 2-4 rye flakes, 0.1-0.3 foxnut (for diuresis and dampness removal), 0.2-0.6 lily bulbs, 0.1-0.3 lotus seeds, 0.2-0.3 quinoa, 0.2-0.5 wild millet, and 0.2-0.5 spotted beans. According to this application, a multi-source grain and legume compound health cereal formula adopts a four-layer gradient scientific compound structure. The raw materials include conventional grains, legumes, native wild seeds and trace amounts of medicinal and edible ingredients. The nutrition is comprehensive and complementary, which can fully supplement the human body with high-quality plant protein, complex dietary fiber, rare minerals and amino acids.

The present invention discloses a method for planting Setaria viridis in the arid areas of Northwest China. The method belongs to the field of agricultural planting. The method comprises the following steps: planting in an area below 1800m above sea level to increase the seed setting rate and maturity; selecting a deep and flat soil layer, and adopting measures such as applying base fertilizer and irrigating before sowing to accelerate the emergence of seedlings and improve the survival rate; screening seeds by water sorting to improve the seed purity and germination rate; sowing in an area with an air temperature of above 20°C and a soil moisture content of 30% to 40% after irrigating for 5 days to increase the emergence rate of Setaria viridis; adopting a fixed and quantitative drip irrigation and topdressing to achieve water-saving and efficient irrigation and nutrient supplementation; and timely mowing and harvesting according to the growth characteristics of the plant to increase the biological yield and seed quality of Setaria viridis. The method improves the production efficiency of Setaria viridis, accelerates the grassland establishment process of Setaria viridis, and provides technical support for ensuring the promotion and utilization of Setaria viridis in the arid areas of Northwest China.

The present invention discloses a walnut peel extract, a preparation method and an application thereof. It relates to the technical field of agricultural weed control. A preparation method of a walnut peel extract, the extract and an application thereof are provided. The walnut peel extract of the present invention has a significant growth inhibitory effect on a variety of common farmland weeds, including but not limited to barnyard grass, foxtail grass, crabgrass, purslane, and Amaranthus retroflexus. During application: the walnut peel extract (concentrated solution) can be diluted and evenly sprayed on the surface of farmland weeds through a sprayer, or applied to the soil around the roots of the weeds by root irrigation. The dilution multiple depends on the weed species, growth stage and environmental conditions, and is generally 10 to 50 times.

The present invention belongs to the field of pesticide technology and relates to a compound with herbicidal activity, its preparation method, and application. Spraying 4.5 to 9.0 g / ha of the N-pyridylbenzothiazole heterocyclic derivative on the soil before seedling emergence or 1.5 to 4.5 g / ha on the stems and leaves after seedling emergence shows good control effects on broad-leaved weeds such as Amaranthus retroflexus, Abutilon, Chenopodium album, Purslane, Veronica, and Geranium, as well as grass weeds such as Echinochloa crus-galli and Setaria viridis. Crop safety tests have shown that the N-pyridylbenzothiazole heterocyclic derivative is safe for winter wheat, rice, and corn at an application rate of 4.5 to 15.0 g / ha. The present invention provides an effective solution for the management of resistant weeds, and the N-pyridylbenzothiazole heterocyclic derivative can be developed into a herbicide with broad market prospects.

The invention belongs to the technical field of environmental functional materials and advanced treatment of antibiotic wastewater, and particularly relates to directionally activated and modified biochar based on a green bristlegrass silicon-rich-vascular bundle structure as well as a preparation method and application of the directionally activated and modified biochar. The preparation method comprises the following steps: cleaning green bristlegrass, drying, crushing and sieving; dipping green bristlegrass powder in a KOH solution, initiating pre-activation, and drying after dipping is finished; in an inert atmosphere, pyrolyzing the impregnated sample; and finally, sequentially carrying out acid pickling, water washing, re-drying, crushing and sieving on the pyrolyzed sample to obtain the directionally activated and modified charcoal. The preparation process is simple, and the cost is low; the prepared material has a high specific area, is mainly mesopores, is rich in oxygen-containing functional groups on the surface, can be used as a high-selectivity and high-capacity tetracycline adsorption material, and can keep stable adsorption performance in a wide pH range. The method disclosed by the invention realizes the dual goals of waste recycling and antibiotic deep purification, and has extremely high industrialization value and application prospect.

The invention relates to a 5-acyl barbituric acid compound containing a pyrimidinedione structure, a preparation method of the 5-acyl barbituric acid compound and application of a herbicide of the 5-acyl barbituric acid compound. The phenoxyalkyl acyl chloride compound containing the pyrimidinedione structure is obtained by taking a nitrophenol compound as a raw material through nucleophilic reaction, hydrogenation reduction reaction, condensation ring closing reaction, hydrolysis reaction and acylating chlorination reaction. The 5-acyl barbituric acid compound containing the pyrimidinedione structure is obtained through an intermolecular condensation reaction with a barbituric acid compound, and a weeding test result shows that the yield of the 5-acyl barbituric acid compound containing the pyrimidinedione structure is increased at the dosage of 150 g / hectare in post-seedling treatment. The compound disclosed by the invention has a good growth inhibition effect on dicotyledonous plants such as rape, piemarker, amaranthus retroflexus and chenopodium album and monocotyledonous plants such as barnyard grass, digitaria sanguinalis, eleusine indica and green bristlegrass, and is a broad-spectrum herbicide with a novel structure and a wide application prospect.

The invention belongs to the technical field of compound synthesis, and particularly relates to a pyrazol-quinoxaline derivative and a preparation method and application thereof.The pyrazol-quinoxaline derivative is based on combination of a pyrazol structure and quinoxaline ketone, scientific and reasonable connection is carried out by screening connecting bonds, connecting sites and the like, and the pyrazol-quinoxaline derivative is obtained. The pyrazole-quinoxaline weeding drug micromolecules with relatively stable physicochemical properties and excellent druggability are prepared; the derivative especially has a remarkable post-emergence inhibition effect on barnyard grass, eleusine indica, green bristlegrass, piemarker, amaranthus retroflexus and purslane.

The application belongs to the field of environmental functional materials and advanced treatment technology of antibiotic wastewater, and particularly relates to a directional activation modified biochar based on a silicon-rich dogtail grass vascular bundle structure, a preparation method and application thereof; the preparation method comprises the following steps: washing and drying dogtail grass, and then crushing and sieving; immersing dogtail grass powder in a KOH solution to initiate pre-activation, and then drying after the immersion; pyrolyzing the sample after the immersion in an inert atmosphere; and finally, sequentially performing pickling, water washing, drying, crushing and sieving on the sample after the pyrolysis to obtain the directional activation modified biochar. The application has the advantages of simple preparation process and low cost; the prepared material has a high specific area, is mainly mesoporous, and is rich in oxygen-containing functional groups on the surface, and can be used as a high-selectivity and high-capacity tetracycline adsorption material which can maintain stable adsorption performance in a wide pH range. The application realizes the dual goals of "waste resource utilization-antibiotic deep purification", and has strong industrialization value and application prospect.

The invention discloses application of an aminomethyl phosphoric acid derivative in weeding. The aminomethyl phosphoric acid derivative has a structural formula as shown in a formula (1) or a formula (2). Through synthesis and evaluation of in-vivo herbicidal activity and in-vitro EPSPS inhibition activity of various aminomethyl phosphoric acid derivatives, the two compounds have significant in-vitro EPSPS inhibition effects and have good in-vivo inhibition effects on grassy weeds such as green bristlegrass and digitaria sanguinalis. And the composition basically has no harm to six common crops such as wheat, rice, peanut, corn, soybean and cotton in vivo.

The invention relates to a compound as shown in a formula (I) or a stereoisomer, a tautomer, a solvate, a hydrate and a pharmaceutically acceptable salt thereof. The compound has good inhibitory activity on PPO. The weeding composition has especially excellent weeding activity on barnyard grass, morning glory, green bristlegrass, abutilon fiber and other weeds, and especially has an excellent effect on broadleaf weeds.

The present invention provides a method for detecting the copy number of exogenous gene insertion in Setaria viridis or foxtail millet by digital PCR, belonging to the field of biotechnology. The method uses the Sevir.3G057200 gene as an internal reference gene and Hyg the selectable marker gene as the exogenous gene, and uses the primer pairs 200-F / 200-R and Hyg-F / Hyg-R to detect the genomic DNA of transgenic Setaria viridis or transgenic foxtail millet, and to determine the copy number of exogenous gene insertion in transgenic Setaria viridis or transgenic foxtail millet. The method of the present invention has the characteristics of being simple, rapid, low sample consumption, efficient, and high-throughput, can improve the efficiency of screening transgenic lines of Setaria viridis or foxtail millet with low-copy insertion, and provides a new option for the detection method of the copy number of exogenous gene insertion in the research of transgenic Setaria viridis or transgenic foxtail millet.

The invention discloses diphosphonic acid and a salt compound thereof, a preparation method and application. The structural formula of the bisphosphonic acid and the salt compound thereof is shown as a formula (I). According to the preparation method, methyl (3-oxopropyl) phosphinic acid is taken as an initial raw material, a target product [1-hydroxy-3-(methylphosphonyl) propyl]-methylphosphinic acid is prepared through condensation and hydrolysis two-step reaction, and the target product reacts with an alkaline substance to obtain corresponding salt. The obtained target product has a bisphosphonic acid skeleton, and the bisphosphonic acid herbicide lead compound with a novel structure is beneficial to improving the weed removal effect; meanwhile, the target product is salified to obtain a salt compound, the salt compound is used for preparing herbicides for preventing and controlling green bristlegrass, amaranthus retroflexus, chenopodium album and other weeds, the obvious weeding effect is achieved, the water solubility, hygroscopicity, stability and the like of the compound can be changed by preparing the salt compound into the salt, and therefore different preparation requirements are met.

The application discloses a kind of bisphosphonic acid and its salt compound, preparation method and application.The structural formula of the bisphosphonic acid and its salt compound is as shown in formula (I).The preparation method is to prepare target product [1-hydroxy-3-(methyl phosphine acyl) propyl]-methyl hypophosphorous acid by condensation and hydrolysis two-step reaction with methyl (3-oxo propyl) hypophosphorous acid as starting material, and the target product is reacted with basic substance to obtain corresponding salt.The target product obtained by the application has bisphosphonic acid skeleton, and the novel bisphosphonic acid herbicide lead compound is beneficial to improve weed removal effect;Meanwhile, the salt compound obtained by salifying the target product is used to prepare herbicide for preventing and treating setaria viridis, amaranthus retroflexus, small gooseweed and other weeds, and has obvious weeding effect, and preparing salt can improve water solubility, hygroscopicity, stability and the like of the compound, so as to adapt to different formulation requirements.