86 results about "Bioherbicide" patented technology

The present invention refers to a method for controlling undesired vegetation at a plant cultivation site, the method comprising the steps of providing, at said site, a plant that comprises at least one nucleic acid comprising a nucleotide sequence encoding a wild-type or a mutated protoporphyrinogen oxidase (PPO) which is resistant or tolerant to a benzoxazinone-derivative herbicide by applying to said site an effective amount of said herbicide. The invention further refers to plants comprising wild-type or mutated PPO enzymes, and methods of obtaining such plants.

The present invention relates to the use of a strain of Burkholderia andropogonis for controlling the growth of a weed belonging to the order Caryophyllales. The present invention also provides a method for suppressing weed growth, comprising applying a strain of Burkholderia andropogonis to a weed belonging to the order Caryophyllales. Also provided is a biocontrol composition for controlling the growth of a weed belonging to the order Caryophyllales, the composition comprising a strain of Burkholderia andropogonis, and a suitable medium.

The invention discloses solid granules of biological weedicide Jun Kekuo and a preparation method therefor. The solid granules are prepared through granulating a solid matrix, Sclerotium rolfsii mycelial masses, a binder and water which serve as raw materials; the weight ratio of the solid matrix to the Sclerotium rolfsii mycelial masses to the binder to the water is 30: (35-55): (0.4-12): (12-16); and the solid matrix is any one or more selected from rice straws, wheat straws, rape straws, cotton stalks, Solidago canadensis straws, cane straws, soybean straws, rice hulls, cotton seed hulls, garden deadwood and wood dust, and the binder is selected from white carbon black or glutinous rice flour. According to the solid granules and the preparation method therefor, mycelia are produced by using a liquid fermentation technology, so that the time consumed is shortened to more than half of the time for solid fermentation. A solid powdered material is coated with microbial pesticide active mycelia so as to form a granular formulation, thus, the storage period is prolonged, the drug effect is improved, and the consumption is reduced.

The invention belongs to the technical field of organic fertilizers, and relates to an active probiotic organic fertilizer prepared by using rice bran, bean pulp and other organic matters as a culture medium and carrier by anaerobic fermentation and aerobic fermentation and application thereof. The active probiotic organic fertilizer is prepared from the following raw materials in parts by weight: 320-350 parts of soybean meal with the water content of 10-15%, 20-30 parts of rice bran with the water content of 10-15%, 380-400 parts of fish meal with the water content of 10-15%, 20-30 parts of strain, 20-30 parts of brown sugar with the water content of 3-5%, 1-2 parts of fermentation initiator and 200-210 parts of water. The organic fertilizer can be used as a straw rotting agent, a composting initiator, a garbage reducer, a sewage purifier, a biological organic fertilizer and a biological weedicide. The product is green and environment-friendly, is convenient to use, and has the advantages of wide application range, high yield, good quality and obvious use effect.

The present invention refers to a method for controlling undesired vegetation at a plant cultivation site, the method comprising the steps of providing, at said site, a plant that comprises at least one nucleic acid comprising a nucleotide sequence encoding a wild-type or a mutated protoporphyrinogen oxidase (PPO) which is resistant or tolerant to a benzoxazinone-derivative herbicide by applying to said site an effective amount of said herbicide. The invention further refers to plants comprising wild-type or mutated PPO enzymes, and methods of obtaining such plants.

Biofertilizer compositions, methods for increasing nitrogen levels in soil and methods of inhibiting undesirable plant growth generally include contacting the soil with a composition comprising dried distillers solubles derived from a dry milling corn ethanol processing; and contacting the soil with the soil in amounts effective to produce the desired result, e.g., increase nitrogen levels, inhibit undesirable plant growth, and the like.

Methods and compositions for environmentally-friendly weed control are provided. In particular, bioherbicide compositions are provided comprising plant extracts selected from Russian Olive, Austrian Pine, Tree of Heaven, Autumn Olive, and Black Walnut extract, either alone, or combination with at least one mulching substrate. Methods of using the herbicide compositions are also provided.

The present disclosure concerns specific Pseudomonas fluorescens and Pseudomonas putida strains, specific genes and their corresponding specific gene products, the specific bioherbicide molecules whose synthesis or secretion is controlled by those genes and gene products, and methods of using these molecules to control deleterious weeds.

The invention relates to a biochemical synergistic weed killer composition. The biochemical synergistic weed killer composition comprises effective constituents, auxiliaries and fillers. The effective constituents include sclerotium rolfsii and pretilachlor. The biochemical synergistic weed killer composition has the advantages that the two effective constituents, namely, the sclerotium rolfsii and the pretilachlor, are used with each other, accordingly, the biological weed killing performance of the sclerotium rolfsii which is a novel biological weed killer can be brought into play, fast-acting properties of the pretilachlor which is a chemical weed killer can be embodied, and weed killing effects can be improved; the most obvious synergistic effects can be realized by the sclerotium rolfsii and pretilachlor composition for preventing and killing diversified broad-leaf weeds and nutgrass flatsedge of dry and direct-seeded paddy rice; the service cost of the biochemical synergistic weed killer composition can be reduced, problems of high single-dosage service costs and poor low-dosage individual service effects of the sclerotium rolfsii and the pretilachlor at present can be solved, accordingly, prevention effects can be improved when the sclerotium rolfsii and the pretilachlor are used with each other, and the agricultural cost can be reduced.

Halogenated alkylsulfonanilide derivatives shown in formula (I): {wherein R1 represents haloalkyl; R2 represents H, alkylcarbonyl, optionally substituted phenylcarbonyl, alkoxycarbonyl, optionally substituted phenoxycarbonyl, Optionally substituted benzenesulfonyl and the like; R3 and R4 each represent H, alkyl, cycloalkyl, halogen, CN, etc.; R5, R6, R7 and R8 each represent H, halogen, alkyl, cycloalkyl, any Optionally substituted phenyl (C1-6 alkyl), optionally substituted heterocycle, etc.; A and W each represent O or S; and X represents 1-4 each selected from H, halogen, alkyl, alkenyl , optionally substituted phenyl, optionally substituted phenylalkylaminocarbonyl, OH, CN, etc.} and salts thereof; and herbicides containing any one of the aforementioned compounds as an active ingredient. The herbicide has excellent broad applicability, persistence and selectivity to crops, and is effective against various weeds. In particular, it can be excellently used as a herbicide for paddy fields.

The invention relates to a herbicide prepared by taking a lilac leaf extract as an active component as well as a preparation method and application of the herbicide. The herbicide prepared by taking the lilac leaf extract as the active component is prepared from the following components by mass percent: 70-80% of the active component and the balance of auxiliary components, wherein the auxiliary components comprise a surface active agent and filler. The components of the plant-derived herbicide provided by the invention originate from the plant bodies, and the bio-herbicide takes natural products as herbicidal active component, so that the herbicide is easily degraded and is safe and environment-friendly. The herbicide has a good prevention effect on gramineous and broad-leaved weeds, especially has a special effect for the broad-leaved weeds, and can be used as a selective herbicide for gramineous crops. Compared with the prior art, the plant-derived herbicide provided by the invention has the characteristics of being high in activity, remarkable in prevention effect, higher in selectivity, and the like. The herbicide has no harm to crops and no pollution to the environment, is free from pesticide residue, does not easily cause drug resistance, and is environmentally safe.