37 results about "Noxious weed" patented technology

The invention discloses a microorganism and enzyme powder composite biological agent for a microbial organic fertilizer, which consists of 25 percent of various microbial agents, 23 percent of various bio-enzyme preparations, 30 to 35 percent of microbial nutrition agent, 5 percent of mordenite, 8 percent of dolomite, 3 percent of potassium fulvic acid, and the balance of water. The invention provides the microorganism and enzyme composite biological agent for promoting the high-quality and high-yield production of the microbial organic fertilizer, which is formed by compounding purely natural microorganism and enzyme, and integrates the advantages of the microbial agents and the enzyme preparation, and has the biocatalyst and biological degradation function; when used in a compost, the microorganism and enzyme composite biological agent accelerates the degradation speed of organic matters, makes the temperature of the composting materials rise in a short time (24 hours), eliminates the situations such as strong smelling and mosquitoes and flies breeding, and the like caused in the composting process of the biological organic raw materials, reduces the emission of massive pollution gases, and kills the noxious weeds, pathogenic bacteria and ova in the raw materials, and improves the content of organic matters of the composting product; improves the insect resistance capability of crops, and improves the soil degradation problems caused by the fertilizer.

The invention discloses a composite weedicide. The composite weedicide comprises a mixture of 95 percent fluroxypyr and 97.4 percent carfentrazone serving as effective ingredients; and the range of the weight ratio of the 95 percent fluroxypyr to the 97.4 percent carfentrazone is between 1:99 and 99:1. The invention also discloses a plurality of preparation formulations of the composite weedicide. In the invention, the 95 percent fluroxypyr and the 97.4 percent carfentrazone are compounded and mixed to serve as a wettable powder preparation, which can give play to the comprehensive advantages of the two medicaments. The composite weedicide can not only achieve the effect of weeding rapidly and radically, but also reduce the dosage and facilitate the use of a peasant. The harm of various broad leaf weeds in a paddy field, a wheat field and a corn field can be prevented by using the weedicide once; therefore, the dosage of the weedicide in the paddy field, the wheat field, the corn field and the like can be reduced; and the prevention and removal effects on noxious weeds can be improved.

The invention relates to a glyphosate water-based composition. The glyphosate water-based composition is characterized in that: the weight percentage of the glyphosate (based on glyphosate acid) in the composition is more than or equal to 20 percent; and the weight percentage of sulfate ions or hydrogen sulfate ions is more than or equal to 20 percent. The glyphosate water-based composition can be processed into an aqueous agent and a suspending agent. The composition has the advantages of promoting plants to adsorb and transmit the glyphosate, enhancing the herbicidal activity of the glyphosate, reducing the using amount of the glyphosate and having special effect of weeding noxious weed such as cogongrass, alligator alternanthera, scandent hop and the like.

The invention relates to a foliar saline spray solution for selective control of noxious weeds such as ragweed, poison ivy, dandelion, clover, bedstraw, wild parsley, millet, thistle, English daisy, plantain, ground-ivy, and knotweed. The invention also relates to a method for selective control of noxious weeds. In accordance with a preferred embodiment of the present invention, the solution comprises 8% to 12% weight to volume of a specific salt such as sodium chloride. The solution may further comprise an adjuvant such as a non-ionic surfactant.

The invention discloses a method for modifying the Tibet plateau alpine meadow grassland into mowing grassland. The method for modifying the Tibet plateau alpine meadow grassland into the mowing grassland comprises (1) a step of selection of the grassland, (2) a step of flattening of the ground, (3) a step of selection of resowing grass seeds and a mixing ratio, (4) a step of turf cutting and resowing, (5) a step of determination of fertilizer type and fertilizer amount, (6) a step of determination of irrigation method and irrigation amount, (7) a step of management, and (8) a step of mowing and harvest. The method for modifying the Tibet plateau alpine meadow grassland into the mowing grassland has the advantages that comprehensive modification measures can promote the growth of forage grass, especially irrigation and fertilization can promote the nutritional growth of the forage grass and restrain reproductive growth, so that the forage grass is tender in stalk and rich in foliage. Mowing can control the growth of noxious weeds, promotes compensatory growth or over-compensatory growth of fine forage. Through comparison, the height of a grass layer, and the yield and the quality of forage grass are all largely improved.

A method of controlling noxious weeds, particularly nutsedge (Cyperus spp) by soil solarization, comprising covering the soil with an effective thickness of a transparent, thermoplastic IR retentive film for a sufficient period of time to either kill or suppress the weeds. Also a field management method for the growing of cash crops susceptible to interference by noxious weeds comprising the steps of forming planting beds of soil; subjecting the soil to soil solarization; painting the film to terminate the solarization period; and transplanting cash crop.

The invention provides a glyphosate weeding composition containing a brassinolide compound. Effective ingredients of the glyphosate weeding composition include a glyphosate compound and a brassinolide compound. In the glyphosate weeding composition, the glyphosate compound is glyphosate acid or a herbicidal active derivative thereof, and the brassinolide compound is one or more of 24-hybrid epibrassinolide, 24-epibrassinolide, 28-epihomobrassinolide, 28-homobrassinolide and other brassinolide compounds. The mass ratio of glyphosate to brassinolide is 100:(0.01*10<-3>-10*10<-3>). The glyphosate weeding composition containing the brassinolide compound has the advantages that brassinolide and a glyphosate product are compounded, and the uptake and translocation effects of glyphosate in stems and leaves and the growth regulation effect of brassinolide are utilized and combined, so that the weeding composition has obvious synergistic effects, the initial weeding effect time is shortened for 2-4 days, the usage amount of a herbicide is reduced by 20-50%, and control effects on some noxious weeds are better. The weeding composition provided by the invention has the advantages of broad spectrum, high efficiency, low toxicity, little pollution, high effect taking speed, low cost and convenience in application.

The invention discloses a eupatorium catarium extract and an application thereof and belongs to the technical field of comprehensive development and utilization of weeds. The eupatorium catarium extract is prepared through steps of water boiling and filtration or is prepared through a reflux extraction process with a 70% ethanol water solution. The eupatorium catarium extract is simple in preparation method and can be used as an active pesticide component for prevention and treatment of field weeds and diseases and insect pests. The eupatorium catarium extract has high activity, is harmless to human body, can turn harmful weeds into economic crops, and can help people to remove non-field eupatorium catarium positively, thereby protecting environment.

The invention relates to a method for detecting a Solanum rostratum Dunal in plants and plant products by the PCR (Polymerase Chain Reaction) process, belonging to the field of toxic and harmful weed detection. In the method, two sets of primers are designed and combined and comprise a Solanaceae general primer and a Solanum rostratum Dunal specific primer, wherein the general primer is used for amplifying a Solanaceae plant gene group DNA and monitors the processes for extracting and amplifying the DNA, thereby avoiding false negative for detection; and the specific primer is used for the specific detection of the Solanum rostratum Dunal gene group DNA. The invention builds a modular detection method for the Solanum rostratum Dunal, which is quick, convenient, accurate and reliable and has strong specificity, and the whole detection can be finished within one working day.

The invention provides a glyphosate weeding composition containing uniconazole. Effective ingredients of the glyphosate weeding composition containing uniconazole include a glyphosate compound and uniconazole. In the glyphosate weeding composition, the glyphosate compound is glyphosate acid or a herbicidal active derivative thereof. The mass ratio of glyphosate to uniconazole is 100:(0.1-25). The glyphosate weeding composition containing uniconazole has the advantages that uniconazole and a glyphosate product are compounded, and the uptake and translocation effects of glyphosate in stems and leaves and the growth regulation effect of uniconazole are utilized and combined, so that the weeding composition has obvious synergistic effects, the initial effect time is shortened for 2-5 days, the usage amount of a herbicide is reduced by 20-50%, and control effects on some noxious weeds are better. The weeding composition provided by the invention has the advantages of broad spectrum, high efficiency, low toxicity, little pollution, high effect taking speed, low cost and convenience in application.

The invention is a completely biodegradable, bio-based plant and seedling mulching device that inhibits the growth of noxious weeds while allowing the flow of water to the root zone of the plant or seedling.

The present invention relates to a method for protecting plants or plant protection material against attack or infestation by insects, fungi, arachnids, nematodes and harmful weeds by treating roots/buds/seeds/soil with active compounds in combination with enzymes.

The invention discloses a weed killer for preventing and killing weeds in a wheat field. The weed killer consists of 3,7-dichloroquinoline-8-carboxylic acid or salt of the 3,7-dichloroquinoline-8-carboxylic acid, which serves as an active ingredient, and a pesticide aid, wherein the mass content of the active ingredient is 1-95 percent. The weed killer for preventing and killing the weeds in the wheat field particularly has a remarkable effect of preventing and killing barnyard grass in the wheat field, and can be used for preventing and killing noxious weeds such as digitaria sanguinalis, eclipta prostrate and setaria viridis.

The invention discloses a method for identifying barnyard grass of a rice field by utilizing a hyperspectral imaging technology, and belongs to the technical field of identification and early warningof noxious weeds in rice fields. The method comprises the steps of planting germplasm resources of rice and barnyard grass; selecting the rice and the barnyard grass, and acquiring spectral data through a hyperspectral imaging system; taking the spectral data as a model input variable, performing image calibration and image processing through computer software to obtain the average reflectivity ofthe whole leaf, and after signal denoising, selecting a special spectrum to build a discrimination model; and carrying hyperspectral imaging equipment by an unmanned aerial vehicle to collect spectral data of a large-area rice zone, and finally calculating the occurrence rate of the barnyard grass to evaluate the harm degree. The barnyard grass of the rice field is identified by adopting the hyperspectral imaging technology; by utilizing a difference characteristic of the rice and the barnyard grass, the barnyard grass and the rice are distinguished; six main wave spectral characteristics arescreened, so that the calculation is reduced and the accuracy is up to 98.1%; and an unmanned aerial vehicle carrying technology can be used for carrying out high-altitude operation, so that a spectral data result can be rapidly and non-destructively acquired in a large-area manner.