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146results about How to "Reduce abuse" patented technology

Machine vision based real-time diagnosis method and system of vegetable leaf diseases

The invention discloses a machine vision based real-time diagnosis method and system of vegetable leaf diseases. The system comprises a disease image acquiring hardware part and a real-time diagnosis software part, wherein the image acquiring hardware part consists of a lighting box, a light source bracket, a light source, a round hole at the top of a box body, a digital camera, a camera fixing rod, an optical lens, a polarizer, a box body side door, an objective table and a computer. The method comprises the following steps: acquiring the symptom image of the leaf disease of vegetable to be detected; carrying out image treatment and scab division by utilizing real-time diagnosis software; acquiring the characteristic indexes of scab, such as color, texture and shape; and carrying out real-time diagnosis on the vegetable leaf disease by utilizing a disease identification model. The real-time diagnosis method and system can be directly used for detecting diseases in filed, plastic houses or greenhouses so as to achieve the rapid, stable and real-time diagnosis of various vegetable leaf diseases; no chemical reagent is used, therefore detection cost is reduced and no environment pollution is caused. The real-time diagnosis method and system can be well applied to disease monitoring.
Owner:INST OF VEGETABLE & FLOWERS CHINESE ACAD OF AGRI SCI

Microbial population sensing signal molecule degrading bacterium and application thereof in disease prevention and control

The invention discloses a microbial population sensing signal molecule degrading bacterium and an application thereof in disease prevention and control. The degrading bacterium is a pseudomonas nitroreducens strain W-7, wherein the strain is preserved in China Center for Type Culture Collection on November 2, 2017 with preservation number of CCTCC NO: M2017649. The strain is stable in activity; the strain can grow by taking such population sensing signal molecules AHLs as OdDHL and the like as a unique carbon source, and the strain can take an obvious and rapid degrading effect on the signal molecules; meanwhile, the strain takes a relatively good degrading effect on other population sensing signal molecules such as OHHL and DSF; furthermore, the strain also has the characteristics of being simple in culture method, high in growth speed, not easy for variation and strong in adaptive capacity; and the strain has a huge promotion and application potential in such aspects as population quenching direction, inhibiting soft rot disease and preventing and controlling microbial population sensing signal mediated pathological disease harm. With the application of the degrading bacterium provided by the invention, the problem of abuse of pesticides can be relieved, and meanwhile, a new thinking can be prevented from biological prevention and control of plant diseases.
Owner:SOUTH CHINA AGRI UNIV

Bacteria drug-resistance detection system and operation method thereof

The invention discloses a bacteria drug-resistance detection system and an operation method thereof. The system comprises a drug sensitive test inoculation instrument, drug sensitive test image acquisition conversion equipment, a drug sensitivity detection kit and a bacterial strain culture device. A medium is arranged in the drug sensitivity detection kit. The drug sensitive test inoculation instrument is used for inoculating a bacterial strain into the drug sensitivity detection kit. The bacterial strain culture device provides a growth environment for the bacterial strain in the drug sensitivity detection kit. The drug sensitive test image acquisition conversion equipment is used for acquiring and converting images of the bacterial strain in the drug sensitivity detection kit. Management software is arranged in the drug sensitive test image acquisition conversion equipment, and the management software is connected to the network. With combination of online and offline, clinical medication is directly guided. The system meets on-site detection requirements, is convenient for data analysis and decision-making for a farm, a veterinary medicines factory and an administrative department, is suitable for current high-level drug resistance situation in our country, and satisfies the need of quantitative networked monitoring of drug resistance. A broth dilution method and an agar dilution method are both considered. The system meets different requirements of large-scale monitoring and scattered sample detection.
Owner:INST OF ANIMAL SCI & VETERINARY MEDICINE SHANDONG ACADEMY OF AGRI SCI

Submersible pump type multifunctional upper-lower water layer exchange machine

The invention relates to the technical field of aquaculture pond water quality ecological regulation, and provides a fishery machine used for promoting sufficient exchange of upper and lower bottom water in a culture pond. The machine comprises a submersible pump, a water delivery pipe, a cylindrical float, a spraying head, and the like. When working is started, the submersible pump draws bottom layer water and silt flocs, and the bottom layer water and silt flocs are sprayed through the spraying head and fall onto the water surface, such that upper and lower bottom water can be sufficiently exchanged. Through promoting the sufficient exchange of the upper and lower bottom water of the pond, phenomena of upper and lower water temperature stratification, upper and lower dissolved oxygen stratification and upper and lower pH stratification are broken through; a situation of lower bottom dissolved oxygen deficiency is ameliorated; water upper and lower pH values are kept balanced and stable; and accumulation of harmful substances such as nitrite, hydrogen sulfide, ammonia, methane and the like is effectively reduced. Also, pond bottom silt resuspension and re-release are promoted, such that rich nutrients and rich microbial populations in the sediment are released into water; algal and bacterial phase scientific management is facilitated; and pond ecological environment self-purification capacity is greatly improved.
Owner:蒋发俊

Slow-release organic fertilizer for plantation of kiwi and preparation method thereof

A slow-release organic fertilizer for plantation of kiwi is prepared from the following raw materials, by weight, 8-10 parts of perlite, 10-12 parts of rotten fruit and vegetable, 8-9 parts of chicken manure, 14-16 parts of attapulgite, 3-4 parts of EM biological strain, 2-3 parts of agar powder, 6-8 parts of dry pond sludge, 4-5 parts of magnesium sulfate, 4-6 parts of potassium permanganate, 3-5 parts of iron chloride, 6-8 parts of sodium humate, 8-10 parts of ammonium bicarbonate, 4-5 parts of an auxiliary agent and a proper amount of water. The organic fertilizer provided by the invention is a specially-designed fertilizer for plantation of kiwi. By compounding of perlite, the organic fertilizer with an adsorption function is prepared. The fertilizer is firstly ground to a sand shape and then is coated with a layer of agar membrane. Then, elements can effectively be absorbed, use of the fertilizer is minimized and soil hardening is prevented. By addition of magnesium sulfate, potassium permanganate, iron chloride, sodium humate and the like, contents of magnesium, potassium, iron and the like are supplemented for the fertilizer. By addition of acid, soil acidity can be improved. By the use of the organic fertilizer, abuse of fertilizer is minimized, and consumption of energy is also reduced.
Owner:赵刚

Multifunctional device for promoting exchange of upper and lower water layers and resuspension release of sediment

The invention belongs to the technical field of ecological regulation of aquaculture pond water quality and relates to fishery machinery used in promoting full exchange of upper and lower water layers of an aquaculture pond. During operation, a motor is started to drive centrifugal pump impellers to rotate through an output shaft so as to form pressure difference. Bottom water and sediment floccules are sucked up by a water inlet tap, then pass through a water delivery pipe, a centrifugal pump and a water outlet pipe, and finally are sprayed out through a spray-head onto the water surface. Thus, full exchange of upper and lower layers of a water body is achieved, and resuspension and re-release of sediment of the pond are promoted. By promoting full exchange of the upper and lower layers of a water body in the pond, the condition of insufficient dissolved oxygen at the lower water layer is improved, and accumulation of harmful substances such as nitrite, hydrogen sulfide, ammonia, methane and the like is effectively reduced. On the other hand, resuspension and re-release of pond sediment are promoted, thus releasing rich nutrient elements and abundant microbial populations in the sediment into the water body. The device of the invention is beneficial to scientific management of algal phase and bacteria phase, and self-purifying capability of a pond water-body is restored and enhanced.
Owner:蒋发俊
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