37results about How to "Outbreak control" patented technology

The invention discloses a method to prevent tomato virus diseases. In the initial stage when a tomato suffers from virus diseases, an agentia with a length of 4 cm-5 cm is vertically coated on the stem of the tomato 2 cm-3 cm lower than a growing point of the tomato suffering from the virus diseases. The agentia is formed by 2% ningnanmycin wettable powder 33g, 80% ascorbic acid 10g, 98% burdock oligosaccharide 10g, 0.01% oxyenadenine water aqua 12.5 ml, organosilicone azone polymerization penetrant 0.6 ml and water 5 kg in a mixing mode. According to the method, traditional pesticide application concepts and operation techniques are changed, the defect that in an existing solar greenhouse and other protected areas, indoor humidity is increased through conventional spray is overcome, and the method has the advantages of being little in pesticide use amount, low in prevention cost, simple in structure and good in prevention effect. Compared with a traditional method that pesticides are applied on surfaces of leaves, the method enables yields to be increased by 18.5%-26.4%.

A probe, primer, kit, detection method and application for detecting the new coronavirus SARS‑CoV‑2, belonging to molecular biology nucleic acid detection technology, in order to solve the problem of realizing on-site detection and reducing the pollution that occurs during the detection process, improve Viral RNA detects sensitivity, the technical problem of specificity etc., the present invention provides a kind of probe and primer for detecting new coronavirus SARS-CoV-2 and the test kit containing above-mentioned probe and primer, also provides a kind of The whole closed-tube RNA exponential amplification method (WEPEAR method), the present invention realizes the detection sensitivity as low as 1ag (about 4 copies) to the N gene, realizes the detection sensitivity as low as 1 copy to the S gene, and also realizes the detection sensitivity at the same time The dual-gene simultaneous detection of viral nucleic acid RNA based on RT-RPA (or RT-ERA) can further improve the reliability of the test results, and can be used for on-site testing or home testing.

A method for controlling algae in a freshwater pond by cultivating striped mullets relates to a method for treating water. Aiming at the problem of frequent blooming of blue green algae in a eutrophic pond aquiculture water body, the striped mullets which belong to river mouth marine fishes and can only be reproduced in sea water are introduced to filter-feed on the algae and swallow detritus substances, so that the aim of continuously and thoroughly purifying a freshwater pond aquiculture environment is fulfilled. The method is characterized by comprising the following steps of: performing gradual desalting treatment on the striped mullets before cultivation to make the striped mullets adapt to the living environment of freshwater, wherein the age of each striped mullet is less than 24 months; transferring the striped mullets into a pond required to be purified by a keeping-alive transportation method; cultivating the striped mullets in the eutrophic freshwater pond; and catching thelarge striped mullets and keeping the small striped mullets year by year according to the density of the striped mullets in a water environment. By the method for controlling the algae in the freshwater pond by cultivating the striped mullets, the content of the algae in the eutrophic freshwater pond aquiculture water body is effectively reduced, nitrogen and phosphorus nutritive salts in the water and humus in a bottom material are brought out of the water body by harvesting reproduced striped mullets, the quality of the water body is greatly improved, and algae blooming is controlled.

The invention discloses a special aquaculture cleaning agent which is prepared from, by weight parts, 15-20 parts of cordate houttuynia, 0.3-0.5 parts of vanillin, 0.3-0.5 parts of thymol, 10-20 parts of diatomaceous earth, 20-30 parts of fan shell powder, 10-20 parts of modified flax powder, 35-40 parts of kaolin, 5-10 parts of activated carbon fiber, 17-20 parts of zeolite and 13-19 parts of freeze-dried duckweed powder. The special aquaculture cleaning agent can effectively remove dissolved pollutants in the aquatic water body, balance water body nutrition, improve water quality and water body transparency, control algae burst, improve water body dissolved oxygen, improve fish activity, further improve fish flesh quality, improve content of beneficial microorganisms in the water body, promote microecological balance, achieve stabilization of the aquatic water body and disease control, reduce aquaculture pollution, and improve quality and safety of special aquaculture aquatic products.

An artificial breeding method for roundmouth copperfish includes the establishment of key ecological factors in an ecological pond. The key ecological factors in the ecological pond include the control range of 10-100 mg / L for cultivating phytoplankton, the control range for cultivating zooplankton 3-10 mg / L, and the control range for water temperature. ≤32℃, dissolved oxygen control range 3-20mg / L, ammonia nitrogen control range ≤0.6mg / L, transparency control range 50-100cm, stocking density control range 50-300kg / mu. The advantage of the present invention is that, by regulating the key ecological factors of the ecological pond, the probability of outbreak of fatal infectious diseases in the process of artificial cultivation of the copperfish is reduced, and the artificial cultivation of the copperfish is realized, and the survival rate of the cultivation reaches more than 80%. Thereby changed mainly relying on medicine to treat fatal infectious disease method in the existing copperfish breeding process, the existing mainly to cure is changed to be based on prevention of the patent of the present invention.

The invention discloses a method for cutting off the propagation of infectious diseases of marspenaeus japonicas.The method includes the steps that a culturing pond is provided, wherein a beach face and an annular groove are formed in the culturing pond, the beach face comprises a sand layer, and pond water in the annular groove can be completely drained; marspenaeus japonicas are put into the culturing pond; in the first culturing period, pond water in the culturing pond is drained till the water level is flush with the beach face, wherein in the draining process of pond water, healthy marspenaeus japonicas can go into the sand layer, and pathogenetic marspenaeus japonicas and swimming aquatic animals can be drained into the annular groove along with water flow; a chemical is put into the annular groove for centralized sterilizing; after 2 hours to 3 hours, a collecting net is placed at a water draining opening of the annular groove, pond water in the annular groove is completely drained, and dead organisms are collected and deeply buried; filtered sea water is led into the culturing pond till the water level is flush with the beach face, the sea water in the annular groove is completely drained again, and finally filtered sea water is fed into the culturing pond till the water level of the beach face is 0.5 m-1.0 m.

The invention discloses a cultivation method for recovering abandoned a banana plantation to plant bananas. The cultivation method includes: clearing the overground part of bananas in the banana plantation, ploughing the underground part of the bananas and stirring uniformly; planting one-crop pineapples and managing the pineapples according to regular measures; harvesting pineapple fruits when the pineapples are ripe, ploughing other residues into soil and stirring uniformly; planting the bananas and managing the bananas according to regular measures, wherein the abandoned banana plantation is a plot in which a bananas morbidity of banana wilt is larger than 35%. The pineapples are simple to plant, applicable to large-area planting and good in economic benefits. During planting of the pineapples, the amount of pathogenic bacteria can be effectively restrained, pseudomonas with antagonism capability can be induced, and pseudomonas of soil can be improved. After the pineapple residues are ploughed into the soil, growth of hyphae and germination of spores of the pathogenic bacteria can be effectively restrained, outburst of the pathogenic bacteria is further controlled, and the bananas morbidity of banana wilt can be effectively reduced.

The invention relates to the field of aquaculture, in particular to a method for three-dimensional planting and breeding of pufferfish, Penaeus vannamei and water spinach. It consists of 8 production steps: daily management, growth monitoring, and harvesting. The invention changes the breeding mode of pufferfish with dark stripes, establishes a low-carbon, low-pollution and high-efficiency ecological three-dimensional planting and breeding mode of pufferfish with black stripes, establishes a multi-species and multi-trophic level pond ecosystem, and makes full use of the cultivation of pufferfish with black stripes. The water space of the pond improves the water utilization rate of the pond, reduces the production cost, and improves the economic benefit; improves the overall feed utilization rate of the pufferfish culture, reduces the total bait coefficient, reduces waste water discharge, improves the energy efficiency of aquaculture, and promotes the efficiency of fishery. , fishermen's income. In addition, the present invention is easy to operate and easy to be accepted and popularized by people.

The present invention proposes a California perch culture system and method. The system includes a pond, a sewage collection well and a water circulation device. The bottom of the pond is connected with a sewage pipe leading to the sewage collection well. There is a drainage pipe on one side and the bottom of the main well, an isolation filter layer on the top of the main well, and a manure outlet on the bottom. The manure outlet is connected to a manure pipe leading to the auxiliary well, and the end outlet of the manure pipe is higher than the main The excrement outlet at the bottom of the well; the outlet end of the sewage pipe is respectively connected with an upward-opening exhaust pipe and an auxiliary water outlet pipe. The water outlet pipe and the auxiliary water outlet pipe are connected to the auxiliary well, and the opening of the auxiliary water outlet pipe is inserted with a long pipe; the water circulation device includes a pond water pipe, a sewage collection well water pump, a sewage collection well water pipe, a circulating water pump, a microbial treatment tank and a return pipe, and the pond water The water from Heji sewage well is pumped to the microbial treatment tank for treatment and then returned to the pond, which solves the problem of the discharge of aquaculture sewage.