34 results about "Conservation ecology" patented technology

The invention discloses a factory production technology of amblyseius pseudocrinitum, comprising several steps of leaf mite host plant culture, leaf mite breeding, amblyseius pseudocrinitum factory production, product checking and finished product packaging. More than several hundred million amblyseius pseudocrinitum can be successfully bred by applying the method provided by the invention, large-scale factory production can be formed, the amblyseius pseudocrinitum is used as a natural enemy for preventing and treating harmful mites, the average control effect of the harmful mites can reach more than 90% by experiments in regions, such as Beijing and the like, the use quantity of an insect (mite) destroying agent can be lowered by about 50% every year, the preventing and treating cost canbe lowered by more than 50%, the yield and the quality of an agricultural product are obviously enhanced, and the invention is beneficial for protecting the ecological environment, reduces the pesticide residue in the agricultural product and creates a condition for the mass production of green and organic foods.

The invention discloses a method for identifying ecological risks of pesticides in water body, and belongs to the field of ecological risk identification. The method comprises the following steps: determining the types of the pesticides in the water body; screening representative biological species in an aquatic ecosystem; acquiring toxicity data of the pesticides in an area to be identified; andcalculating a concentration value HC5 for protecting 95 percent of the species in the aquatic ecosystem by a probability risk assessment method; calculating risk quotients of various pesticides and performing risk prioritizing; applying the toxicity data to the probability risk assessment method to calculate the total level of the ecological risks of the pesticides in the area to be identified; and identifying according to a result. The method combines the conventional risk quotient method and probability risk assessment method, and realizes the quantification of the total level of the ecological risks of the pesticides in the water body by screening the representative biological species in the aquatic ecosystem and utilizing less toxicity data so as to provide decisive basis for protecting the aquatic ecosystem.

The invention discloses an azoxystrobin-degrading bacterium as well as the bacterium agent produced therefrom and application thereof. The strain is Ochrobactrum anthropi SH14, which was deposited in China Center for Type Culture Collection (CCTCC) on December 20, 2013, and the preservation number is CCTCC NO: M 2013681. The strain can effectively degrade azoxystrobin pesticide residues in a short period of time, and can be used to restore natural environments such as water bodies and soils polluted by azoxystrobin. The preparation prepared by the bacterial strain has the advantages of low production cost, convenient use, good removal effect and the like. The use of this bacterial agent can reduce the residual amount of azoxystrobin in water and soil by more than 85% in a short period of time, effectively repair the natural environment polluted by azoxystrobin, solve the problem of excessive pesticide residues and environmental pollution in agricultural production, and protect the ecology environment and human health.

The invention discloses a tebuconazole pesticide-degrading bacterium, a soil bioremediation bacterium based on the bacterium and application thereof, belonging to the field of biotechnology. Its taxonomic name is Serratia marcescens H2 (Serratia marcescens H2). This strain is a Gram stain negative bacterium, and it is preserved in the China Center for Type Culture Collection (CCTCC), and the preservation number is CCTCC NO: M 2016478 , date of deposit September 13, 2016. The Tebuconazole Pesticide Residue Degrading Bacteria is a strain with strong degrading ability to Tebuconazole isolated from the soil where Tebuconazole has been used for many years through enrichment culture. The strain grows with Tebuconazole as the only carbon source. In the liquid medium, the activity of the bacteria is increased through the induction of tebuconazole, and the degradation ability of the tebuconazole is improved. The preparation method of the bacterial agent is simple, the cost is low, and the application is convenient. It can be scattered on the soil, and the degradation effect in the soil can reach 88%. important meaning.

The present invention provides a method and device for measuring the water-saving potential of an irrigation area based on big data. The method not only considers the saving of water resources, but also ensures the balance of the ecological environment of the irrigation area and surrounding areas of the irrigation area, and protects the ecological environment and species diversity. The original hydrological cycle of the irrigation area and its surrounding areas has been maintained. By selecting dominant species around the irrigated area as a mark, while implementing agricultural irrigation and water-saving development in the irrigated area, determine and evaluate whether the water-saving technical model (irrigation parameters) implemented in the irrigated area is reasonable or not according to the growth of the dominant species around the irrigated area. It destroys the balance of the surrounding ecosystem and species diversity, etc., which can effectively avoid the destruction of the ecological balance of the irrigated area and surrounding areas and the impact on species diversity caused by excessive water saving, and realize the effective implementation of the water-saving technology model in the irrigated area. Based on the evidence, reasonable agricultural water-saving technologies and management models can be selected to better promote local economic development and protect ecological balance.

The invention discloses an endogenous biocontrol strain for inhibiting Acanthopanax blight and its application. The endogenous biocontrol strain is Bacillus sp. SC‑JW‑14, which is preserved in China Microorganisms Preservation Management The General Microbiology Center of the Committee, the preservation address is No. 3, No. 1, Beichen West Road, Chaoyang District, Beijing, and the preservation number is CGMCC No.12921. The Bacillus sp. SC-JW-14 of the present invention can be used for the biological control of Acanthopanax blight, the antibacterial rate against Rhizoctonia solani can reach 69.6%, and the control effect can reach 59.4%. The present invention takes the pathogenic bacteria of Acanthopanax blight as the prevention and control object, isolates and screens the antagonistic endophytic strains existing in healthy plants Acanthopanax senticosus, lays the foundation for the biological control of Acanthopanax blight, and its rational application can reduce the number of chemical agents The environmental pollution caused is conducive to the protection of ecological balance, and can greatly improve and promote the artificial cultivation of Acanthopanax senticosus and the increase in income and production, which has certain research significance.

The invention relates to a technology for improving a saline and alkaline land and particularly relates to rhizobium and an application thereof. The rhizobium (Ensifersp.) YIC4027 has been collected in China General Microbiological Culture Collection Center (short for CGMCC and the address is No. 3, No. 1 yard, Beichen West Road, Chaoyang District, Beijing), and the collection number is CGMCC No. CGMCC 10994. The rhizobium has the advantages that the strain growth speed is fast, saline and alkaline resistance is achieved, effective symbiotic nitrogen fixation with sesbania can be achieved, the growth of the sesbania can be obviously promoted under the environment of greenhouses and large fields, the yield of above-ground parts and under-ground parts of plants can be obviously increased, and the yield and the quality of the sesbania are improved; the benefit for planting the sesbania to improve the saline and alkaline lands and other barren lands is achieved, the use of fertilizer is reduced, the environmental pollution caused by the fertilizer is reduced and finally the purposes of improving the saline and alkaline soil and barren soil, promoting ecological restoration and protecting the ecological environment are achieved.

The invention relates to a method for comprehensive prevention and control of plant diseases and insect pests in northern pear gardens. When flower buds of pear trees are just revealed, pesticide is applied for the first time, and the used pesticide is 5-degree lime sulfur. When 90% of flowers of the pear trees fall, the pesticide is applied for the second time, and the used pesticide is 20% acetamiprid powder or 48% chlorpyrifos emulsifiable concentrate. Before young pear fruits are bagged, the pesticide is applied for the third time, and the used pesticide is 5000 times of 10% imidacloprid or 4000 times of 1.8% abamectin emulsifiable concentrate and 1000 times of 70% thiophanate methyl wettable powder or 400-600 times of 70% atomized mancozeb wettable powder. The appropriate pesticide application time and appropriate pesticide are selected according to the plant diseases and insect pests at the stages, and only three-time pesticide application is needed. In addition, natural glass growing and corrugated paper binding on tree trunks in the gardens and the method for the comprehensive prevention and control of the plant diseases and insect pests are combined, the ecological environment is protected, natural enemies of the pear gardens are protected and utilized, and safe pear production is achieved.