30results about How to "Improve self-resistance" patented technology

The present invention provides a root-knot nematode-related miRNA and its regulation gene, protein and application. The miRNA is miRcn1, and the gene regulated by miRcn1 includes CRF9; Root-knot nematode: the present invention proves through experiments that miRNA miRcn1 and its target gene CRF9 play an important role in preventing and controlling root-knot nematode. Overexpression of miRNA miRcn1 and silencing of target gene CRF9 can improve plant resistance to root-knot nematode.

The invention discloses a method for preventing diseases and insect pests of allium fistulosum. The method comprises the following steps of conducting intensive soil preparation, removing residues of preceding crops, applying 4-6kg of pesticide of which the Chinese name is called 'Guandaodi' to each Mu of field, constructing ridges, and spraying and applying 20-30kg of an algae microorganism agent to each Mu of field along with water manure; strengthening cultivation management, removing weeds in time, and spraying and applying the algae microorganism agent to improve the disease resistance of allium fistulosum seedlings; eliminating ill residual bodies, cleaning fallen leaves of allium fistulosum in time after each time of artificial seedling regulation to prevent spread and dissemination of pathogenic bacteria, and applying a bactericide once subsequently; and conducting regular prevention and control by using agents, and spraying and applying agents to seedlings in four stages, namely newly sprouted seedlings, seedlings of which the second leaf newly emerges, post-stage medium seedlings and large seedlings to be transplanted. Compared with the prior art, the method has the advantages that most diseases and insect pests which easily occur in the process of industrially breeding allium fistulosum can be prevented, the incidence of allium fistulosum in the seedling stage can be remarkably reduced, the survival rate of allium fistulosum seedlings can be increased, and loss caused by diseases and insect pests can be reduced.

The invention discloses a red-soil-region peanut continuous-cropping obstacle reducing special fertilizer, a preparation method and a usage method. The special fertilizer is composed of, in percent by weight, 10-30% of decomposed dry bird excrement, 10-30% of humic acid, 10-20% of urea, 20-40% of calcium-magnesium-phosphorus fertilizer, 10-15% of potassium chloride, 0.5-2% of borax, 0.5-2% of zinc sulfate, 0.01-0.05% of ammonium molybdate, 0.005-0.02% of compound sodium nitrophenolate, 0.001-0.01% of sodium alpha-naphthyl acetate, 0.01-0.05% of hymexazol, and 0.01-0.05% of diazinon. The special fertilizer is applied red-soil-region field on which peanut is continuously cropped for three or more years with the usage amount of 2000-2500 Kg / hm<2>, the usage method comprises that the fertilizer is completely basally applied for one time, or the fertilizer is applied for two times according to the base-fertilizer topdressing-fertilizer weight ratio of 2:1, the base fertilizer is applied in furrows before peanut is sowed or is spread over the whole field when ploughing is performed, topdressing is combined with intertillage weeding, and fertilization and earthing up are performed. The special fertilizer is verified to be capable of increasing peanut output by 15-25% compared with a conventional fertilizer by applying the special fertilizer to a large field on which peanut is continuously cropped for 10 years or more at 2012 and 2013, and the application method is simple, reasonable, and high in operability, and exhibits technical progress.

The invention discloses a method for ecological simulation preservation of nostoc sphaeroids kutz. The method comprises the following steps: removing damaged nostoc sphaeroids kutz, sterilizing the surface of the nostoc sphaeroids kutz, preparing soil extract, preparing agar, paving and receiving light. The method keeps the physiological activity of the nostoc sphaeroids kutz by simulating the ecological environment of the nostoc sphaeroids kutz, and improves the resistance capacity to the external environment, thereby achieving the purpose of preservation. During the process of adoption of the method, the nostoc sphaeroids kutz absorbs nutrition and water in the agar, performs photosynthetic growth through supplemented light sources, and maintains the original physiological activity, andmeanwhile promotes the accumulation of biomass; within an appropriate temperature range, the physiological activity of the nostoc sphaeroids kutz is maintained, a temperature control link can be canceled at normal temperature, added nutrition is extracted from soil, and the cost is lower; the method is simple to operate, convenient and effective, and ensures that the quality guarantee period of the nostoc sphaeroids kutz can reach 90 to 100 days. Preservatives are not required to be added during the process of preservation, and the method belongs to a green and safe preservation method.

The invention relates to a plant growth regulator. The plant growth regulator comprises the following raw materials by weight percent: 25-40% of a compound microorganism bacterium agent, 20-40% of plant tea cypress extract, 25-35% of yeast waste liquid and 10-20% of compound amino acid solution. According to the plant growth regulator, plants can be effectively promoted to improve the resistance, phytotoxicity and fertilizer damage are eliminated, the generation of fruit-vegetable crop diseases such as root rot, damping off, gummy stem blight, downy mildew, epidemic disease, powdery mildew, stalk break, verticillium wilt, stem rhizoctonia rot, fruit rot, bacterial wilt, deficiency disease, virus disease and root-knot nematodes caused by fungus, bacteria and virus is inhibited, original quality and mouthfeel of crops are restored, and the problems of high residuals for nitrite and heavy metals such as plumbum, arsenic, cadmium and mercury are thoroughly solved.

The invention discloses a microbial inoculum with anti-tumor activity and a method for preparing a fermentation composition by using the microbial inoculums. The microbial inoculum comprises a strainof Lactobacillus crispus, and the preservation number of the strain is CGMCC No.6364. Preferably, the microbial inoculum also comprises forsythia hexanetetrol, and the molecular formula of the forsythia hexanetetrol is C7H15O. The microbial inoculum not only has probiotic activity of lactic acid bacteria, but also has obvious anti-tumor activity. The microbial inoculum is very safe, is a drug withan immunity enhancement function and a function of a biological response regulator, improves the pathological state of the organism, increases the self disease resistance of the organism, and achieves anti-tumor activity through the mechanism.