7 results about "Autotoxicity" patented technology

The invention discloses a planting method for overcoming continuous cropping obstacles of silage corn, which solves the problems of soil degradation and diseases and insect pests caused by continuous cropping by integrating soil physical remediation, chemical remediation, biological remediation, microbial community regulation and ecological intercropping technologies. The core technology content comprises the steps that deep ploughing is combined with organic matter and a biochar modifier to repair the soil structure, a compound microbial agent is sprayed to inhibit pathogenic bacteria, leguminous green manure and commercial crop rape are used for improving nitrogen circulation and reducing the autotoxicity effect every two years, and a precise fertilization management technology is matched. After the scheme is implemented, the soil health condition is remarkably improved, the silage corn yield is remarkably increased, and good ecological and economic benefits are achieved.

The invention discloses streptomyces obscura QS2-7 and application thereof, and belongs to the technical field of microorganisms. According to the invention, a strain of Streptomyces caniferus QS2-7 is obtained through separation, and the preservation number of the strain is CGMCC (China General Microbiological Culture Collection Center) No.32328. Experiments show that the strain QS2-7 has a relatively strong inhibition effect on various plant pathogens, and has excellent biocontrol bacterium potential. And the strain has the functions of nitrogen fixation, phosphorus solubilization and protease production, and can effectively degrade autotoxic substances generated by plant planting and relieve autotoxicity. The strain can significantly promote plant growth and effectively reduce the incidence rate of diseases, and has high application value in green prevention and control of plant diseases and continuous cropping production.

The invention discloses a bacillus velezensis strain and application thereof. The invention discloses bacillus velezensis WLH (bacillus velezensis), and the preservation number of the bacillus velezensis WLH is CCTCC (China Center for Type Culture Collection) NO: M 20251238. The bacillus velezensis WLH is screened from rhizosphere of cucumber, the WLH is a biocontrol bacterium, can inhibit growth of pathogenic bacteria of cucumber root rot and fusarium wilt by degrading phenolic acid in soil and promote growth of cucumber plants, and the strain can relieve autotoxicity caused by the phenolic acid, inhibit the cucumber root rot and fusarium wilt and promote growth of cucumber plants. The promotion of crop growth comprises the capability of producing indoleacetic acid (IAA) and the capability of solubilizing phosphate, the promotion of germination of cucumber seeds under the stress of mixed phenolic acid and pathogenic bacteria, and the promotion of growth of cucumber seedlings under the stress of mixed phenolic acid and pathogenic bacteria. Soil continuous cropping obstacles generated in cucumber planting are effectively relieved, and a new basis is provided for microbial control of continuous cropping obstacles.

The application discloses a Streptomyces caniferus QS2-7 and application thereof, and belongs to the technical field of microorganisms. The application separates and obtains a Streptomyces caniferus QS2-7 with a preservation number of CGMCC No.32328. Experiments show that the strain QS2-7 has a strong inhibiting effect on various plant pathogenic bacteria, and has superior biocontrol potential. The strain has the functions of nitrogen fixation, phosphorus solubilization and protease production, can effectively degrade autotoxic substances generated in the process of planting plants, and can relieve autotoxicity. The strain can significantly promote the growth of plant plants, effectively reduce the incidence of diseases, and has high application value in green control of plant diseases and continuous cropping production.

The invention provides a method for inhibiting astragalus mongholicus / liquorice seed germination and seedling growth, and relates to the technical field of agricultural biology.The astragalus mongholicus / liquorice seeds are subjected to seed soaking treatment through swainsonia salicina leach liquor so as to inhibit astragalus mongholicus / liquorice seed germination. Or the Mongolian milkvetch root / licorice root seed seedlings are irrigated with swainsonia solani leach liquor to inhibit growth of the Mongolian milkvetch root / licorice root seedlings, the swainsonia solani leach liquor is derived from stems or leaves of swainsonia solani, and the concentration of the swainsonia solani leach liquor is 40 g / L; astragalus mongolicus and licorice root cause continuous cropping obstacles due to allelopathic autotoxicity and affect follow-up crop planting, seed germination and seedling growth are inhibited by the swainsonia solani leach liquor, inhibition of residual allelopathic substances of preceding crops on succeeding crops can be reduced, an effective means is provided for overcoming the continuous cropping obstacles, and sustainable intensive utilization of cultivated land is achieved.

The application belongs to the technical field of microbial application, and provides a strain of sphingomonas yanoikuyae with a preservation number of CGMCC No.28289.The strain can effectively degrade peanut phenolic acid allelochemicals, alleviate autotoxicity, and antagonize peanut soil-borne pathogenic bacteria, and can alleviate peanut continuous cropping obstacles.

The invention discloses a method for relieving capsicum autotoxicity effect, promoting plant growth and development and increasing yield and improving quality of fruits based on exogenous silicon, which comprises the following steps: selecting capsicum seeds, soaking the capsicum seeds in warm water at 55 DEG C for 30 minutes, accelerating germination, sowing the seeds in a 72-hole tray after the seeds are white, transplanting seedlings into a nutrition pot filled with a substrate when three leaves and one core are formed, and transplanting the seedlings into a seedling tray after the seedlings are grown; the growth environment temperature is 26 DEG C / 16 DEG C, the photoperiod is 12 h / 12 h, 5 days after seedling recovery, 1 / 2 of a Japanese Kawasaki pepper nutrient solution is used as a solvent for root application of phthalic acid (PA) to induce autotoxicity stress of the peppers, meanwhile, the nutrient solution is used as a solvent for root application of exogenous nano SiO2, and the treatment capacity of each time of irrigation is 150 mL. After the flower stage is started, the nutrient solution is doubled, and the irrigation treatment capacity of each time is changed to 300mL. The root application of exogenous nano SiO2 can effectively promote the growth and development, photosynthetic process, oxidation resistance, water metabolism, carbon and nitrogen metabolism and mineral element absorption of pepper plants under autotoxicity stress, promote the growth and development, yield increase and quality improvement of pepper fruits, and significantly relieve the autotoxicity stress degree of PA on pepper.