3 results about "Spirillum" patented technology

The application discloses a plant-source bio-growth-promoting synergistic fertilizer and a preparation method thereof. The fertilizer is prepared by compounding plant-source composite growth-promoting substances, a composite microbial flora and a carrier material in a specific mass ratio. The plant-source composite growth-promoting substances are prepared by solid-state fermentation and extraction of gynostemma pentaphyllum, astragalus and acanthopanax. The composite microbial flora contains brazilian nitrogen-fixing spirillum, fluorescent pseudomonas and brevibacillus brevis, and is embedded and fixed by using kappa-carrageenan microcapsules containing biochar nanoparticles. The carrier is lignosulfonate-modified nano-attapulgite. The application also provides a corresponding preparation method. The granular fertilizer is finally prepared through steps of activating the strains by a composite activation solution, embedding by microencapsulation and carrier loading granulation. The fertilizer combines the synergistic effect of plant-source active substances and functional microorganisms, significantly improves the activity of the flora and the field colonization capacity, and can effectively promote plant growth, improve crop yield and quality.

The application discloses a kind of biological microcapsules for repairing heavy metal pollution and its preparation method and application, the biological microcapsules are composed of core material and wall material;The core material includes bacillus subtilis, aspergillus niger, brazilian nitrogen-fixing spirillum and starch;The wall material includes modified polyethylene glycol and sodium alginate;The modified polyethylene glycol is prepared by polyethylene glycol, 2-[(tert-butyl) amino] acetyl chloride hydrochloride and 2-chloroethyl sodium sulfonate reaction.The biological microcapsules for repairing heavy metal pollution of the application can further enrich soil heavy metals by the high adsorption capacity and adsorption capacity of wall material, and significantly reduce the degree of soil heavy metal pollution by the excellent reduction and adsorption capacity of composite microbial agent, and can be widely applied in the field of soil heavy metal repair.

The application relates to a nitrogen-fixing spirillum (Azospirillum sp.) I102 with a preservation number of CGMCC No. 34685. Azospirillum The strain is a new species of the Azospirillum genus, can produce indole-3-acetic acid at a high yield, and can grow under the conditions of pH 5-9, NaCl concentration 0-4%, and temperature 20-42 DEG C. The strain has the abilities of nitrogen fixation, iron carrier production and urease production, and can resist heavy metals such as cadmium, copper and lead. The application also relates to application of the strain in promoting seed germination and plant growth, and the strain has a good application prospect in soil improvement, development of new biological organic fertilizer and the like.