6results about How to "Improve nitrogen fixation capacity" patented technology

The application provides a cold-adapted straw degrading and nitrogen-fixing composite microbial agent, a preparation method and application thereof, and belongs to the technical field of agricultural microorganisms.The cold-adapted straw degrading and nitrogen-fixing composite microbial agent comprises Acinetobacter guillouiae JIA101, Paenibacillus polymyxa JIA102, Raoultella sp.JIA201, Cellulosimicrobium cellulans JIA202 and Raoultella sp.JIA203.The composite microbial agent has high enzyme activity, straw degrading capacity and nitrogen-fixing capacity, and is suitable for a low-temperature environment.Pot experiment results show that under the condition of 10 DEG C, the microbial agent can significantly promote straw degradation, the straw degradation rate in soil reaches 44.99%, and is increased by 88.49% compared with a control group;and the treatment can effectively improve the soil nutrient and organic matter content.The application provides technical support for straw returning to field and soil fertilization under a low-temperature environment.

In view of the problem of the prior art that with the increase of the fertilizer amount, the nitrogen content of the root system gradually increases, the peanut root system gradually reduces the nitrogen fixation capacity, and the fertilizer utilization rate is reduced and the environment is polluted, according to the biological characteristics that peanuts can produce root nodules to fix nitrogen, the application provides a kind of small molecule protein for improving peanut nitrogen fixation and yield and application thereof, the small molecule protein is any one or combination of two or more of 10 kinds of small molecule proteins (ENFP-1 to ENFP-10), and when used, an ENFP aqueous solution containing a Silwet series organosilicon surfactant is prepared. The experiment proves that: leaf spraying ENFP solution can significantly increase the number of peanut root nodules, improve the nitrogen fixation capacity of peanuts, increase the nitrogen content of peanut leaves, and can increase the yield of peanuts, and has a significant yield-increasing effect.

The invention relates to a method for promoting growth, nodulation and nitrogen fixation of indigofera pseudotinctoria by utilizing rhizobium D303 and a bacterial solution thereof. The biological preservation number of the rhizobium sp. D303 is CCTCC (China Center for Type Culture Collection) NO: M20252803. Pot culture tie-back tests prove that the indigofera pseudotinctoria seedlings inoculated with the rhizobium are obviously superior to a control group in the aspects of plant height, root length, overground dry weight, underground dry weight, root nodule number, root nodule weight, root nodule diameter, nitrogenase activity, antioxidant enzyme activity and the like. The rhizobium strain provided by the invention has efficient nodulation and nitrogen fixation capability and excellent growth promoting characteristic, obviously improves the growth speed, nodulation capability and nitrogen fixation efficiency of the indigofera pseudotinctoria, reduces the dependence on chemical nitrogen fertilizer, and has a broad application prospect in development of special biological bacterial fertilizer for indigofera pseudotinctoria. The method has important ecological and economic benefits for promoting the application of the indigofera pseudotinctoria in ecological restoration and feed production, and is suitable for slope greening, water and soil conservation and barren mountain ecological restoration projects.

The present application relates to the technical field of compound planting, in particular to a kind of southern winter idle field green manure optimization configuration efficient compound planting method, including step one, astragalus sinicus seed and rape seed banding sowing;Step two, astragalus sinicus seed and rape seed sowing promote growth treatment;Step three, astragalus sinicus and rape harvesting treatment;Step four, astragalus sinicus and rape crushing and turning back to field;Step five, strengthen and promote the management.Compared with prior art, a kind of southern winter idle field green manure optimization configuration efficient compound planting method is proposed in the present application, compared with traditional simple mixed sowing, in the yield of subsequent crop rice, rape straw decomposition rate, astragalus sinicus straw decomposition rate, >2mm soil aggregate formation, soil organic matter content and so on, there is greater improvement, it can be seen that the green manure optimization configuration efficient compound planting method is more conducive to soil fertilization and improve the yield of subsequent crop rice.

The present application relates to a kind of ecological soil capable of in-situ soil formation quickly and its preparation method and application.The ecological soil is composed of multi-source waste base and microbial inoculum;The mass ratio of multi-source waste and microbial inoculum is (18-20):1;Multi-source waste base is selected from one or more of coal gangue, fly ash, corn straw, cow dung and sugarcane residue;Microbial inoculum is composed of simple wheel branch bacteria fermentation liquor, fusarium fermentation liquor, spiral branch mould fermentation liquor, red ball bacteria fermentation liquor and green needle pseudeomonas fermentation liquor.The present application efficiently utilizes the waste generated by industrialization and urbanization, and on the basis of waste and microbial inoculum, realizes the synergistic efficient resource of multi-source waste, and the soil matrix prepared by composting is loose, rich in plant essential nutrients, and has strong water retention, has the advantages of promoting plant growth, strengthening ecological restoration, etc., and is suitable for mining subsidence area, reclamation site, sandy or saline-alkali farmland, facility agriculture and ecological greening fields.

This invention relates to the field of agricultural fertilizer technology, and discloses a functional compound fertilizer containing a soil conditioner and its preparation method. The fertilizer provided by this invention is composed of nitrogen, phosphorus, and potassium sources, a compound soil conditioner, microencapsulated functional microbial agents, chelated trace elements, and a slow-release coating agent. The preparation method includes raw material pretreatment, step-by-step mixing, granulation, and coating processes. The fertilizer provided by this invention addresses the shortcomings of existing banana-specific fertilizers, such as poor synergy between soil conditioning and nutrient distribution, mismatch between fertilizer release and growth cycle, and limited stress resistance. It can precisely improve acidic banana plantation soil, achieve dynamic nutrient release, improve fertilizer utilization, reduce the incidence of banana wilt disease, significantly increase yield and fruit quality, is suitable for various cultivation models, and possesses both practical and environmental value.