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The Fabaceae or Leguminosae, commonly known as the legume, pea, or bean family, are a large and economically important family of flowering plants. It includes trees, shrubs, and perennial or annual herbaceous plants, which are easily recognized by their fruit (legume) and their compound, stipulate leaves. Many legumes have characteristic flowers and fruits. The family is widely distributed, and is the third-largest land plant family in number of species, behind only the Orchidaceae and Asteraceae, with about 751 genera and about 19,000 known species. The five largest of the genera are Astragalus (over 3,000 species), Acacia (over 1000 species), Indigofera (around 700 species), Crotalaria (around 700 species), and Mimosa (around 400 species), which constitute about a quarter of all legume species. The ca. 19,000 known legume species amount to about 7% of flowering plant species. Fabaceae is the most common family found in tropical rainforests and in dry forests in the Americas and Africa.
Synthetic bacterial flora for strengthening biological nitrogen fixation in karst pasture and construction method and application thereof
This invention belongs to the field of microbial technology and discloses a synthetic microbial community for enhancing biological nitrogen fixation in karst grasslands, its construction method, and its application. The synthetic microbial community includes... Sinorhizobium americanum , Sionrhizobium sp. as well as Bacillus cereus Wherein: the Sinorhizobium americanum The accession number is GDMCC NO: 67796; Sionrhizobium sp. The accession number is GDMCC NO: 67797; Bacillus cereus The accession number is GDMCC NO: 67798. For leguminous forage grasses that require repeated sowing, the seeds are treated with a synthetic microbial community before being sown in the field; for perennial leguminous forage grasses that have already been planted, the synthetic microbial community is diluted with water and sprayed onto the surface of adjacent leguminous forage grasses. This invention screens out suitable and efficient root nodule endophytic bacteria in karst areas and constructs a synthetic microbial community to enhance the biological nitrogen fixation of leguminous forage grasses. It clarifies the technical details of the practical application of the synthetic microbial community in the field. The application of this technology can significantly improve the biological nitrogen fixation rate of leguminous forage grasses, significantly reduce the amount of nitrogen fertilizer used in forage grasses, and significantly increase forage grass yield.
Owner:INSTITUTE OF SUBTROPICAL AGRICULTURE CHINESE ACADEMY OF SCIENCES