摘要
Abstract
To analyze the microbial community of Eremurus anisopterus rhizosphere soil,provide ecological evidence of the adaptability of Eremurus anisopterus to arid desert,and supply necessary ecological data for the protection and utilization of the plant,measurement and analysis of soil microbial quantity,soil enzyme activity and nutrient content of the different ages of Eremurus anisopterus in the southern Gurbantunggut Desert was conducted.The results showed that the content and composition of rhizosphere soil microbes differed greatly at different ages,and the aging stage had the largest number of microorganisms as well as nutrients that can be beneficial to the growth of microorganisms.pH,catalase,invertase,neutral phosphatase of young stage,actinomycetes,phosphorus,organic matter,the total K of aging stage in the soil suggested rhizosphere negative effect.The number of microorganisms,enzyme activity and nutrient content of the other stages had obvious rhizosphere aggregation.Rhizosphere soil bacteria,fungi,actinomycetes,urease,invertase,organic matter,total nitrogen,total phosphorus and potassium had close correlations.Eremurus anisopterus of different ages all increased soil organic matter and nutrients,and the total amount of soil nutrients of rhizosphere was greater than that of non-rhizosphere soil and bare soil,which has promoted the accumulation of nutrients and improved the quality of the desert soil.关键词
异翅独尾草/根际/土壤微生物/酶活性/养分特征Key words
Eremurus anisopterus/rhizosphere/soil microbe/enzyme activity/nutrients分类
农业科技
