Sinorhizobium meliloti and application thereof

Abstract

The invention discloses sinorhizobium meliloti and application thereof and belongs to the field of agricultural microorganism application. The sinorhizobium meliloti is preserved in the Common Microorganism Center of China Committee for Culture Collection of Microorganisms, the preservation number is CGMCC No. 11589, the preservation date is 25, November, 2015, and the preservation address is No. 3, courtyard 1, Beichen Rd, Chaoyang District, Beijing City. Through combined use of a sinorhizobium meliloti microbial agent and a protective agent, the nodulation rate and yield of domestic medicago sativa can be remarkably raised, and in particular, the nodulation rate of the domestic medicago sativa at the seedling stage is remarkably raised. Raising of the nodulation rate at the seedling stage shows that the sinorhizobium meliloti can enhance nodulation fixation rate and competitiveness of the inoculation microbial agent. Meanwhile, as the nodulation rate is raised, nitrogen fixation efficiency is also improved, and the plant height and yield are remarkably increased.

Description

technical field [0001] The invention belongs to the application field of agricultural microorganisms, and relates to a rhizobia strain of alfalfa and a method for improving the nodulation rate and yield of domestic alfalfa by using the same. Background technique [0002] Alfalfa (Medicagosativa) is a perennial herbaceous leguminous plant. Because of its strong stress resistance, wide distribution, large cultivation area, high yield, good quality, multiple utilization methods, good palatability and high economic value, it has the advantages of other legumes. There are many advantages that pasture cannot match. At the same time, it is also the earliest and most widely distributed leguminous forage in the world, and it can be called the "king of forage". There are 65 varieties of Medicago in the world, and in my country there are mainly: wild species, local varieties, bred varieties, introduced varieties and annual species. Alfalfa is mainly distributed in Europe, Asia and Af...

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Problems solved by technology

[0004] Although the current domestic alfalfa has the advantage of being more suitable for domestic planting, but is facing the situation of low per unit yield and low nodulation rate, the present invention provides a strain of Rhizobium alfalfa and its application

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