ISOLATION OF NODULE BACTERIA FROM PISUM SATNUM AND THE APPLICATION OF NITRAGIN FROM THE ISOLATE
荷兰豆根瘤菌的分离、鉴定及其菌剂的研制和应用

An isolate from nodules of garden pea (Pisum sativum L.) was tested on different varieties of garden pea in various soil types. Effective nodules were produced by the nitragin prepared from the isolated nodule bacteria. The bacterial strain isolated was a strain of Rhizobium sp., and was effeCtive on many varieties of garden pea in different types of soil environment in Guangdong Province. The nodulation rate reached 100% in pot experiment, and above 90% in field Plots. After being inoculated with the bacterial strain, the garden pea grew more strongly and healthy with more branches, more effective flowers, and increased the number of pods with high quality. The application of this nitragin to the garden pea in the field increased pod yield by 14%.