| With horsebean’s nodule collected from Gansu, 11 strains of horsebean rhizobium were obtained by plate
cultivation method with selective culture medium, and 7 strains (G1, G2, G6, G7, G8, G10 and G11) were selected
by experimentation of cultivation with vermiculite and soil. The results showed that they could enhance the symbiotic ni-trogen fixation and have high value in production. |