01625naa a2200241 a 450000100080000000500110000800800410001910000170006024501580007726000090023552009580024465000120120265000130121465300150122765300120124265300100125465300130126465300120127765300110128970000220130070000190132277300420134116499642023-05-03       1962    bl uuuu     u00u1 u    #d1 aBROWN, M. E.  aStudies on azotobacter species in soil II. (Populations of azotabacter in the rhizosphere and effects of artificial inoculations).h[electronic resource]  c1962  aThe distribution of Azotabacter was studied in the rhizospore of some crop plants grown in this country. Any rhizosphere effect was very of some crop plants grown in this country. Any rhizosphere was very small and frequently Azotobacter was suppressed. No cells were recovered from root washings, indicating absence from the root surface. Azotobacter was absent from the rhizosphere in acid soils. Inoculation of seeds, roots, and soil resulted in establishment of high numbers of Azotobacter in the rhizospheres of plants grown in soil of pH above 6.5 and containing a natural Azotobacter population. Seed inoculation was the most practical and led to good establishment throughout the root system, including adventitious roots of wheat. The final population in the rhizosphere depended on the size and age of the initial inoculum applied to the seed. Best results came from spraying seeds with 14-day-old cultures and sowing the seed on the same day.  abananas  aBiologia  aBananeiras  aBiology  aCurse  aDiseases  aDoencas  aPragas1 aBURLINGHAM, S. K.1 aJACKSON, R. M.  tPlant and Soilgv.2, p.320-332, 1962.