Legume plants with no nodules or with nodules containing
ineffective bacteria are common causes of low
production or complete failures of alfalfa and clover
plantings in Oregon. These failures result in the loss
of the stand plus the investment in fertilizer and seed
used to make the planting. In many...
Although the biology of Bradyrhizobium has been studied for almost
one hundred years, virtually nothing is known about the ecology and genetic
variation in natural soil populations of this genus. The majority of
information has been obtained from studies of one species, Bradyrhizobium
japonicum, and the diversity within soil populations...
Published April 1980. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog