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The legume crops have a unique capacity of utilizing atmospheric nitrogen through nitrogen fixing bacteria (Rhizobium spp.) in the root nodules. The local strains of Rhizobium may not be efficient. It is, therefore, recommended to artificially inoculate the seeds with an appropriate strain of Rhizobium. The artificial inoculation is very cheap and it increases the efficiency of the plant to fix free element nitrogen from the atmosphere. Inoculation serves as an insurance for getting good pulse crops.
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