Answers

2016-04-15T20:50:32+05:30
The root of leguminous plants contains nitrogen fixing bacteria such as Rhizobium,this bacteria use to convert atmospheric nitrogen into nitrate so that plant can absorb the nitrate and use them. hence leguminous plants help in replenishing the soil.
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2016-04-18T16:26:40+05:30
Bacteria such as rhizobium ,is able to convert atmospheric nitrogen into nitrate and as the plants cannot take atmospheric nitrogen so the bacteria help them and atmospheric nitrogen into soluble nitrogen.They are present in root nodules of leguminus plant 
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