IMPORTANT POINTS FROM CHAPTER : NATURAL RESOURCES...

NATURAL RESOURCES :

POINTS TO REMEMBER..

NITROGEN FIXING BACTERIA :

• AZOTOBACTER : bind Atmospheric Nitrogen and helps in Ammonification.
• DIAZOTROPHES : helps in changing nitrogen to ammonia.

         Types of Diazotrophes -

          (A) Free Living -

                Anaerobes, Aerobes, Bacillus Polymyxa, Anabaena Cylindrica

          (B) Symbiotic -

                Cyanobacteria, Rhizobia, Frankias

source : http://en.wikipedia.org/wiki/Nitrogen_fixing_bacteria

http://en.wikipedia.org/wiki/File:Soybean-root-nodules.jpg