1. Abd-Alla MH (1994) Phosphatases and the utilization of organic phosphorus by Rhizobium leguminosarum biovar viceae. Lett Appl Microbiol 18:294–296
2. Abrol IP, Yadav JSP, Massoud FI (1988) Salt-affected soils and their management (No. 39). Food & Agriculture Organization of the United Nations, p 14
3. Acharya CL, Sharma AR (2007) Management options for increasing nitrogen use efficiency. Agric nitrogen use and its environmental implications. I.K. International Publishing House, India, p 213
4. Adesemoye AO, Kloepper JW (2009) Plant–microbes interactions in enhanced fertilizer-use efficiency. Appl Microbiol Biotechnol 85(1):1–12
5. Akhter MS, Hossain SJ, Amir-Hossain SK, Datta RK (2012) Isolation and characterization of salinity tolerant Azotobacter sp. Greener J Biol Sci 2:42–051