1. Van Ittersum MK, Cassman KG, Grassini P, Wolf J, Tittonell P, Hochman Z (2013) Yield gap analysis with local to global relevance—a review. Field Crop Res 143:4–17
2. Singh P, Vijaya D, Chinh NT, Pongkanjana A, Prasad KS, Srinivas K, Wani SP (2001) Potential productivity and yield gap of selected crops in the rainfed regions of India, Thailand, and Vietnam. International Crops Research Institute for the SemiArid Tropics, Andhra Pradesh, India
3. Pimentel D (2009) Pesticides and pest control. In: Peshin R, Dhawan A (eds) Integrated pest management: innovation-development process. Springer, Dordrecht, pp 83–87
4. Hussein KA, Joo JH (2015) Isolation and characterization of rhizomicrobial isolates for phosphate solubilization and indole acetic acid production. Appl Biol Chem 58:847–855
5. Lee Y, Krishnamoorthy R, Selvakumar G, Kim K, Sa T (2015) Alleviation of salt stress in maize plant by co-inoculation of arbuscular mycorrhizal fungi and Methylobacterium oryzae CBMB20. Appl Biol Chem 58:533–540