Plant Growth Promoting Rhizobacteria (PGPR) for Sustainable Agriculture
Journal Title: International Journal of Agricultural Science and Research (IJASR) - Year 2017, Vol 7, Issue 4
Abstract
As Green revolution’ seems to have started slowing down and in some cases crop yields have either remained stagnant or declined, besides causing other environmental health problems. For facilitating nutrient uptake and improving soil organic matter status, Plant Growth Promoting Rhizobacteria (PGPR) technology is widely recognized, offering the use of soil microorganisms in practicing sustainable and climate resilient agriculture, eliminating the use of chemical fertilizers and pesticides. PGPR is also proved to promote the activities of bioremediation and biodegradation of hazardous substances present in soil, air or water. It promotes plant growth and development by using their own metabolism through a variety of direct or indirect mechanism such as biological nitrogen fixation, increasing the availability of nutrients in rhizosphere, enhancing the absorption of iron through siderophore production and production of phytohormones. It also used as bio control agents (bio pesticides) providing resistance against plant pathogens by synthesising a variety of antibiotic and antifungal compounds. Thus, PGPRs can have wide applications in the restoration of waste lands and agricultural lands and can be named as sustainability indicator in terms of agriculture and environment as they are used as bio fertilizers, bio control agents and soil fertility improvers promoting agriculture in eco-friendly manner.
Authors and Affiliations
Rajani Srivastava, Anshika Singh
Keywords
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