Organic Farming: Role of Microorganism
DOI:
https://doi.org/10.70130/CAST.2021.1104Keywords:
organic farming, agroecosystem, biofertilizersAbstract
The consumption of chemical fertilizers in India is increased, over the last three decades. These chemical fertilizers are used to enhance plant growth and productivity of the crop. But they are very toxic to our health because chemical fertilizers possess many types of chemical compounds like chromium, zinc, coppers, cobalt, cadmium, aluminum, lead and so on. Therefore continuous consumption of fertilizers may cause various type of serious diseases such as hypertension (High BP), hemoglobin deficiency, skin diseases, kidney failure, improper mental and physical growth and water-borne diseases also. Chemical fertilizers such as pesticides and herbicides are slow poison and reached our body with the food material. It is estimated that 800,000 people in developing countries have been died due to use of pesticides. Therefore biofertilizers is a better choice than the chemical fertilizers for good health and a better life. Microorganism or microbes are found all around us and even in our body. They are bacteria, viruses, algae, fungi and protozoa. Some microbes are beneficial to plants and act as chemical fertilizers so-called biofertilizers. They exist in the rhizosphere and known as plant growth-promoting rhizobacteria (PGPR) or plant growth-promoting microorganism. They have the ability to inhabit the root of the plants and improve their development. In the present scenario, plant growth-promoting microorganism is very important for restoring the agroecosystem. Switch on biofertilizers is the basic need in present time for inhibiting various diseases caused by chemical fertilizers. Thus microorganisms are being used as a replacement of chemical fertilizers. In this chapter, we will attempt to explain the roles of microbes in organic farming for improving human race and nature by maintaining sustainable agroecosystem along with the history of organic farming and its relevance, problems and constraints in India.
References
Bonkowski, M., Villenave, C., & Griffiths, B. (2009). Rhizosphere fauna: The functional and structural diversity of intimate interactions of soil fauna with plant roots. Plant and Soil, 321(1–2), 213–233. https://doi.org/10.1007/s11104-009-0013-2
Chandrashekar, H. M. (2010). Changing scenario of organic farming in India: An overview. International NGO Journal, 5(1) (February), 034–039.
Cooper, K. M., & Grandisons, G. S. (1986). Interaction of VAM fungi and root knor nematode on cultivars of tomato and white clover susceptible to Meliodogyne hapla. Annals of Applied Biology, 108(3), 555–565. https://doi.org/10.1111/j.1744-7348.1986.tb01994.x
Hill. R, and Wright, S.J.L. (eds). (1978). Pesticide microbiology. Academic Press.
Jacoby, R., Peukert, M., Succurro, A., Koprivova, A., & Kopriva, S. (2017). The role of soil microorganisms in plant mineral nutrition—Current knowledge and future directions. Frontiers in Plant Science, 8, 1617. https://doi.org/10.3389/fpls.2017.01617
Mamgain, A. (2019). Status, importance, prospects, and vision of organic farming in India. International Journal of Advance Research, Ideas and Innovations in Technology, 5(1) February pp, 436–443.
Matsumura, F., & Krishna Murti, C. R. (Eds.). (1982). Biodegradation of pesticides. Plenum Press.
Muller, D. B., Vogel, C., Bai, Y., & Vorholt, J. A. (2016). The plant microbiota: Systems-level insights and perspectives. In Annual review of genetics (50th ed.) Bonini N. M. (Palo Alto (pp. 211–234). Annual Reviews.
Parke, E. L., Linderman, R. G., & Black, C. H. (1983). The role of ectomycorrhizas in drought tolerance of Douglas fir seedlings. New Phytologist, 95(1), 83–95. https://doi.org/10.1111/j.1469-8137.1983.tb03471.x
Ram, B. (2003). Impact of human activities on land use changes in arid Rajasthan: Retrospect and prospects. In P. Narain, S. Kathaju, A. Kar, M. P. Singh, & P. Kumar (Eds.), Human impact on desert environments (pp. 44–59). Scientific Publishing.
Reddy Suresh, B. (2010). Soil fertility management in semiarid regions: The sociocultural, economic and livelihood dimensions of farmers’ practices- A case of Andhra Pradesh [Unpublished PhD thesis], Centre for Economic and Social Studies, Dr. BR Amedkar University.
Sullivan, P. (2001). Sustainable management of soil-born plant diseases. ATTRA, USDA’s Rural Business – Cooperative Service. www. a t t r a.o. r g.
Thompson, B. D., Grove, T. S., & Malajczuk, N. (1994). StJ-hardy GE. The effectiveness of ecotomycorrhizal fungi in increasing the growth of Eucalyptus globus Labill. In relation to root colonisation and hyphal development in soil. New Phytologist, 126, 517–524.
Zarb, J., Ghorbani, R., & Koocheki, A.and Leifert reveal C. (2005). The importance of microorganisms in organic farming systems. Outlooks on Pest Management, April 16(2), 52–55.