Consequences of Bioinoculants and Intercropping Approach to Alleviate Plant Drought and Salinity Stress for Sustainable Agriculture.

TitleConsequences of Bioinoculants and Intercropping Approach to Alleviate Plant Drought and Salinity Stress for Sustainable Agriculture.
Publication TypeBook Chapter
Year of Publication2019
AuthorsSekar J, Saharan K, Raju K, Singh U, Vaiyapuri PRamalingam
Book TitleSalt Stress, Microbes, and Plant Interactions: Mechanisms and Molecular Approaches
Volume2
Chapter8
Series Volume2
Pagination161-182
Abstract

Saline conditions have created severe negative influence on agriculture productivity and salt accumulation in soil leading to significant yield losses. According to an estimate, approximately 5.2 billion hectares (ha) of agricultural land is subject to soil degradation, erosion, and salinity. The salt-affected soil in India is about 8.1 million ha, with 3.1 million ha coastal saline soil, 2.8 million ha sodic soil, and the remaining 2.2 million ha saline soil, located inland. Even though salinity has already significantly affecgted the fertile lands, the land area under salinity is still increasing due to various anthropogenic activities as artifical irrigation, improper water management, blocking of natural drainage system, and similar human interferences with the environment. In saline-affected soils, the rhizosphere environment becomes unfavorable and inhospitable for growth of plants and microbes, althout there may be sufficient amount of wate and nutrients in solis. Overuse of artificial fertilizers and chemical pesticides causes long term degradation of soil fertility, in combination with an estimated rise of the world population to 8.5 billion over the next 25 years, calls for additional strategies to ensure the worldwide req uirement of food supply. The development of sustainable and sage means for agriculture production will be necessary, which includes enhancing the output on arid and saline areas to avoid further loss of cultivable land. The application of bioinoculants like plant growth-promoting rhizobacteria (PGPRs) and arbuscular mycorrhizal fungi (AMF) has the potential

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