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Sustainable Agriculture: Biofertilizers withstanding Environmental Stress

Author(s): Sunita Kumari Singh

World’s mounting population food demand is totally dependent on the chemical fertilizers which destroy the environment and negatively influencing the health of humans. The useful microorganisms inhabit the plant systems and plays substantial role in nutrient uptake from the ecosystems of plant. Biofertilizers augment the plant development by various direct and indirect plant growth promoting mechanisms such as biological nitrogen fixation, production of several plant growth hormones, siderophores, innumerable hydrolytic enzymes and solubilization and mobilization of potassium, zinc, and phosphorus, therefore, they are the finest substitute of chemical fertilizers as they are eco-friendly for plant growth and soil fertility. Despite these utilities, biofertilizers itself are subjected to the extreme environmental conditions and they developed different mechanisms to cope up with them. Extensive work on the biofertilizers has been done, which divulges that these microorganisms have the potential of providing the vital nutrients to the crops in optimum amount for the amelioration of harvest without distressing the ecosystem.

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