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Enriching soils with nanocompounds can enhance microbial activity, say scientists

We live in a world where day to day objects seems to be getting smaller and better. The advent of nanotechnology is a major contributing factor to this phenomenon. Defined as the “engineered construction of matter at the molecular level”, nanotechnology has applications and uses in a multitude of fields. From medicine, electronics, food, clothing, batteries and environment, nanotechnology seems to be pushing the limits of all these fields. Now, scientist have discovered yet another novel application of nanotechnology – facilitating soil microbial growth.

Scientists from the G. B. Pant University of Agriculture and Technology, Pantnangar, Indian Veterinary Research Institute, Izatnagar, and State Council for Science & Technology, Dehradun, studied the impact of three nanocompounds on soil microbial activity and the health of plants being cultivated. 

The scientists found that supplementing agricultural soils with nanocompounds like nanoclay, nanochitosan and nanozeolite led to a higher growth of microbial populations in the soil. And such an increased microbial population further led to increased levels of phosphorus, organic carbon and nitrogen in the soils, all of which are known to improve the health of crops being cultivated. Additionally, the scientists also observed increased levels of microbial enzyme activity in the soil, as well as a 50% rise in the total protein content of the soil. 

Although nanoclay had the least effect on the soil’s pH, nanozeolite was found to best facilitate the growth of soil microbes. An increase in soil microbial activity along with all the other downstream benefits, caused by these nanocompounds, are all an indicator of enhanced soil health. Therefore, supplementing soils with such nanocompounds could go a long way in improving the agricultural soils, plant health and ultimately, the crop yields of our country.