ANJALI KANWAL, INDU SHARMA 1, SUSHIL KUMAR UPADHYAY, MANOJ SINGH, MAHITI GUPTA, NEHA CHAUHAN1 AND RAJ SINGH*
Department of Bio-Sciences and Technology, Maharishi Markandeshwar (Deemed to be University), Mullana,
Ambala-133 207 (Haryana), India
*(e-mail: dr.rajsingh09@gmail.com Mobile: 98979 90346)
(Received: January 5, 2026; Accepted: February 3, 2026)
ABSTRACT
Carbon sequestration in soil is a vital process for mitigating climate change and enhancing soil health. It involves the capture and long-term storage of atmospheric carbon dioxide (CO‚ ) in the form of stable organic and inorganic carbon compounds within soil systems. The aim of this research was to find out the role of nanofertilizers in physico-chemical changes and enhancement of soil organic carbon in the crop field. The nanoparticles ZnO, Fe2O3 and MnO2 are green synthesized using pea peel biomass. For the purpose of treating tomato, chilli and brinjal crops, aqueous solutions of nanoparticles were made at concentrations of 10, 20, and 50 ppm. The soil samples were examined for chemical and physical parameters such as soil profile, pH, electric conductivity, moisture holding capacity, bulk density, macro-
and micronutrients and soil organic carbon, initially as well as post-harvest of crops. These nanomaterials enhance nutrient use efficiency, promote plant growth and stimulate root exudation, which in turn can increase the input of organic carbon into soils. The application of green Zn, Fe and nanofertilizers may also influence microbial activity and enzyme functions, thereby accelerating the stabilization of organic matter and improving carbon retention.
Key words: Nanofertilizers, zinc, iron, manganese, soil carbon sequestration, root exudation, soil microbiota