Synthesis of green nanobiofertilizer using silver nanoparticles of Allium cepa extract Short title: Green nanofertilizer from Allium cepa
Vitthalraj Chandrakant Gosavi, Abhijit Arun Daspute, Akshay A. Patil, Anuja Gangurde, Sopan Ganpatrao Wagh, A.S. Sherkhane ., Varsha Anandrao Deshmukh
Abstract
The present study involved the green synthesis of onion silver nanoparticles (AgNPs) from the onion extract as a reducing agent to develop nanobiofertilizer. Characterization of AgNPs was done by Fourier transform infrared (FTIR) spectroscopy, UV-Visible spectrophotometer and Scanning Electron Microscopy (SEM). UV–vis spectroscopy confirmed the formation of AgNPs by observing the typical surface plasmon resonance peak at 470 nm. The possible functional groups of AgNPs were identified by FTIR analysis. SEM studies revealed that AgNPs were cubical shaped with an average particle size range from 10 to 30 nm. The both the fresh weight and vigor were higher in plants treated with 15 ml/l synthesized nanobiofertilizer compared to control. The synthesized nanobiofertilizer from onion extract is an effective fertilizer for brinjal and tomato plants. The use of such types of nanobiofertilizer can reduce the excessive use of chemical fertilizers, environmental pollution and helps in reduction of farm management costs.