Effect of nano fertilizer and nano mixed micronutrients for yield and quality of Onion (Allium cepa L.)

Abstract

The research work entitled “Effect of nano fertilizer and nano mixed micronutrients for yield and quality of Rabi Onion (Allium cepa L.) variety “Agri found light red” was conducted at SHUATS, Prayagraj during the Rabi seasons of 2021 and 2022. The experimental design employed a Factorial Randomized Block Design (FRBD) with one factor focusing on the application of nano mixed micronutrients and the other on the application of nano fertilizers. The nano mixed micronutrients given were M0-control; M1-0.2 ml/ L of nano mix micronutrient/L of water as foliar application; M2-0.4 ml/L of nano mix micronutrient/ L of water as foliar application; M3-0.6 ml/ L of nano mix micronutrient/L of water as foliar application. The nano-fertilizers treatment given were F0- Control (without fertilizer); F1- 100% RDF as traditional fertilizer; F2-5 ml/ L each of Nano NPK/ L of water as foliar application; F3- 4 ml/L each of Nano NPK/ L of water as foliar application; F4- 3 ml/L each of Nano NPK/ L of water as foliar application. 50% traditional fertilizers were applied in all treatments excluding control. From the experimental findings it was concluded that interaction effect of F2M3 (5 ml/L each of Nano NPK/L of water as foliar application+6 ml/L of Nano mix micronutrients) performed best for Bulb polar diameter (cm) a showed maximum (6.36 cm.). Among showed that the maximum Bulb equatorial diameter (7.41 cm) in term of quality parameters like TSS among the treatment at (14.850Brix) and titrable acidity (%) among the treatment at (0.26%).