Impact of Foliar Application of Nano Urea on Yield, Nutrient Uptake and Fruit Quality of Brinjal (Solanum melongena L.) in the Western Undulating Zone of Odisha, India

Abstract

This study investigated the impact of using nano urea along with conventional urea on brinjal farming in the Western Undulating Agro-climatic Zone of Odisha. The research was conducted at the Regional Research and Technology Transfer Station (OUAT) in Bhawanipatna, Kalahandi, Odisha, India during October, 2022-23 (rabi season). Results showed that application of 50% STD of nitrogen + nano-urea spray at 3-4 weeks after transplanting at the rate of 8 ml L-1 of water recorded highest leaf area index, SPAD, nutrient uptake and yield of brinjal followed by 75% STD of nitrogen + nano-urea spray at 3-4 weeks after transplanting at the rate of 6 ml L-1. Result clearly showed that in T9 where foliar application of nano urea with the reduced supplementation of inorganic nitrogen fertilizer @ 50% has been applied increased the fruit yield of brinjal to the tune of 27% over the soil test dose of NPK (STD) and achieved maximum B:C ratio of 1.55. Results also showed that there is no significant impact was observed in fruit quality parameters of brinjal and post-harvest soil properties due to nano urea application.