Effect of Nitrogen and Boron Fertilization on Nutrient Content and Uptake by Mustard Crop in Chitrakoot Area

Abstract

This study assessed the impact of nitrogen (N) and boron (B) fertilization on yield, nutrient composition, and nutrient uptake in Indian mustard (Brassica juncea) in Chitrakoot, Madhya Pradesh, India. A field trial featuring 13 treatments combined reduced nitrogen levels, nano-urea applications, and different boron doses, using a randomized block design with three replications. Treatment T12 [½ recommended nitrogen dose (RDN) + two nano-urea sprays + 1.25 kg B ha⁻¹] achieved the highest seed yield (1523.81 kg ha⁻¹), surpassing the control (100% NPK as per RDF) which yielded 958.73 kg ha⁻¹. T12 also had the highest nutrient concentrations 2.78% nitrogen, 0.482% phosphorus, and 0.74% potassium as well as the highest nutrient uptake, with nitrogen at 42.36 kg ha⁻¹, phosphorus at 7.34 kg ha⁻¹, and potassium at 11.28 kg ha⁻¹. These results indicate that combining nano-urea with boron, especially at elevated boron levels, can significantly improve yield and nutrient absorption in mustard, highlighting its potential for sustainable farming in semi-arid areas.