Effect of levels of nitrogen and boron on growth and yield of mustard (Brassica juncea L.)

Abstract

A field experiment was conducted at Crop Research Farm (CRF), Department of Agronomy, SHUATS, Prayagraj, on the Mustard in Rabi 2019, with 10 treatments which were replicated thrice and laid out in Randomized Block Design. The experiment consisted of three levels of Nitrogen viz., (N1: 60, N2: 70, N3: 80 Kg/ha) were applied at two split dosages and three levels Boron viz., (B1: 1%, B2: 2%, B3: 3%) as foliar application at 20 & 40 DAS respectively. Among the treatments, 80 Kg/ha of Nitrogen along with foliar spray of boron i.e., 1% was recorded higher in plant height (200.79cm), number of branches (10.87/plant), dry weight (113.30 g/plant), Crop growth rate (17.84 g/m2/day), number of siliqua/plant (173.00), number of seeds/siliqua (15.67), test weight (4.73g) were recorded higher in treatment combination 80Kg/ha Nitrogen + 2% Boron. Higher gross returns (₹114364.65/ha) and net returns (₹ 73609.65/ha) as well as benefit-cost ratio (1.81) were obtained with (80kg/ha Nitrogen + 2% Boron).