Effect of Sulpher, Boron and Irrigation on Growth, Yield and Quality of Mustard

Abstract

The study was carried out at the Agronomy field laboratory, University of Rajshahi, Bangladesh during the period of 2012-2013 and 2013-2014 to study the effect of irrigation, sulpher and boron on growth, yield and quality of mustard. The treatment comprised three levels irrigation (control, one and two), four levels sulpher (0, 30, 40, 50 kg S ha-1) and four levels boron (0, 0.5, 1.5, 2 kg B ha-1). The experiment was layout in split-split plot design with three replications by assigning irrigations in main plots, sulpher in sub plots and boron in sub-sub plots. Phenological characters differed significantly due to irrigation, sulpher and boron at different growth stages. The irrigated field produced the highest plant height (cm) and maximum number of leaves than non irrigated field. The highest plant characters were observed when field was fertilized with 40 kg S ha-1 and 1.5 kg B ha-1. The highest growth parameters like TDM, CGR, LAI and NAR were observed in irrigated field where applied different levels of sulpher and boron. The lowest values were found in control. Result showed that TDM and LAI increased with the advancement of plant ages. Results showed that yield and yield contributing characters i.e. number of branches, number of siliqua plant-1, siliqua length (cm), number of seeds siliqua-1, number of normal seeds siliqua-1, number of deformed seeds siliqua-1, 1000- seed weight (g), seed yield (t ha-1) and straw yield (t ha-1) were significantly influenced due to irrigation, sulpher and boron levels in both the years. The highest yield contributing characters were found when one irrigation was given which was statistically similar to two irrigations. When the field was fertilized with sulpher and boron, the yield components were found in maximum. The yield was highest when one irrigation, 40 kg S ha-1 and 1.5 kg B ha-1 were applied to the field which was statistically similar to other doses. Seed yield positively correlated with number of branches, number of siliqua plant-1, siliqua length (cm), number of seeds siliqua-1, number of normal seeds siliqua-1, 1000-seed weight (g). Irrigated and fertilized plants gave significantly higher quality of mustard. From the results it may be concluded that, application of one irrigation at flowering stage with 40 kg S ha-1 and 1.5 kg B ha-1 are better for maximizing growth, yield and quality of mustard.