Effect of irrigation frequency and zinc fertilization on growth and yield of Indian mustard (Brassica juncea (L.)

A field experiment was conducted at Instructional Farm, Agronomy, Rajasthan College of Agriculture, Udaipur during rabi 2020-21. The experiment was laid out in split plot design having 12 treatment combinations replicated four times. The experiment having three levels of irrigation (one irrigation at seedling stage, two irrigations at seedling + pod formation stage and three irrigations at seedling+50% flowering+ pod formation stage) in main plots and four levels of zinc (control, 4 kg Zn ha-1, 8 kg Zn ha-1 and 12 kg Zn ha-1) in sub plots. The significant increase in plant height, branches plant-1, leaf area index, dry matter accumulation, siliqua plant-1, seeds siliqua-1, test weight, seed yield, stover yield and biological yield was observed with the application of three irrigations given at seedling, 50% flowering and pod formation stage along with 8 kg Zn ha-1 as compared to control.