Author(s): B. B. BARICK, B. C. PATRA AND P. BANDYOPADHYAY

Abstract: A field experiment was conducted during rabi season of 2017-18 at the Instructional Farm, Jaguli, Bidhan Chandra Krishi Viswavidyalaya, Nadia, West Bengal to study the effect of irrigation levels and methods of sowing on production potential of rapeseed (Brassica campestris L. Prain). The experiment was laid out in split-plot design with four (4) irrigation levels included in main plots viz. rainfed (I1), IW:CPE of 0.6 (I2), IW:CPE of 0.8 (I3), IW:CPE of 1.0 (I4) and three (3) methods of sowing viz. broadcasting (M1), line sowing (M2) and transplanting [(M3), (10 days old seedlings)] arranged in sub-plots. The result of the experiment revealed that the growth attributes viz. plant height, leaf area index, dry matter production and crop growth rate; yield attributes viz. primary branches plant-1, siliqua plant-1, seeds siliqua-1 and test weight (g) and yield of rapeseed were recorded to be maximum under I4 which recorded 55.69% increase in yield over control (I1), however, M2 registered 17.63 % increased yield over M1. I4M2 performed the best with respect to yield (920.28 kg ha-1) along with better (2.41 kg ha-1 mm-1) water use efficiency (WUE); however, the highest WUE had been recorded in I1M2. I4M1 recorded the highest net return (Rs.45219.20) as well as B: C (2.13) among all the treatment combinations.

DOI: 10.22271/09746315.2020.v16.i2.1349

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