Performance of Gobhi season (Brassica napus L.) as influenced by different date of sowing and nitrogen levels under irrigated condition of central Punjab

Abstract

A field experiment was carried out to assess the effects of different date of sowing and nitrogen levels on growth and
yield of Gobhi sarson (Brassica napus L.) during rabi season of 2018-19. The experiment was laid out in split plot design
with three replications with the three date of sowing as main plot treatment viz., 10th October, 25th October and 15th
November and four levels of N as sub-plot treatments viz.,0, 40, 80 and 120 kg/ha. The results revealed that highest
values of growth parameters, yield attributes and yield of crop were recorded under 25th October date of sowing which
was remained at par with 10th October but it was recorded significantly superior over the 15th November. In case of N
levels, the maximum values of growth parameters, yield attributes and yield of crop were recorded under 120 kg N/ha
which was found at par with 80 kg N/ha but significantly superior over the other N levels. Therefore, 25th October sowing
with 120 kg N/ha can be beneficial in enhancing the growth and yield attributes of the Gobhi sarson.