P. Keerthi1*, S.K. Sharma1, Neelam1, Kautilya Chaudhary2, Nidhi Kamboj2
and Neeraj1
1Department of Agronomy, 2Department of Soil Science CCS Haryana Agricultural University,
Hisar 125004
Email: keerthi26@hau.ac.in
Received-15.02.2025, Revised-08.03.2025, Accepted-24.03.2025
Abstract: A Field experiment was conducted during rabi2022-23 to study the effect of sowing time and nitrogen fertilization on yield, economics and nutrient uptake of Indian mustard varieties at research farm, College of Agriculture, Hisar, Haryana. The experiment was laid out in split plot design with three replications comprising two sowing dates viz., timely sown (Oct 20) and late sown (30 Oct) with two varieties RH 1424 and RH 725 and four nitrogen levels viz., 0 (control), 60, 80 and 100 kg N/ha as main plots and sub plots treatments, respectively. The maximum seed yield was obtained with timely sown crop with RH 1424 (26.13 q/ha) which was statically at par with timely sown RH 725 (23.13 q/ha), thereafter the yield decreased with delay in sowing. However, the yield obtained in late sown crop with RH 1424 is statically at par with late sown RH 725. Maximum uptake of nitrogen was recorded with timely sown RH 1424 (82 kg/ha) and 100 kg N/ha (78.4 kg /ha) compared to other treatments. The mustard yield was increased significantly with increased dose of nitrogen. Maximum seed yield (26.21 q/ha), biological yield (175 q/ha) and highest benefit cost ratio of 2.18 was obtained with 100 kg N/ha. However, the seed yield obtained with 100 kg N/ha is statically at par with 80 kg N/ha. The uptake of nitrogen was higher under 100 kg N/ha by 75% over the control.
Keywords: Brassica juncea, Nitrogen, Fertilization, Oilseed crops
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