Performance of foliar applied urea and nano-urea in single cut fodder oat
DOI:
https://doi.org/10.59797/ija.v70i4.6046Keywords:
Nano-urea, Foliar N fertilization, Fodder oat, Urea foliar sprayAbstract
The field experiment was carried out during the Rabi season of the year 2022-2023 at Dr. Rajendra Prasad Central Agricultural University, Pusa, Samastipur, Bihar to study the effect of urea and nano-urea in single cut fodder oat. The experiment was laid out in a randomized block design with ten treatments replicated three times. The treatments included 100% nitrogen through urea (RDN), 75% RDN + 2 NU sprays @ 2 mL/L, 50% RDN + 2 NU sprays @ 2 mL/L, 75% RDN + 2 NU sprays @ 4 mL/L, 50% RDN + 2 NU sprays @ 4 mL/L, 75% RDN + 2 NU sprays @ 6 mL/L, 50% RDN + 2 NU sprays @6 mL/L, 75% RDN + 2 sprays of 2% urea, 50% RDN + 2 sprays of 2% urea and control. Application of 100% recommended dose of nitrogen through urea in fodder oat enhanced green and dry fodder yield by 13.6, 12.5 and 14.4% and 6.7, 4.3 and 8.9% compared to 75% recommended dose of nitrogen along with 2 sprays of nano-urea at 4 mL/L, 75% recommended dose of nitrogen along with 2 sprays of nano-urea at 6 mL/L and 75% recommended dose of nitrogen along with 2 sprays of 2% urea, respectively. Net return and B:C ratio also decreased significantly when 75% recommended dose of nitrogen along with 2 sprays of either nano-urea (at 4 or 6 mL/L) or urea (2%) was applied.
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