Performance of foliar applied urea and nano-urea in single cut fodder oat
DOI:
https://doi.org/10.59797/ija.v70.i4.5676Keywords:
Nano-urea, Foliar N fertilization, Fodder oat, Urea foliar sprayAbstract
The field experiment was carried out during the rabi season of the year 2022–23 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% recommended dose of 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 compared to RDN.
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