Effect of split application of different N rates on productivity and nitrogen use efficiency of bread wheat (Triticum aestivum L.)

Table 4 Interaction effect of the year × N rate and year × N timing on GNUP and TNUP of bread wheat

Means followed by the same letters for the same parameter are not significantly different at P ≤ 0.05
CV Coefficient of variation, NR nitrogen rate, NT time of nitrogen application
T₁ = N application of ½ at sowing and ½ at tillering; T₂ = N application at tillering; T₃ = N application of ½ at tillering and ½ booting; T₄ = N application 1/3 at sowing, 1/3 at tillering and 1/3 at booting; and T₅ = N application ¼ at sowing, ½ at tillering and ¼ at booting

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