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Table 7 Apparent nitrogen recovery efficiency (RE) and nitrogen harvest index (NHI) as influenced by the interaction effect of N fertilizer rate and time of N application

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

N timing

N rate (kg ha−1)

N rate (kg ha−1)

120

240

360

120

240

360

RE %

NHI (%)

T 1

56.1ab

42.71d–f

36.68ef

80.99a–c

81.08a–c

79.21a–d

T 2

46.85b–d

35.48fg

26.46gh

83.75a

80.55a–c

80.81a–c

T 3

45.81c–e

35.53fg

25.64h

81.45a–c

80.28a–c

78.22b–d

T 4

53.34a–c

48.19b–d

40.74d–f

76.66cd

76.68cd

76.39cd

T 5

59.24a

58.78a

47.92b–d

82.65ab

76.04cd

73.82d

CV (%)

11.94

3.82

  1. Means followed by the same letters for the same parameter are not significantly different at P ≤ 0.05
  2. CV Coefficient of variance
  3. T1 = N application ½ at sowing and ½ at tillering; T2 = N application at tillering; T3 = N application 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