Effect of nitrogen fertilizer rates on grain yield and nitrogen uptake and use efficiency of bread wheat (Triticum aestivum L.) varieties on the Vertisols of central highlands of Ethiopia

Table 7 Interaction effect of year, N application rate and variety on grain nitrogen uptake and total nitrogen uptake of bread wheat at Enewari, central highland of Ethiopia

Variety	N rate (kg ha⁻¹)	GNUP (kg ha⁻¹)		TNUP (kg ha⁻¹)
Variety	N rate (kg ha⁻¹)	Year 2014	Year2015	Year2014	Year 2015
Menze	0	29.58j	25.42j	31.68k	28.86k
	120	81.42g–i	75.83hi	97.46ij	98.90ij
	240	106.87ef	114.90de	124.00gh	144.33c–f
	360	116.43c–e	130.42a–c	147.31c–e	165.30ab
Tsehay	0	24.65j	23.99j	26.70k	27.60k
	120	93.78fg	85.35gh	106.89hi	108.98hi
	240	116.17c–e	124.03b–d	139.15d–g	154.22b–d
	360	134.70ab	143.13a	160.72bc	178.50a
ET-13	0	19.30j	22.61j	23.68k	29.78k
	120	68.52i	77.54hi	86.21j	99.11ij
	240	83.15g–i	95.68fg	107.44hi	135.02e–g
	360	102.63ef	75.71hi	128.96fg	107.94hi
CV (%)		6.39		6.02

Means followed by the same letter(s) for the same parameter are not significantly different from each other at 5% level of significance according to Duncan’s multiple range test

ISSN: 2048-7010