The effect of N fertilizer rates on agronomic parameters, yield components and yields of maize grown on Alfisols of North-western Ethiopia

Environmental Systems Research

Table 2 The effect of nitrogen fertilizer rates on plant height (cm) measured at different growth stages of maize

Fertilizer rate (kg ha⁻¹)	Time of measurement of plant height
Fertilizer rate (kg ha⁻¹)	35 days after emergence	60 days after emergence	At harvest
0	15.3 d	87.1 d	180.4 d
30	21.2 c	121.4 c	197.2 c
60	24.1 b	140.2 b	214.4 b
90	25.6 a	150.3 a	221.2 a
200	24.6 b	150.4 a	225.1 a
CV (%)	10.83	8.86	6.14

Means followed by a common letter in a column are not significantly different at 5 % probability level by DMRT