Productivity, Water- and Nitrogen-Use Efficiency, and Profitability of Pearl Millet (Pennisetum glaucum) under Different Nitrogen Applications in Semiarid Region of Nigeria
Table 2
Effect of N-fertilizer rates and pearl millet variety on soil plant analysis development (SPAD), leaf area index (LAI), and plant height over two growing seasons in the semiarid zone of Nigeria.
Treatment
Minjibir
Gambawa
Nitrogen (N)
SPAD
LAI
Plant height
SPAD
LAI
Plant height
3 WAS
6 WAS
6 WAS
9 WAS
cm
3 WAS
6 WAS
6 WAS
9 WAS
cm
0 kg ha−1
50.9
46.4
1.8
2.3
178
46.2
40.7
1.5
2.0
142
20 kg ha−1
50.2
49.4
1.9
2.3
173
46.0
43.3
1.4
1.9
153
40 kg ha−1
48.5
48.4
1.9
2.3
178
46.2
43.5
1.5
2.0
155
60 kg ha−1
51.9
49.1
2.0
2.3
181
48.4
46.8
1.8
2.0
189
80 kg ha−1
54.2
49.6
1.9
2.4
176
50.3
47.4
1.8
2.0
156
100 kg ha−1
53.6
49.2
2.1
2.5
180
51.4
47.3
1.7
1.9
161
LSD
3.99
2.39ns
0.37ns
0.33ns
9.47ns
3.86
2.09
0.29
0.26ns
0.26
Variety (V)
Jirani
51.3
48.0
1.6
2.0
157
49.1
45.2
1.4
1.9
143
Super SOSAT
51.2
47.9
2.2
2.6
190
47.1
44.4
1.8
2.0
159
Local
52.2
50.1
2.0
2.5
186
48.1
44.9
1.7
2.0
176
Grand mean
51.5
48.7
2.0
2.4
178
48.1
44.8
1.6
2.0
159
LSD
2.64ns
1.79
0.18
0.18
8.37
1.70ns
1.58ns
0.17
0.15ns
0.19
CV (%)
12.6
9.1
22.6
18.9
11.6
8.6
8.5
24.4
19.8
29.0
LSD: least significant differences of means; CV: coefficient of variations.
