Growth Rate and Yield of Two Tomato Varieties (Lycopersicon esculentum Mill) under Green Manure and NPK Fertilizer Rate Samaru Northern Guinea Savanna
Table 4
Influence of NPK fertilizer and green manure rates on Relative growth rate, crop growth rate per plant, and yield of two tomato varieties in Samaru, 2010-2011 and 2011-2012 dry season.
Relative growth rate (RGR) g g−1 wk−1
Crop growth rate (CGR) g·wk−1
Total yield t ha−1
5–7 WAT
7–9 WAT
Mean
5–7 WAT
7–9 WAT
Mean
Variety
Roma VF
0.80
1.28
1.04
8.2
9.5
8.8
11.2
UC82B
0.84
1.36
1.10
9.4
11.0
10.2
12.4
Mean
0.82
1.32
8.8
10.2
11.8
LSD (0.05)
0.120
0.143
0.86
1.51
0.71*
Fertilizer rate kg ha−1
0
0.76
1.05
0.91
7.3
5.0
6.1
9.8
150
0.77
1.17
0.97
8.2
7.1
7.7
11.5
300
0.83
1.47
1.15
9.6
13.7
11.6
13.5
450
0.89
1.61
1.25
9.9
15.6
12.8
12.4
Mean
0.81
1.33
8.8
10.3
11.8
R
L
L
L
L
Q
Green Manure t ha−1
0
0.73
1.28
1.01
8.2
8.8
8.5
11.2
5
0.87
1.35
1.11
9.2
10.3
9.7
11.4
10
0.86
1.31
1.09
8.0
12.0
10.0
12.7
Mean
0.82
1.31
8.4
10.4
11.8
R
Q
Q
Q
L
L
Significant at , R: regression, L: linear, and Q: quadratic response.
