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−1Crop growth rate (CGR) g·wk−1Total yield t ha−1
5–7 WAT7–9 WATMean5–7 WAT7–9 WATMean

Variety
 Roma VF0.801.281.048.29.58.811.2
 UC82B0.841.361.109.411.010.212.4
 Mean0.821.328.810.211.8
 LSD (0.05)0.1200.1430.861.510.71*
Fertilizer rate kg ha−1
 00.761.050.917.35.06.19.8
 1500.771.170.978.27.17.711.5
 3000.831.471.159.613.711.613.5
 4500.891.611.259.915.612.812.4
 Mean 0.811.338.810.311.8
 RLLLLQ
Green Manure t ha−1
 00.731.281.018.28.88.511.2
 50.871.351.119.210.39.711.4
 100.861.311.098.012.010.012.7
 Mean 0.821.318.410.411.8
 RQ Q QLL

Significant at , R: regression, L: linear, and Q: quadratic response.