Residual Nitrogen Contributions from Grain Legumes to the Growth and Development of Succeeding Maize Crop

Table 3

Interaction between previous crop and nitrogen fertilizer on the height (cm) of succeeding maize crop at 12 WAS at Samaru, Zaria, Nigeria during 2008 cropping season.

	Fertilizer rates (kg N ha^−1)
	0	40	80	120
Previous Legume crops
Soyabean	137.7i	185.5e	188.6e	193.3d
Cowpea	148.9h	187.2e	193.4d	198.4d
Lablab	176.2ef	212.8c	239.7ab	243.8a
Groundnut	152.2h	195.5d	202.5cd	211.8c
Previous maize	135.5i	175.8fg	189.7de	194.3d
Fallow	142.3hi	186.7e	196.2d	203.3c

Means followed by the same letter(s) are not statistically different at 5% level of significance.