Table 7.

Total Land Equivalent Ratios (LER) of maize intercropped with cowpea, soybean and groundnut in different spatial arrangements and at different soil fertility status, averaged over both seasons in the southern Guinea savanna (SGS) and northern Guinea savanna (NGS) of northern Ghana. SED indicates the combined standard error of difference between means.

Cropping pattern	SGS				NGS
	HF	MF	LF	Mean	HF	MF	LF	Mean
MZ-CP mixed	1.41	1.65	1.54	1.53	1.52	1.51	1.81	1.61
MZ-CP 1:1	1.15	1.28	1.37	1.27	1.18	1.33	1.68	1.40
MZ-CP 2:2	1.10	1.21	1.24	1.18	1.18	1.33	1.47	1.33
Mean	1.22	1.38	1.38	1.33	1.29	1.39	1.65	1.44
MZ-SB mixed	1.28	1.65	1.35	1.43	1.54	1.60	1.80	1.65
MZ-SB 1:1	1.13	1.29	1.21	1.21	1.15	1.43	1.58	1.39
MZ-SB 2:2	1.07	1.18	1.16	1.14	1.13	1.37	1.57	1.36
Mean	1.16	1.37	1.24	1.26	1.27	1.46	1.65	1.46
MZ-GN mixed	1.49	1.40	1.53	1.47	1.45	1.55	1.78	1.59
MZ-GN 1:1	1.34	1.28	1.30	1.31	1.30	1.26	1.58	1.38
MZ-GN 2:2	1.20	1.26	1.40	1.29	1.29	1.28	1.69	1.42
Mean	1.34	1.31	1.41	1.35	1.35	1.36	1.68	1.46
SED (arrangement)				0.03				0.04
SED (fertility)				n.s.				0.05

CP − cowpea; SB − soybean; GN − groundnut; MZ − maize.