On-Farm Experimentation with Improved Maize Seed and Soil Amendments in Southern Ghana: Productivity Effects in Small Holder Farms

Table 6

Phenology of three maize varieties as influenced by different soil amendments in the coastal savannah (CSZ) and semi deciduous forest zone (SDFZ) in the major cropping season.

Maize varieties	No. of days to 50% anthesis		No. of days to 50% silking		Anthesis-silking interval (ASI)		Days to physiological maturity
	CSZ	SDFZ	CSZ	SDFZ	CSZ	SDFZ	CSZ	SDFZ
Ahomatea	54.6	54.2	59.9	59.3	5.3	5.0	120.5	120.3
Obatanpa	53.6	52.6	58.6	57.2	5.0	4.6	105.2	104.2
Omankwa	41.2	41.4	44.2	43.9	3.0	2.5	90.6	89.7
Tukey (5%)	1.26	1.26	1.25	1.25	0.78	0.78	2.89	2.89
Soil amendments
Fertilizer	48.5	48.6	52.9	52.2	4.3	3.5	104.2	103.5
Fert + Man	48.7	48.6	52.5	52.1	3.8	3.4	104.2	103.9
Manure	49.9	49.4	54.8	53.9	4.8	4.4	106.5	105.4
Control	52.0	50.8	56.8	55.7	4.8	4.8	106.8	106.2
Tukey (5%)	1.60	1.60	1.59	1.59	0.98	0.98	—	—

No.: number; Fert + Man: fertilizer + manure.