Growth Rate and Yield of Two Tomato Varieties (Lycopersicon esculentum Mill) under Green Manure and NPK Fertilizer Rate Samaru Northern Guinea Savanna

Table 1

Physical and chemical properties of soils at experimental sites in Samaru during 2010-2011 and 2011-2012 dry seasons.

Physical properties (%)	Year
	2010-2011	2011-2012
Sandy	40.0	44.0
Silt	30.3	31.0
Clay	28.7	25.0
Textural class	Loam	Loam
Chemical properties
pH in water	5.6	6.2
pH (0.0 CaCl2)	4.9	5.3
Organic carbon (g kg^−1)	0.72	0.72
Available phosphorus (mg kg^−1)	14.3	14.3
Total nitrogen (g kg^−1)	0.42	0.52
Exchangeable bases (cmol kg^−1)
Ca^++	1.80	1.80
Mg^++	0.32	1.20
K^+	0.17	0.33
Na^++	0.25	0.05
Exchangeable acidity	0.22	0.19
CEC	8.65	7.11

Source: analyzed soil samples at Soil science Department’s laboratory, A.B.U., Zaria.