Table 3.

Shoot concentrations of mineral nutrients of maize plants (cv. Jessy) on two low P soils. as affected by MCP inoculation. Soil 1 (sandy-loam, pH 6.1, P_CAL 7 mg kg⁻¹ soil) and Soil 2 (clay-loam, pH 5.9, P_CAL 20 mg kg⁻¹ soil) receiving N fertilization in in form of Ca-nitrate (NO₃⁻) or DMPP-stabilized ammonium (NH₄⁺) and a moderate soluble P supply (30 mg P kg⁻¹). Data represent means of five replicates. A one-way ANOVA with Tukey test was performed for data comparison. Different letters indicate significant differences between treatments (p < 0.05).

Shoot Mineral Concentration (g kg DM−1)
	N Forms	MCP Treatments	N	P	K	Ca	Mg
Soil 1	NO3−	no MCP	26.21 a	1.87 bc	51.19 a	3.94 a	1.99 a
		with MCP	25.25 a	1.82 c	49.22 a	3.95 a	1.99 a
	NH4+	no MCP	26.75 a	2.10 a	50.38 a	2.73 b	1.82 b
		with MCP	27.37 a	2.01 ab	49.55 a	2.75 b	1.74 b
Soil 2	NO3−	no MCP	37.54 a	1.38 a	36.75 b	4.92 a	2.71 a
		with MCP	35.42 b	1.24 b	36.61 b	4.81 a	2.65 a
	NH4+	no MCP	37.50 a	1.42 a	38.60 ab	4.15 b	2.33 b
		with MCP	37.73 a	1.45 a	39.88 a	4.00 b	2.12 c
Deficiency Threshold [16]			30.00	3.00	20.00	2.50	1.50