Influence of Corn (Zea mays L.) Cultivar Development on Grain Nutrient Concentration

Table 1

Study site soil chemical characteristics (0–10 cm layer) at Rolandia County, Parana State, Brazil.

	pH	O.M.	P	Ca	Mg	K	H + Al	Mn	Fe	Cu	Zn
	CaCl2	g kg^−1	mg kg^−1	g/kg			cmolc kg^−1	mg kg^−1
Year 1	6.0	28.4	24.5	0.21	0.04	0.04	3.2	268	86	33	13
Year 2	5.9	29.1	40.3	0.13	0.03	0.03	3.1	308	67	24	12