Research Article

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

Figure 2

Regression between yield (kg ha−1) and exportation of N, P, and K (kg ha−1) in the grain in ten corn cultivars representing five different technological levels harvesting in 2006 and 2007, at Rolandia County, Paraná State, Brazil. *** .
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