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Efficiency of the use (EU) of nitrogen (EUN), phosphorus (EUP), and potassium (EUK) by Senegalia polyphylla in non-competitive cultivation at 120 days after transplanting in a substrate containing dystrophic red latosol. The solid line (-) represents EU values in mineral (MF) and organic (OF) fertilizations, and the dotted (...), the control (0–0%). The upper and lower axes, per graph, show the combinations of MF and OF. * significant at 5% via the F test.
