Agronomy Journal -- Lippke et al. 98 (5): 1333 Figure IG9

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Fig. 9. Treatment means for N uptake, Year 2. Model equation: kg ha^–1 = 5.62 + (N_A x 0.7608) + (P_A x 4.234) + (N_A x P_A x 7.386 x 10^–3) – (N_A x N_A x 10.86 x 10^–4) – (P_A x P_A x 6.043 x 10^–2), (n = 21, R² = 0.97, s = 21.37).