Table 7 Coefficients for soil factors in the multiple regression (b) to predict relative yield to fertilisation and their respective standard errors and p values (significant values in italics). Dependent variable = relative yield; R² = 0.75; adjusted R² = 0.68; F (3,10) = 10.051; p < 0.0231

From: Modelling soil nitrogen mineralisation in semi-mature pine stands of South Africa to identify nutritional limitations and to predict potential responses to fertilisation