Byrsonima crassifolia seedlings growth on ground basalt rock

Ground basalt rock may represent a labile reservoir of nutrients, providing low-cost, nutrient-rich substrate for seedling formation and plant growth. The study aimed to evaluate the development native murici [Byrsonima crassifolia (L.) H.B.K.] seedlings using two different application rates ground with particles sizes. experiment was performed in greenhouse, which treatments were arranged random block design five replications factorial scheme (2 x 5 + 1), doses finely basaltic (0.42; 1.04; 2.08; 4.17 8.33 g kg-1), grain sizes (G1 Ø < 0.05 G2 0.10 mm mesh), treatment soil without powder addition (the control 0.0 kg-1 powder). cultivated incubated 120 days rock. Six months after planted variables involving growth nutrient content evaluated. Grain size affected availability from (Ca, Mg, Fe, Zn). linear increase rates, better results when used.