| The aim of this work was to evaluate organic-mineral substrates in the production of Erythrina velutina seedlings. The experiment was conducted in a split-plot completely randomized design, subdivided in time, with 10 replications. Five substrates (S) were used: S1 = soil; S2 = soil + tanned bovine manure (20%); S3 = soil + simple superphosphate (300 g m-3); S4 = soil + simple superphosphate + micronutrients (300 g m-3, 50 g m-3); S5 = soil + simple superphosphate + micronutrients (300 g m-3, 50 g m-3) + tanned bovine manure. The substrate was composed of soil, and bovine manure tanned in the ratio 4:1, according to each treatment. Five seedlings were collected at intervals of 14, 28, 42, 56 and 70 days after sowing. The analyzed variables were: shoot... |
