Regarding macronutriments, statistically significant
differences (p ≤ 0,05) were found only in N, K and Ca
content, in the first 20 cm depth. In 2010, as regards nitrogen, doses of 5 t ha-1 of B was statistically equal
to CM and V 10 and 5 t ha-1, B 10 t ha -1, 230-0-00 g
of NPK tree-1 and control; but superior than mineral
230-0-300 g of NPK tree-1 (Table 2).