The objective was to evaluate mineral fertilization in Neossolo Quatzarênico Ortico, under
Marandú grass (Urochloa brizantha cv.Marandu), integrated with legume alleys (gliricidia -
Gliricídia sepium, and leucena - Leucaena leucocephala). The experiment was conducted in a
randomized block design in a 3x2 factorial arrangement, with five replications. In which, the
first factor was: cultivation system (single marandu; marandu cultivated in gliricidia alleys;
marandu cultivated in leucena alleys) and the second factor: mineral fertilization (presence of
mineral fertilization + organic fertilization with legumes; absence of fertilization) mineral, with
addition of legume). The evaluations of the variables total dry mass (MST), leaf (MSF), stem
(MSC) dead material (MM) and leaf blade proportions (LF), stem (C), dead material (MM),
stem leaf ratio (F : C), plant height (ALT) and leaf content of macronutrients in Marandu grass,
were carried out in five cycles (November 2019 to March 2020) of 28 days. Cultivation in
leguminous alleys increased the production of marandu grass and the presence of mineral
fertilization enhanced these results. Regardless of mineral fertilization. The cultivation in
leucena alleys showed a higher leaf N content in relation to single cultivation. In the leaf content
of K + and Mg ++ in the legume alleys there were positive changes when compared to single
cultivation. Alley cultivation increased the most important production variables for marandu
production. Even in the presence of mineral fertilization, legumes showed an impact on the
results when related to the cultivation of single marandu.
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