Content and composition of essential oil in lemon balm (Lippia alba (Mill) N.E.Br.) grown with ammonium and nitrate in light environments Yazar: Lima, Janderson Do Carmo, Santos, Anacleto Ranulfo Dos, Soua, Aline Dos Anjos, Santos, Marcelo Batista Dos, Alves, Pericles Barreto