Abstract

The objective was to evaluate the production and composition of lavender essential oil, simultaneously at open field and greenhouse, in spring-summer season, under different types of fertilization. Each cultivation system was considered an experiment (field and greenhouse), and in both, the experimental design used was randomized blocks, with five treatments, being fertilization with nutrient source - 100% mineral (100% M), 100% organic (100% O), 100% organomineral (100% OM), 50% organomineral (50% OM), and without fertilization (control), and three repetitions. Better performance and productivity of Lavandula dentata is related to respectively 100% OM and 50% OM fertilization in the field and greenhouse. The essential oil content does not differ between cultivation systems and kind of fertilizers, and the majorities compounds were 1.8-cineol, fenchone and camphor.

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