Effect of shading and organic fertilization on the development and production of essential oil of Mentha arvensis L.

• DOI: https://doi.org/10.22533/at.ed.1531124010710

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• Abstract:

  Japanese mint (Mentha arvensis L.) is an aromatic plant, belonging to the Lamiaceae family, also known as peppermint, Japanese mint and vick, its oil has high levels of menthol, used in the cosmetics, beverage and pharmaceutical industries, In the Amazon region, little is known about the processes used to obtain the essential oil. Therefore, the present work aimed to evaluate the development and production of Mentha arvensis L. under different levels of shading combined with organic fertilization in the municipality of Itacoatiara-AM. The experiment was carried out in the experimental area of campus 2 of ``Universidade Federal do Amazonas``-UFAM, located on the AM-010 highway. The experimental design was conducted in randomized blocks in a 3 x 4 factorial scheme (three levels of shading and four fertilizations with manure cattle: Dry mass of the shoot (MSPA); Dry mass of the root (MSRA); Number of new shoots (NBT); were subjected to analysis of variance using the F test, and the means that were found to be significant were compared using the Scott-Knott test at 5%. The use of shade with an overshoot level of 50% influenced the growth in the number of leaves, as well as. the dosage of 20 t/ha reduced biomass production in Mentha arvensis L, in relation to cultivation in full sun, while the doses of cattle manure did not interfere significantly in biomass production, nor in other variables and physiological indices.