Agroeconomic Production and Antioxidant Activity of the Hibiscus Cultivated Under Organic Practices and Plant Arrangements

Heldo D. V. Rosa Aran, Néstor A. Heredia-Zárate, Willian Vieira Gonçalves, Silvia Cristina Heredia-Vieira, Maiane J. Pereira, Jackeline S. Soares, Kaliana G. de Freitas, Cláudia Andrea de L. Cardoso and Maria do Carmo Vieira

Journal of Agricultural Science, 2024, vol. 14, issue 1, 60

Abstract: In order to obtain better productivity and a good level of secondary metabolites for cultivating plants with organic residues, it is necessary to define the method of application and the best combination considering plant density. Our objective was to study the influence of the plant arrangement and methods of application of poultry manure in the soil over agroeconomic performance and the antioxidant activity of the hibiscus. Treatments in the field consisted of two plant arrangements (single or double rows, both with 0.50 meters between plants) and four methods of application of poultry manure to the soil [incorporating (10 t ha-1), mulching (10 t ha-1), mulching (5 t ha-1) + incorporating (5 t ha-1) and a control—no poultry manure] and, in the laboratory, antioxidant activity in relation to the treatments in the field and preparation methods (maceration or infusion). Treatments were arranged in randomized blocks of 2 × 4 with four replicates. The greatest production of dried calyx (0.68 t ha-1) and of capsules (1.32 t ha-1), the greatest number of fruits (2.10 million ha-1) and the greatest net income (R$ 36,115.42) resulted of plants cultivated in single rows with the poultry manure covering the crops. The antioxidant activity of the hibiscus calyces showed no variation in relation with field treatments or with the method of preparation. Cultivation in single rows covered with poultry manure is adequate for the hibiscus plant.

Date: 2024
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