Utilization of Sewage Sludge as Fertilizer for Silver Vase Bromeliad
SSRN, ISSN: 1556-5068
2022
- 230Usage
- 1Captures
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Article Description
Sewage sludge in horticulture is a source of nutrients, and it can improve the physical, chemical and biological properties of soil, thus increasing crop productivity. Accordingly, this study aimed to evaluate the growth and development of silver vase bromeliad (Aechmea fasciata) cultivated in substrate with different doses of sewage sludge. To accomplish this, silver vase bromeliad plants were cultivated for 120 days in pots containing pine bark as substrate with different doses of sewage sludge (0, 18, 36, 54 or 72 g L -1 ). The experiment was carried out in a complete randomized block design consisting of five treatments and four replications with four plants per replication, totaling 80 plants. Biometric, biomass and physiological variables (chlorophyll and carotenoids), as well as macro- and micronutrient contents in leaves and substrate of each treatment, were evaluated. Sewage sludge application increased the content of macronutrients in the substrate (pine bark). Substrate fertilization with sewage sludge improved nutritional status and both physiological and morphological parameters of silver vase bromeliad. Fertilization with 72 g L -1 sewage sludge to pine bark had the best results for plant height and number of leaves.
Bibliographic Details
Elsevier BV
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