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Dynamics of experimental plantations of Tachigali vulgaris in response to fertilization and soil texture

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Abstract

The diversification of species for bioenergy silviculture in Amazonia will help several local and/or regional industrial segments. Thus, the expansion of knowledge on silvicultural practices of Tachigali vulgaris will support future commercial-scale plantations in Amazonia. This study aimed to evaluate possible differences in diameter, height, and wood volume of T. vulgaris trees grown under different nutritional doses, on two soil texture classes. In addition, we sought to determine the appropriate nutritional dose for the studied types of soil texture aiming at the production of energy wood. The study was conducted in two experimental areas of 1.6 ha each, located in the municipality of Almeirim – Pará, Brazil. Independent analyses were performed in both experimental areas at each age. The experiments were set up in a randomized block design with four blocks. A factorial scheme considering four phosphorus and three potassium doses were adopted, totaling 12 treatments. The diameter at 1.30 m (DBH), equivalent diameter, total height of the trees, and the commercial wood volume with bark per hectare (Vwb ha−1) were evaluated. A significant effect of nutrient doses was reported on DBH at the age of 2 years for the soil with a sandy loam texture. The Vwb ha−1 of the trees at 4, 5, and 6 years old was significantly affected by fertilization in clayey soils. Under the conditions of the present study, the nutritional doses of 0 kg ha−1 of triple superphosphate and 172 kg ha−1 of potassium chloride are recommended for the area with Oxisol of sandy loam texture and 195 kg ha−1 of triple superphosphate and 343 kg ha−1 of potassium chloride are recommended for the area with Oxisol of clayey texture.

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Datasets that support the conclusions are included in the manuscript. In addition, the datasets analyzed in this research are available from the corresponding author upon request.

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Acknowledgements

The authors express their sincere thanks to the National Council for Scientific and Technological Development (CNPq; processes no. 306793/2019-9 and no. 304165/2022-0), Coordination for the Improvement of Higher Education Personnel (CAPES; financing codes 001, no. 88887.199858/2018-00, and Edital Procad Amazônia 2018 - process no. 88881.199859/2018-01), Embrapa Eastern Amazonia, and Jari Group for funding the research.

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RACT and TdPP: Conceptualization, Methodology, Investigation, Roles/Writing—original draft; MDRL, ARS, LJdSM, ROVdM, AFDJ, and AAVS: Methodology, Investigation, and Writing (review and editing); DdAG, MT-F, and TdPP: Supervision, Funding acquisition, and Project administration. All authors read and approved the final manuscript.

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Correspondence to Michael Douglas Roque Lima.

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Teixeira, R.A.C., Lima, M.D.R., Silva, A.R. et al. Dynamics of experimental plantations of Tachigali vulgaris in response to fertilization and soil texture. New Forests (2023). https://doi.org/10.1007/s11056-023-09999-1

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  • DOI: https://doi.org/10.1007/s11056-023-09999-1

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