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Nutrient requirements of paricá (Schizolobium parahyba var. amazonicum): optimizing seedling quality for reforestation programs

Silvio Junio RAMOS et al · Instituto Nacional de Pesquisas da Amazônia · 2022

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"Pinta" em população nativa do Estado do Amazonas

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ABSTRACT Amazonian reforestation programs emphasize the use of species native to the region. However, reforestation using native species requires the production of high-quality seedlings. The present study aimed to evaluate the development and quality of seedlings of paricá (Schizolobium parahyba var. amazonicum), a species native to the Amazon with high potential for reforestation activities. We carried out a greenhouse experiment in which seedlings were subjected to treatments with varying presence of major and micronutrients in the substrate, and evaluated the effect on functional attributes (plant height, stem diameter, specific leaf area, shoot and root dry matter) and physiological response (chlorophyll a, b and carotenoid concentrations). Our results showed that nutrient omission significantly affects paricá seedling growth. Considering the assessed biometric and physiological variables, the highest nutritional requirements of seedlings were for N, P, K, micronutrients, Mg and S, while seedling quality was maintained in the absence of Ca. Overall, this species shows efficient use of available nutrients and potential for growth in soils with low concentrations of bases. Therefore, for the production of high-quality paricá seedlings, major and micronutrients should be added and lime is essential, but the good seedling performance under Ca omission suggested that this element does not need to be added to the soil.

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APA 7

al, S. J. R. E. (2022). Nutrient requirements of paricá (Schizolobium parahyba var. amazonicum): optimizing seedling quality for reforestation programs. https://doi.org/10.1590/1809-4392202101251

MLA

al, Silvio Junio RAMOS et. "Nutrient requirements of paricá (Schizolobium parahyba var. amazonicum): optimizing seedling quality for reforestation programs." 2022. https://doi.org/10.1590/1809-4392202101251.

Chicago

al, Silvio Junio RAMOS et. 2022. "Nutrient requirements of paricá (Schizolobium parahyba var. amazonicum): optimizing seedling quality for reforestation programs.". https://doi.org/10.1590/1809-4392202101251.

Harvard

al, S. J. R. E. 2022, Nutrient requirements of paricá (Schizolobium parahyba var. amazonicum): optimizing seedling quality for reforestation programs, Instituto Nacional de Pesquisas da Amazônia, available at: https://doi.org/10.1590/1809-4392202101251 [Accessed 29 Jun. 2026].

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Título
Nutrient requirements of paricá (Schizolobium parahyba var. amazonicum): optimizing seedling quality for reforestation programs
Autor / colaboradores
Silvio Junio RAMOS et al
Editorial
Instituto Nacional de Pesquisas da Amazônia
Año de publicación
2022
ISSN
0044-5967
ISSN
0044-5967
Idioma
eng

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