NUTRITIONAL ASSESSMENT OF CEDAR SEEDLINGS (Cedrela fissilis; Vell.) GROWN IN A GREENHOUSE

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Patrícia Aparecida de Souza Nelson Venturin Renato Luiz Grisi de Macedo Regis Pereira Venturin Carlos Alberto Franco Tucci Leandro Carlos

Abstract

This work hat the objective of investigate the nutritional requirements of Cedar (Cedrela fissilis) species. The experiment was performed in a greenhouse to assess effects of complete fertilization and of fertilization with missing nutrients on seedling development. The experiment consisted of 10 treatments and 5 replications in a complete randomized block design. Vases with a capacity for5 kg of soil were used, with one plant unit per vase and a red-yellow latosol substratum of poor fertility, applying the following treatments: one complete treatment with N, P, K, Ca, Mg, S, B and Zn; eight treatments, each with one missing nutrient (-N, -P, -K, -Ca, -Mg, -S, -B and -Zn), and one control treatment with natural substratum. It was assessed shoot height, stem base diameter and dry matter yield at 110 days after planting. Results demonstrated that N and P are the most limiting nutrients for the development of the species. Considering these limitations and defining shoot dry matter yield in the complete treatment as a parameter, the nutrient requirements of cedar seedlings were as follows, in decreasing order: P > N > K > B > S > Ca > Zn > Mg.

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How to Cite
SOUZA, Patrícia Aparecida de et al. NUTRITIONAL ASSESSMENT OF CEDAR SEEDLINGS (Cedrela fissilis; Vell.) GROWN IN A GREENHOUSE. CERNE, [S.l.], v. 15, n. 2, p. 236-243, may 2015. ISSN 2317-6342. Available at: <http://cerne.ufla.br/site/index.php/CERNE/article/view/208>. Date accessed: 16 sep. 2019.
Keywords
Missing nutrient, Meliaceae, seedlings
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Article