02955naa a2200217 a 450000100080000000500110000800800410001910000200006024500930008026000090017352023500018265000140253265000140254665300210256070000170258170000240259870000200262270000200264270000150266277300600267713162832009-08-27       2009    bl uuuu     u00u1 u    #d1 aSOUZA, P. A. de  aNutritional assessment of cedar seedlings (Cedrela fissilis; Vell.) grown in greenhouse.  c2009  aThis work had 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 for 5 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 &gt N &gt K &gt B &gt S &gt Ca &gt Zn &gt Mg. This work had 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 for 5 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 &gt N &gt K &gt B &gt S &gt Ca &gt Zn &gt Mg.  aseedlings  aMeliaceae  aMissing nutrient1 aVENTURIN, N.1 aMACEDO, R. L. G. de1 aVENTURIN, R. P.1 aTUCCI, C. A. F.1 aCARLOS, L.  tCerne, Lavrasgv. 15, n. 2, p. 236-243, abr./jun. 2009.