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Revista Árvore

Print version ISSN 0100-6762


GONCALVES, Elzimar de Oliveira et al. Development of Dalbergia nigra (Vell.) Allemão ex Benth under different doses of calcium, magnesium and sulphur. Rev. Árvore [online]. 2014, vol.38, n.2, pp.251-260. ISSN 0100-6762.

The jacaranda (Dalbergia nigra (Vell.) Allemão ex Benth) is a specie with potential for several uses, including recovery  degraded areas. The objective of this work was to evaluate the effect of calcium, magnesium and sulfur, on the seedlings growth under different soil types. The experiment was conducted in a greenhouse from February 2006 to June 2006. The treatments were delimited according to a Baconian matrix where nutrients are varied in three different doses and two additional treatments (zero and reference). A complete randomized design with four replications was established in a total of 44 sample units. The seedlings were grown in pots with a capacity for 2.1 dm-3, and collected at 120 days after sowing and evaluated several morphological characteristics. The specie was generally undemanding regarding the application of nutrients, and the doses recommended when classified as low by the hand of fertilization. While further studies with doses lower than those tested in this,  are not made, and building on the total dry mass and conditions similar to this experiment, are indicated  doses: 0.8 cmolc dm-³ of soil Ca and 20 mg dm-³ of soil S, regardless of the test soil; and 0.2  and 0.8 cmolc dm-³ soil Mg to soils with similar characteristics to the PVAm and LVAd, respectively.

Keywords : Mineral nutrition; Native forest species; Jacaranda-da-bahia.

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