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Ciência e Agrotecnologia
Print version ISSN 1413-7054
FONSECA, Elda Bonilha Assis; PASQUAL, Moacir and CARVALHO, Janice Guedes de. Concentration of macronutrients in sweet passion fruit cuttings as a function of liming. Ciênc. agrotec. [online]. 2004, vol.28, n.6, pp. 1269-1277. ISSN 1413-7054. http://dx.doi.org/10.1590/S1413-70542004000600007.
Aiming to study the effect of the liming on the concentration of macronutrients in sweet passion fruit cuttings (Passiflora alata Curtis), until 150 days after germination, a experiment was carried out in the greenhouse the Federal University of Lavras. The statistical design used was randomized blocks in a factorial scheme (2 x 4) + 2, with four replications. The treatments were two soil classes (Dystrophic Red-Yellow Latosol - LVAd and Dystrophic Red Latosol - LVd), four base saturation levels (40, 60, 80 and 100%) and two more additional treatments, LVAd without liming and LVd without liming. After 150 days, the dry matter of shoots and roots and the macronutrients contents in the shoots dry matter were evaluated. It was concluded that the increase of base saturation levels increase the contents of P, Mg and S in the shoots dry matter of passion fruit cuttings, for both soil classes. The contents of Ca and K in shoots dry matter of passion fruits growing in LVd, increase and decrease respectively, and no response in the LVAd.
Keywords : Base saturation; passion fruit; Passiflora alata; latossol.