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vol.22 issue3VARIAÇÃO SAZONAL DOS MACRO E MICROELEMENTOS NO GÊNERO HUMIRIANTHERA (ICACINACEAE), EM FUNÇÃO DA IDADEEFEITO DO TRATAMENTO DE SEMENTES DE CARDEIRO (SCLERONEMA MICRANTHUM DUCKE) COM FUNGICIDA E INSETICIDA NA GERMINAÇÃO author indexsubject indexarticles search
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Acta Amazonica

Print version ISSN 0044-5967On-line version ISSN 1809-4392

Abstract

VAREJAO, Maria de Jesus Coutinho; ZOGHBI, Maria das Graças Bichara; DINIZ, Renato Eugênio Oliveira  and  RIBEIRO, Maria Nilce de Sousa. VARIAÇÃO SAZONAL DE SULFATO, ENXOFRE TOTAL E MATÉRIA ORGÂNICA NO GÊNERO HUMIRIANTHERA,EM FUNÇÃO DA IDADE. Acta Amaz. [online]. 1992, vol.22, n.3, pp.391-397. ISSN 0044-5967.  https://doi.org/10.1590/1809-43921992223397.

Twenty eight (23) H. ampla and nine (09) H. rupestris adult and young specimens were collected to determine the levels of S04~ and total-S in leaf, stem, tuber and in the soil where they grow. In H. ampla the level of S04~ varied from 022.-078% and in H. rupestris from 0.22-138%. The level of S in H. ampla varied from 0.74-0.96% and In H. rupestris from 0.75-1.02%. The level of S04~ IH H. ampla follows the pattern leaf>tuber>stem Independent of time of year and physiological age, while in H. rupestris the pattern is tuber>leaf>stem. The 5 shows a different behavior, maintaining the pattern tuber>stem>Jeaf for H. ampla and tuber>leaf>stem for H. rupestris. In the soil where H. ampla grows no variation in level of S04~ (052%) was observed while for H. rupestris the variation was from 027-0.63% being higher in the rainy season. Due to the vegetation-soil interrelationship the levels of organic C, N, P, K, Ca, Mg, Na, Mn, Fe, Al and Zn were analyzed in the vegetative material and in the soil.

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