High metal contents in coffee plant organs developed in tubets with different proportions of biosolid composts and carbonized rice hulls

Brazilian Archives of Biology and Technology

Elias Franco¹  Edison Miglioranza¹  Ésio De Pádua Fonseca¹ 

[1] ,Universidade Estadual de Londrina Centro de Ciências Agrárias Departamento de AgronomiaLondrina PR ,Brazil

关键词: Coffea arabica L.;    substrate;    sewage sludge;    coffee nutrition;    coffee seedling;   

DOI  :  10.1590/S1516-89132004000400002

来源: SciELO

【 摘 要 】

The objective of this study was to analyze the effect of biosolid composts (BC) and carbonized rice hull (RH) on the production of Coffea arabica L. cv Catuaí Vermelho seedlings (IAC H 2077-2-5-99) grown in tubets. A totally randomized experimental design with five treatments and four replications was conducted in a nursery, to evaluate Co, Ni, Cr, Pb, Cu, Mn and Zn contents in roots, stems and leaves. Higher contents of Cr, Co, Ni, Pb, Cu and Zn were found in roots, while leaves carried the highest content of Mn. Zn in leaves went from average to high in plants developed in BC. In plants developed in RH. Mn content was about four times higher than the adequate concentration. Ni, Co, Cr, Pb and Cu contents found in leaves were considered normal, according to international standards. The best treatment for coffee seedling nutrition was 50% RH + 50% BC.

【 授权许可】

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