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标题：Influence of parent material on organic phosphorus fractions in vineyard soils in Santa Catarina, Brazil
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作者：Shirlei Almeida Assunção ; Marcos Gervasio Pereira ; Denilson Dortzbach 等
期刊名称：Revista Ambiente & Água
印刷版ISSN：1980-993X
出版年度：2020
卷号：15
期号：5
页码：1-13
DOI：10.4136/ambi-agua.2546
出版社：Instituto de Pesquisas Ambientais em Bacias Hidrográficas
摘要：Phosphorus (P) is an essential element for vineyard productivity.This study assessed the influence of parent material on organic P fractions in vineyard soils of basaltic and rhyodacitic origin.The experiment was conducted in four municipalities located in mountainous regions in Santa Catarina, Brazil: Urubici, São Joaquim, Campos Novos, and Água Doce.Disturbed soil samples were collected between grapevine rows at depths of 0.00–0.05, 0.05–0.10, 0.10–0.20, and 0.20–0.40 m.Soil chemical attributes (pH in H2O, Ca2 , Mg2 , Al3 , P, K , and H Al), total organic carbon (TOC), available and residual P, labile P (extracted with sodium bicarbonate), moderately labile P (extracted with sulfuric acid), and moderately resistant P (extracted with sodium hydroxide) were determined.Soil parent material influenced the dynamics of phosphorus in vineyard soils.Both P forms (available and solution equilibrium P) and P organic fractions (labile, moderately labile, and moderately resistant P), are affected by the parent material.Basaltic soils had higher TOC, available and residual P, and moderately labile and moderately resistant P, whereas rhyodacitic soils showed higher labile P.The high levels of moderately labile and moderately resistant P fractions in basaltic soil were attributed to its high TOC, available P, and residual P contents.Parent material was found to influence organic P fractions in vineyard soils.
关键词：grapevine; organic carbon; soil acidity; soil management; wine.