Efficiency of a mine by-product as agricultural liming material and source of zinc

IF 1.2 4区农林科学 Q2 AGRICULTURE, MULTIDISCIPLINARY Bragantia Pub Date : 2021-06-04 DOI:10.1590/1678-4499.20200466

E. Cavalli, A. Lange, L. Teixeira, C. Cavalli, Cleide Aparecida de Abreu, E. Mellis

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引用次数: 1

Abstract

ABSTRACT Most Brazilian soils have restrictions on agricultural use related to acidity and nutrient availability. This study aims to evaluate a zinc (Zn) and lead (Pb) mining by-product (Zincal™), regarding its capacity to correct soil acidity, and to serve as a source of Zn. For evaluation of its efficacy, a comparison with dolomite + Zn sulfate was conducted. The experiment was set up in two soils, a Quartzarenic Neosol and a Red Latosol, and conducted under controlled conditions in the laboratory. Treatments consisted in the application of two doses, aiming at 75 and 95% base saturation of both liming materials, as well as in a control treatment without acidity correction. The effect of said treatments on pH, base saturation, Al3+, H+Al, Ca2+, Mg2+, Zn, Mn and Pb contents were evaluated over 120 days. Similar responses were obtained from both liming materials, regarding their capacity to increase the pH of the soil, reduce Al3+ and potential acidity (H+Al), and increase base saturation. Differences observed in these attributes were dose-related. In regard to Ca and Mg, the content released in soil correlates with the content present in the liming materials. Zincal™ released more Mg and less Ca than dolomite, hence proving to be efficient in releasing Zinc.

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矿山副产品作为农业石灰材料的效率和锌的来源

摘要：大多数巴西土壤对农业用途的限制与酸度和养分的可用性有关。本研究旨在评估锌（Zn）和铅（Pb）开采副产品（Zincal™), 关于其校正土壤酸度和作为锌来源的能力。为了评价其疗效，将其与白云石+硫酸锌进行了比较。该实验在两种土壤中进行，一种是石英质新溶胶，另一种是红色Latosol，并在实验室的受控条件下进行。处理包括施用两种剂量，目标是两种石灰材料的75%和95%的碱饱和度，以及在没有酸度校正的对照处理中。在120天内评估了所述处理对pH、碱饱和度、Al3+、H+Al、Ca2+、Mg2+、Zn、Mn和Pb含量的影响。两种石灰材料在提高土壤pH值、降低Al3+和潜在酸度（H+Al）以及增加碱饱和度方面都获得了类似的响应。在这些属性中观察到的差异与剂量有关。就Ca和Mg而言，土壤中释放的含量与石灰材料中的含量相关。Zincal™ 比白云石释放更多的Mg和更少的Ca，因此被证明是有效释放锌的。

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来源期刊

Bragantia AGRICULTURE, MULTIDISCIPLINARY-

CiteScore

2.40

自引率

8.30%

发文量

审稿时长

4 weeks

期刊介绍： Bragantia é uma revista de ciências agronômicas editada pelo Instituto Agronômico da Agência Paulista de Tecnologia dos Agronegócios, da Secretaria de Agricultura e Abastecimento do Estado de São Paulo, com o objetivo de publicar trabalhos científicos originais que contribuam para o desenvolvimento das ciências agronômicas. A revista é publicada desde 1941, tornando-se semestral em 1984, quadrimestral em 2001 e trimestral em 2005. É filiada à Associação Brasileira de Editores Científicos (ABEC).