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Do applications of soil conditioner mixtures improve the salt extraction ability of Atriplex nummularia at early growth stage?
International Journal of Phytoremediation ( IF 3.7 ) Pub Date : 2019-10-17 , DOI: 10.1080/15226514.2019.1678109
Larissa de Sá Gomes Leal 1 , Luiz Guilherme Medeiros Pessoa 1 , Jéssica Patrícia de Oliveira 1 , Natália Alves Santos 1 , Luiz Filipe Dos Santos Silva 1 , Genival Barros Júnior 1 , Maria Betânia Galvão Dos Santos Freire 2 , Eduardo Soares de Souza 1
Affiliation  

The reclamation of salt-affected soils is considered a slow process that urges the development of faster recovery strategies as a priority. The present article aimed at investigating the effect of mixing different chemical and organic conditioners on the growth of Atriplex and its salt extraction efficiency during its early growth stage. A pot experiment was conducted on saline-sodic Cambisol cultivated with Atriplex for 60 days and subjected to the following conditioner mixtures: Atriplex; Atriplex + gypsum + organic matter; Atriplex + elemental sulfur + organic matter; and Atriplex + gypsum + elemental sulfur + organic matter. The mixtures of conditioners did not affect the Atriplex growth, but caused significant increase in Na+ and Cl- contents in the dry matter of Atriplex plants. Additionally, there was an increase in the Atriplex's ability of extracting salt due to the application of the mixtures. Results suggest that the "gypsum + organic matter" mixture is preferable for a faster recovery of salts/sodium affected soils through phytoremediation by Atriplex plants, mainly due to a more significant increase in the efficiency of salt absorption.

中文翻译:

施用土壤改良剂混合物是否能改善生长早期的滨藜植物的盐分提取能力?

受盐影响的土壤的复垦被认为是一个缓慢的过程,这促使优先发展更快的恢复策略。本文旨在研究混合不同化学和有机调节剂对滨藜的生长及其在早期生长阶段的盐提取效率的影响。在用Atriplex培养60天的盐碱Cambisol上进行盆栽实验,并对其进行以下调理剂混合:滨藜+石膏+有机质; 滨藜+元素硫+有机物; 滨藜+石膏+元素硫+有机物。调节剂的混合物不会影响滨藜的生长,但是会导致滨藜植物的干物质中Na +和Cl-含量显着增加。此外,Atriplex的数量有所增加 由于施加了混合物,因此具有提取盐的能力。结果表明,“石膏+有机物”混合物对于通过Atriplex植物进行植物修复来更快地恢复受盐/钠污染的土壤是优选的,这主要是由于盐吸收效率的显着提高。
更新日期:2020-04-20
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