不同密度芥菜对磺胺酮污染土壤的植物修复作用

IF 0.8 Q3 Agricultural and Biological Sciences
Mariana Ferraço, A. F. Belo, F. Pires, R. Bonomo, Ademar Celin Filho
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引用次数: 3

摘要

摘要:在除草剂污染土壤的植物修复中,确定适宜的植物修复物种密度是提高修复效率的关键。因此,本研究的目的是评价芥菜密度对磺胺菊酮除草剂对污染土壤的植物修复的影响。实验是在温室中用塑料盆进行的。处理方法为芥菜密度(0、60、120和240株m-2)和磺胺酮剂量(0、200和400 g i.a. ha-1)组合处理。在盆栽上施用除草剂,然后播种用于植物修复的品种。在出芽后75天,将植株靠近地面的地方修剪并丢弃。之后,在每个盆栽中分别种植磺胺酮的生物指示剂白盆草(Pennisetum glaucum)。在没有预先栽培芥菜的情况下,白盆草的茎部和根部的鲜质量和干质量均低于预先栽培。随着芥菜密度的增加,其鲜质量和干质量均增加,且与施药剂量无关。早期种植芥菜,对被磺胺酮污染的土壤进行了修复。允许青光玉生长的芥菜最小密度为120株m-2。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Phytoremediation of Contaminated Soil with Sulfentrazone by Different Density of Crotalaria juncea
ABSTRACT: In phytoremediation programs of contaminated soil with herbicides, it is necessary to determine the appropriate density of phytoremediation species, since this practice will contribute to the efficiency of the process. The aim of this study, therefore, was to evaluate the influence of density in Crotalaria juncea on the phytoremediation of contaminated soils with the sulfentrazone herbicide. The experiment was conducted in a greenhouse using plastics pots. The treatments were the combination of density of C. juncea, (0, 60, 120 and 240 plants m-2) and doses of sulfentrazone (0, 200 and 400 g i.a. ha-1). The herbicide was applied on the pots and then the species used for phytoremediation were sown. At 75 days after emergence, the plants were cut close to the ground and discarded. Posteriorly, the bioindicator species for sulfentrazone, Pennisetum glaucum, was planted in each pot. In the absence of previous cultivation of C. juncea, the fresh mass and dry mass of shoot and root of P. glaucum were lower than those obtained with the previous cultivation. As the density of C. juncea increased, there was an increase in fresh mass and dry mass, regardless of the sulfentrazone dose applied to the soil. The earlier cultivation of C. juncea led to the remediation of the soil contaminated with sulfentrazone. The minimum density of C. juncea which allows P. glaucum to develop is 120 plants m-2.
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来源期刊
Planta Daninha
Planta Daninha Agricultural and Biological Sciences-Plant Science
自引率
0.00%
发文量
0
审稿时长
16 weeks
期刊介绍: Planta Daninha is a scientific journal published by the Brazilian Society of Weed Science (SBCPD - Sociedade Brasileira da Ciência das Plantas Daninhas). Papers submitted for publication must be sent through an electronic system, on http://www.scielo.br/pd. Works may be written in Portuguese, English, or Spanish, and will be accepted after being reviewed and approved by the Editorial Board. Only papers that have not been published or submitted for publication in other media will be accepted. Articles in Portuguese will be translated to English after being properly corrected and authorized by the authors. Planta Daninha has with goal to publish genuine technical-scientific papers and literature reviews from a critical perspective on Biology, weed management, and related topics.
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