APPLICABILITY OF FLY ASH, INTERMEDIATE MATERIAL, AND ZEOLITE FOR IMPROVING SOIL FERTILITY AND YIELD OF TWO IRANIAN RICE CULTIVARS GROWN IN CADMIUM-CONTAMINATED SOIL

IF 0.9 4区 环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES Carpathian Journal of Earth and Environmental Sciences Pub Date : 2023-06-30 DOI:10.26471/cjees/2023/018/256
Ahlam MALEK NASERI, Shahram Goudarzi, Abdolamir Yusefi, A. Afrous, A. Borzou
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Abstract

Cadmium (Cd) as a highly toxic heavy metal can cause seriously harmful to human health. The present study aimed to investigate the effects of fly ash, intermediate materials, and zeolite on the yield performance of two cultivars of Iranian rice (Anbarbo and Champa) and the remediation of Cd-contaminated soil. The experiment was carried out in two crop years, 2019-2020 and 2020-2021, in both forms of field and pot cultivation. The research treatments included fly ash, intermediate materials, zeolite, and genotype. Plant variables were analyzed by a split-plot method as a randomized complete block design, and soil variables were analyzed by a random complete block method. Results showed that intermediate material was significantly associated with dry weight, biomass, root Cd content, stem Cd content, seed Cd content, and rice yield (p<0.01). Genotype also significantly affected dry weight, biomass, root Cd content, and rice yield (p<0.01), and the Champa variety had the highest yield. The field and pot experiment results showed that the intermediate material was significantly associated with the highest amount of dry weight and the lowest amount of root, stem, and seed Cd content. Fly ash significantly increased soil pH, cation exchange capacity, phosphorus, and reduced soil Cd content (p<0.01). However, the highest amount of available soil potassium was observed in the zeolite treatment. The impact of zeolite on contaminated soil needs further exploration. In conclusion, this study suggested that one of the beneficial strategies to improve rice yield and the fertility of contaminated soils is using waste materials such as fly ash and its derivatives.
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粉煤灰、中间材料和沸石对镉污染土壤中两种伊朗水稻改良土壤肥力和产量的适用性
镉(Cd)作为一种剧毒重金属,会对人体健康造成严重危害。本研究旨在研究粉煤灰、中间材料和沸石对两个伊朗水稻品种(Anbarbo和Champa)产量性能的影响以及对镉污染土壤的修复。该试验在2019-2020和2020-2021两个作物年进行,采用田间和盆栽两种形式。研究处理包括粉煤灰、中间材料、沸石和基因型。植物变量采用分块法作为随机完全块设计进行分析,土壤变量采用随机完全块法进行分析。结果表明,中间物质与水稻干重、生物量、根Cd含量、茎Cd含量、种子Cd含量和产量显著相关(p<0.01),基因型对水稻干重和生物量、根系Cd含量和水稻产量也有显著影响(p<0.01)。田间和盆栽试验结果表明,中间材料与最高干重和最低根、茎和种子Cd含量显著相关。粉煤灰显著提高了土壤pH值、阳离子交换能力、磷含量,降低了土壤Cd含量(p<0.01)。但沸石处理的土壤有效钾含量最高。沸石对污染土壤的影响需要进一步探索。总之,本研究表明,利用粉煤灰及其衍生物等废料是提高水稻产量和污染土壤肥力的有益策略之一。
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来源期刊
CiteScore
2.30
自引率
25.00%
发文量
42
审稿时长
12-24 weeks
期刊介绍: The publishing of CARPATHIAN JOURNAL of EARTH and ENVIRONMENTAL SCIENCES has started in 2006. The regularity of this magazine is biannual. The magazine will publish scientific works, in international purposes, in different areas of research, such as : geology, geography, environmental sciences, the environmental pollution and protection, environmental chemistry and physic, environmental biodegradation, climatic exchanges, fighting against natural disasters, protected areas, soil degradation, water quality, water supplies, sustainable development.
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