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水稻秸秆生物炭对土壤理化性质及土壤镉形态的影响 被引量:1

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摘要 本文以水稻秸秆为原料制备生物炭,通过培养试验利用生物炭对土壤重金属镉进行钝化,设置土壤不添加生物炭处理(CK)和添加5%生物炭处理(BC),研究水稻秸秆生物炭对土壤理化性质及土壤镉形态的影响。结果表明,添加水稻秸秆生物炭后,BC处理的pH显著高于CK处理,土壤阳离子交换量和有机质含量分别提高了34.7%、16.7%;相较于CK处理,BC处理的土壤镉的弱酸可提取态、可还原物质结合态所占比例分别降低了2.2%、3.9%,Cd的可氧化物质结合态、残渣态所占比例分别提高了3.3%、2.8%。水稻秸秆生物炭有效地改善了土壤理化性质,降低了镉的生物有效性。
作者 郑依虹
出处 《河南农业》 2022年第8期12-13,共2页
基金 浙江经贸职业技术学院2021年校级大学生创新项目“水稻秸秆生物炭对土壤Cd有效性及肥力的影响”(2021007)。
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