[1]卢挺天,徐德福,林海芝,等.基于剩余污泥制备的鸟粪石椰壳炭混合肥对大豆生长和氮磷吸收的影响[J].江苏农业科学,2026,54(3):137-145.
 Lu Tingtian,et al.Preparation of struvitecoconut shell biochar composite fertilizer from residual sludge and its effects on nitrogen and phosphorus uptake of soybeans[J].Jiangsu Agricultural Sciences,2026,54(3):137-145.
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基于剩余污泥制备的鸟粪石椰壳炭混合肥对大豆生长和氮磷吸收的影响()

《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第54卷
期数:
2026年第3期
页码:
137-145
栏目:
耕作栽培与生理生化
出版日期:
2026-02-05

文章信息/Info

Title:
Preparation of struvitecoconut shell biochar composite fertilizer from residual sludge and its effects on nitrogen and phosphorus uptake of soybeans
作者:
卢挺天徐德福林海芝陈丝陈赞美苏静
南京信息工程大学环境科学与工程学院,江苏南京 210044
Author(s):
Lu Tingtianet al
关键词:
剩余污泥鸟粪石椰壳炭大豆氮磷吸收
Keywords:
-
分类号:
X703;S565.106
DOI:
-
文献标志码:
A
摘要:
剩余污泥中含有大量的氮和磷,利用剩余污泥中的氮磷制备肥料,可实现剩余污泥中氮磷的资源化利用。本研究使用流化床反应器,并添加椰壳炭从剩余污泥上清液中回收氮磷制备了鸟粪石-椰壳炭混合肥,且评价其对大豆的施肥效果。研究结果表明,制备的鸟粪石、鸟粪石-椰壳炭混合肥的氮含量分别为4.76、261 mg/g,磷含量分别为11.32、5.74 mg/g。当鸟粪石或鸟粪石-椰壳炭混合肥的施用量为100、200、300 mg/kg磷时,大豆的生长及其对氮和磷的吸收发生明显变化。与对照(CK)相比,施入鸟粪石和鸟粪石-椰壳炭混合肥均能促进大豆的发芽和根系的生长,其中,鸟粪石-椰壳炭混合肥在施磷量为200 mg/kg时,大豆的发芽率、株高及各组织鲜重和干重均最高。与施鸟粪石相比,施鸟粪石-椰壳炭混合肥后,大豆的发芽率与株高分别提高30.77%和8.16%;荚果、根、叶、茎的干重分别提高0.39%、32.72%、3.45%、19.45%。然而,随着鸟粪石-椰壳炭混合肥施用量的提高,大豆发芽率、株高及各组织鲜重和干重呈现先提高后减少的趋势。在相同施磷水平(即施磷量为100、200、300 mg/kg)下,与只施鸟粪石的处理相比,施入鸟粪石-椰壳炭混合肥后,大豆对磷的吸收总量分别提高-10.95%、19.76%、16.16%,且土壤磷含量分别提高3.96%、7.16%、5.01%。这些结果说明与施鸟粪石相比,施鸟粪石-椰壳炭有利于提高土壤中的磷含量,促进植物对磷的吸收,提高磷的利用率,因此通过采用流化床并添加椰壳炭回收剩余污泥中的氮磷制备鸟粪石-椰壳炭混合肥,能提高大豆对磷的利用率。
Abstract:
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备注/Memo

备注/Memo:
收稿日期:2025-03-27
基金项目:江苏高校“青蓝工程”项目(编号:20161507);江苏省“六大人才高峰”项目(编号:JNHB-057)。
作者简介:卢挺天(2000—),男,浙江金华人,硕士研究生,主要从事污泥养分循环利用研究。E-mail:202212120003@nuist.edu.cn。
通信作者:徐德福,博士,教授,主要从事固废资源化利用研究。E-mail:defuxu1@163.com。
更新日期/Last Update: 2026-02-05