微生营养激励素对大豆营养品质及土壤性质的影响

李左月; 周一杰; 张毅彪; 陈思思; 王硕; 李激

doi:10.13205/j.hjgc.202506002

微生营养激励素对大豆营养品质及土壤性质的影响

doi: 10.13205/j.hjgc.202506002

李左月¹,
周一杰¹,
张毅彪¹,
陈思思¹,
王硕^1,2,
李激^1,2, ,

1. 江南大学环境与生态学院江苏省厌氧生物技术重点实验室, 江苏无锡 214122;
2. 江苏省高校水处理技术与材料协同创新中心, 江苏苏州 215009

详细信息

作者简介:
李左月（1998—），女，硕士研究生，主要研究方向为污泥土地利用。6221403007@stu.jiangnan.edu.cn

通讯作者:
李激（1970—），女，博士，教授，主要研究方向为污泥处理处置与资源化。liji@jiangnan.edu.cn

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出版历程
- 收稿日期: 2024-12-25
- 录用日期: 2025-04-08
- 修回日期: 2025-04-01

Effects of microbial nutrient stimulants on soybean nutritional quality and soil properties

LI Zuoyue¹,
ZHOU Yijie¹,
ZHANG Yibiao¹,
CHEN Sisi¹,
WANG Shuo^1,2,
LI Ji^{1,2
, ,}

1. Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environment and Ecology, Jiangnan University, Wuxi 214122, China;
2. Jiangsu College Water Treatment Technology and Material Collaborative Innovation Center, Suzhou 215009, China

摘要

摘要: 微生营养激励素（MNS）是由活性污泥通过碱热水解技术分离萃取得到的产品，富含植物必需营养元素（C、N、P、K）和激励素物质，能够同时实现污泥资源化处理和农业可持续发展。设置空白对照（CK）、化肥（CF）和微生营养激励素（MNS）试验组，评估了MNS对大豆品质和土壤质量的协同提升效应。与CF相比，施用MNS大豆籽粒中蛋白质、脂肪酸和氨基酸分别提高了1.71%、17.96%、10.58%。同时，MNS施用提高了土壤有机质（+13.73%）、速效磷（+28.66%）和速效钾（+44.18%）含量，但降低了铵态氮含量（-10.34%）。MNS可调控根际微生物群落，富集Azohydromonas、Chloroflexaceae和Sphingomonas等功能菌群，提升根际花生四烯酸、色氨酸和豆甾醇等代谢物丰度，以此促进根际碳氮循环和养分释放。研究表明，施用MNS能够调节大豆根系－土壤－微生物的相互作用，进而提高大豆品质和土壤质量。
- 微生营养激励素 /
- 营养品质 /
- 土壤改良 /
- 根际微生物群落 /
- 根际土壤代谢
Abstract: Microbial nutrient stimulant （MNS） is a product separated and extracted from activated sludge through alkaline thermal hydrolysis technology， which is rich in plant essential nutrients （C， N， P， K） and stimulant substances， thereby enabling sludge resource treatment and sustainable agricultural development simultaneously. This study established three treatments： blank control （CK）， chemical fertilizer （CF）， and microbial nutrient stimulants （MNS）， to evaluate the synergistic enhancement effects of MNS on soybean quality and soil quality. The results showed that， compared with CF， MNS improved the yield and quality of soybean. Specifically， protein， fatty acid， and amino acid content in soybean grains increased by 1.71%， 17.96% and 10.58%， respectively. Moreover， the MNS application also improved soil fertility， with increases in organic matter （+13.73%）， available P （+28.66%）， and available K （+44.18%）， while ammonium nitrogen content decreased （-10.34%）. The MNS modulated the rhizosphere microbiome， enriching functional taxa such as Azohydromonas， Chloroflexaceae， and Sphingomonas， thereby increasing the abundance of rhizosphere metabolites， including arachidonic acid， tryptophan， and stigmasterol. This enhancement promoted carbon-nitrogen cycling and nutrient release in the rhizosphere. The study demonstrates that applying MNS can regulate the interactions among soybean roots， soil， and microorganisms， thereby improving both soybean quality and soil health.
- microbial nutrient stimulant /
- nutritional quality /
- soil amendment /
- rhizosphere microbial community /
- rhizosphere soil metabolism

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