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

LI Zuoyue; ZHOU Yijie; ZHANG Yibiao; CHEN Sisi; WANG Shuo; LI Ji

doi:10.13205/j.hjgc.202506002

Volume 43 Issue 6

Jun. 2025

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LI Zuoyue, ZHOU Yijie, ZHANG Yibiao, CHEN Sisi, WANG Shuo, LI Ji. Effects of microbial nutrient stimulants on soybean nutritional quality and soil properties[J]. ENVIRONMENTAL ENGINEERING , 2025, 43(6): 13-23. doi: 10.13205/j.hjgc.202506002

Citation:

LI Zuoyue, ZHOU Yijie, ZHANG Yibiao, CHEN Sisi, WANG Shuo, LI Ji. Effects of microbial nutrient stimulants on soybean nutritional quality and soil properties[J]. ENVIRONMENTAL ENGINEERING , 2025, 43(6): 13-23. doi: 10.13205/j.hjgc.202506002

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

doi: 10.13205/j.hjgc.202506002

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

Received Date: 2024-12-25
Accepted Date: 2025-04-08
Rev Recd Date: 2025-04-01

Abstract

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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References(52)

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