Short-term effects of microbial exopolysaccharides and chicken feather hydrolysate vs. long-term effects of plant-derived biochar on temperate, coarse-textured agricultural soils

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F25%3A00635785" target="_blank" >RIV/60077344:_____/25:00635785 - isvavai.cz</a>

Result on the web

<a href="https://bsssjournals.onlinelibrary.wiley.com/doi/10.1111/sum.70029" target="_blank" >https://bsssjournals.onlinelibrary.wiley.com/doi/10.1111/sum.70029</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/sum.70029" target="_blank" >10.1111/sum.70029</a>

Result language

angličtina

Original language name

Short-term effects of microbial exopolysaccharides and chicken feather hydrolysate vs. long-term effects of plant-derived biochar on temperate, coarse-textured agricultural soils

Original language description

Agricultural soils currently deal with a low amount of organic matter (OM) as the result of conventional practices. This study compares the effects of modern organic soil additives (microbial exopolysaccharides, chicken feather hydrolysate and plant-derived biochar) on temperate, coarse-textured agricultural soil properties. We conducted a six-month laboratory experiment in microcosms filled with coarse-textured soils (loamy sand or sandy loam) to determine the effects of additives (exopolysaccharides, hydrolysate or biochar) and their application rate (none, low or high, i.e., 0, 4 or 8 t dw ha-1, respectively) on microbial activity and biomass, nutrient availability and OM stabilization. All additives supported microbial activity and biomass, but the effects differed with the nutrient availability. Exopolysaccharides and hydrolysate, having a higher available nutrient content than biochar, increased microbial activity by 86% more than biochar shortly after application, but had no effect on microbial biomass after a six-month incubation. Biochar, on the other hand, supported microbial activity only after a longer period, corresponding to an increased microbial biomass by 49% after the six-month incubation. Neither additive showed positive effects on OM stabilization. The higher application rate of exopolysaccharides and hydrolysate, but not of biochar, showed stronger effects on the soil properties. Sandy loam soil showed stronger effects on the soil properties than loamy sand soil. Overall, the results suggest that exopolysaccharides and hydrolysate are more effective for agricultural soil improvement from the shorter-term perspective, whereas biochar is more effective from the longer-term perspective.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

40104 - Soil science

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Soil Use and Management

ISSN

0266-0032

e-ISSN

1475-2743

Volume of the periodical

41

Issue of the periodical within the volume

1

Country of publishing house

GB - UNITED KINGDOM

Number of pages

12

Pages from-to

e70029

UT code for WoS article

001412103500001

EID of the result in the Scopus database

2-s2.0-85216937949