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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40104 - Soil science

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Soil Use and Management

ISSN

0266-0032

e-ISSN

1475-2743

Svazek periodika

41

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

e70029

Kód UT WoS článku

001412103500001

EID výsledku v databázi Scopus

2-s2.0-85216937949