Claim · model-written summary
Nitrogen addition significantly affected soil properties, including soil pH, soil organic carbon and dissolved organic carbon, in the switchgrass field experiment.
- Taxon
- switchgrass
Panicum virgatumt0 - Treatment
- N additione0
- Outcome
- soil properties, including soil pH, soil organic carbon (SOC), and dissolved organic carbon (DOC)e0
Not reportedComparatorDirection
Verbatim
t0“Lowland-ecotype switchgrass (Panicum virgatum L.)”
e0“N addition significantly affected soil properties, including soil pH, soil organic carbon (SOC), and dissolved organic carbon (DOC)”
Title
Hongyuan Huang; Xiaokang Ni; Kang Lin; et al. Industrial Crops and Products 2026. doi:10.1016/j.indcrop.2026.123021
Other claims from this paper (8)
- Observation The lowland ecotype under moderate N produced biomass yields 1.89-2.32 times greater than the upland ecotype.
- Observation The maximum biomass yield reached 31.33 Mg per hectare.
- Intervention effect Moderate N addition enhanced microbial enzyme activities involved in C and N acquisition, particularly in lowland switchgrass.
- Mechanism Enhanced enzyme activities under moderate N increased microbial carbon and N use efficiency and directly promoted biomass production.
- Association Biomass yield was significantly positively correlated with soil organic carbon, dissolved organic carbon, total N and enzyme activities.
- Intervention effect Moderate N addition notably enhanced ecosystem multifunctionality.
- Observation The lowland ecotype showed a 16.8-fold increase in ecosystem multifunctionality compared with the upland ecotype.
- Recommendation Selecting the lowland ecotype with moderate N can substantially enhance switchgrass productivity, soil carbon sequestration and ecosystem multifunctionality in acidic soils.