Claim · model-written summary
Soil electrical conductivity was the dominant yield constraint, with a standardized coefficient of -0.69, rather than water and nutrients.
Triticum aestivumVerbatim
e0“explore the mechanisms by which biochar affects wheat yield in coastal saline soils of northern China”
e3“Stepwise regression identified soil electrical conductivity (EC) as the dominant yield constraint (standardized coefficient = −0.69)”
Title
Tong Liu; Shengchao Hu; Xinliang Dong; et al. Agriculture 2026. doi:10.3390/agriculture16080911
Other claims from this paper (7)
- Intervention effect Biochar application significantly increased soil organic carbon content.
- Observation Biochar induced marked spatial heterogeneity of SOC across the field, with a coefficient of variation of 30.2%.
- Association A quadratic relationship was observed between SOC and EC.
- Association SOC was associated with higher yield through reduced bulk density (path coefficient = -0.603).
- Association High SOC levels were associated with increased EC in this coastal saline field setting (path coefficient = 0.243).
- Association Peak wheat yield occurred at an SOC threshold of 13.87 g kg−1, which exceeded the point of minimum salinity at 11.71 g kg−1.
- Recommendation The agronomic benefit of biochar in saline soils depends on keeping application within an estimated beneficial buffering zone.