Journal article

Reductive soil disinfestation promotes vegetable N uptake by regulating soil gross N transformation and improving the quality of degraded soil


Authors listDan, Xiaoqian; He, Mengqiu; Chen, Shending; He, Xiaoxiang; Zhao, Chang; Meng, Lei; Cai, Zucong; Zhang, Jinbo; Müller, Christoph

Publication year2024

Pages147-160

JournalPlant and Soil

Volume number498

Issue number1-2

ISSN0032-079X

eISSN1573-5036

DOI Linkhttps://doi.org/10.1007/s11104-022-05683-z

PublisherSpringer


Abstract

Purpose: Reductive soil disinfestation (RSD) has been widely applied to improve soil degradation, enhancing vegetable N uptake and productivity. However, its effects on interactions between vegetable N uptake and soil gross N transformation remain unclear. Methods: Two degraded vegetable soils were treated with RSD and N-15 tracing pot experiments were conducted to quantify the effects of RSD on N cycling in vegetable-soil systems. Results: Vegetable NH4+ and NO3- uptake rates were 1.0-6.5 times higher following RSD than CK, while soil gross N mineralization rates (M) ranged from 0.83-13.00 mg N kg(-1) d(-1), and were significantly higher than the CK (0.21-8.71 mg N kg(-1) d(-1)). Meanwhile, autotropic nitrification rate (O-NH4) increased by 1.7-4.2 following RSD, while NH4+ immobilization rates (I-NH4) were significantly inhibited by RSD in the presence of planting. This induced a decrease in (O-NH4 + I-NH4)/M, and increases in NH4+ retention times and production rates of soil NO3- following RSD. In addition, RSD improved the overall quality of the degraded soils (increasing the pH, and decreasing EC and NO3- contents as well as pathogen abundance), further promoting vegetable N uptake. Conclusion: RSD promoted vegetable N uptake by regulating soil gross N transformation rates and improving the quality of degraded vegetable soil. However, NO3- production rates were enhanced following RSD, increasing the risk of NO3- leaching and gaseous N losses. N fertilizer management under RSD therefore requires further attention.




Citation Styles

Harvard Citation styleDan, X., He, M., Chen, S., He, X., Zhao, C., Meng, L., et al. (2024) Reductive soil disinfestation promotes vegetable N uptake by regulating soil gross N transformation and improving the quality of degraded soil, Plant and Soil, 498(1-2), pp. 147-160. https://doi.org/10.1007/s11104-022-05683-z

APA Citation styleDan, X., He, M., Chen, S., He, X., Zhao, C., Meng, L., Cai, Z., Zhang, J., & Müller, C. (2024). Reductive soil disinfestation promotes vegetable N uptake by regulating soil gross N transformation and improving the quality of degraded soil. Plant and Soil. 498(1-2), 147-160. https://doi.org/10.1007/s11104-022-05683-z


Last updated on 2025-21-05 at 17:39