Publications by authors named "Jingxiang Hou"
Atmospheric elevated CO concentration ([CO]) decreases plant nitrogen (N) concentration while increasing water use efficiency (WUE), fertigation increases crop nutrition and WUE in crop; yet the interactive effects of [CO] coupled with two N-fertigation levels during deficit irrigation on plant gas exchange, root morphology and WUE remain largely elusive. The objective of this study was to explore the physiological and growth responses of ambient [CO] ([CO], 400 ppm) and [CO] (800 ppm) tomato plant exposed to two N-fertigation regimes: (1) full irrigation during N-fertigation (FIN); (2) deficit irrigation during N-fertigation (DIN) under two N fertilizer levels (reduced N (N1, 0.5 g pot) and adequate N (N2, 1.
View Article and Find Full Text PDFArticle Synopsis
- - The study investigated how biochar amendment and reduced irrigation methods impact sodium and potassium uptake, root structure, water efficiency, and salinity resistance in cotton plants through both adsorption and pot experiments.
- - In the adsorption experiment, it was discovered that wheat straw biochar (WSP) had a higher sodium adsorption capacity compared to softwood biochar (SWP), following the Langmuir isotherm model.
- - The pot experiment revealed that while salinity stress negatively affected potassium levels and root characteristics, biochar amendments, especially WSP with partial root-zone drying irrigation, improved root morphology and nutrient balance, enhancing resilience to drought and salinity in cotton cultivation.
Introduction: Biochar amendment provides multiple benefits in enhancing crop productivity and soil nutrient availability. However, whether biochar addition affects root morphology and alters plant nutrient uptake and shoot growth under different irrigation regimes remain largely unknown.
Methods: A split-root pot experiment with maize ( L.