ArticleFrontiers in plant science2026
Humic acid application improves soil quality and wheat yield in saline-alkali soils.
Article in Frontiers in plant science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Aims: Humic acid (HA), a soil conditioner, is crucial in saline-alkali soil remediation; however, its effects on saline-alkali soil quality, crop yield, and regulatory mechanisms remain unclear. Methods: A 2-year field experiment was conducted, and data from one experimental year were used in this study to explore the effects of different HA application rates (control: 0 Mg ha Results: Compared with the control, HA treatment significantly increased soil available potassium (22-45%), available phosphorus (41-53%), and soil organic matter (15-20%), and reduced soil pH (0.1-0.17 units), electrical conductivity (8-27%), chloride ions (3-45%), and sulfate ions (7-34%) in the 0-40 cm soil layer at Conclusions: These results indicate that HA application may contribute to higher wheat yield by improving soil quality and crop growth, with the most notable effects at HA7.5 and HA15 levels. Based on cost-effectiveness, 7.5 Mg ha
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