This study demonstrates improved grain yield and water use efficiency in sandy soil with organic materials and clay, suggesting effective soil management strategies.
Key Points
Organic amendments significantly increased grain yield by 19%–37% and water use efficiency by 19%–41%.
The introduced clay showed greater improvements, raising grain yield by 2385–5016 kg ha −1 and water use efficiency by 4.1–9.5 kg ha −1 mm −1.
Sandy soil with around 16% silt and clay content exhibited stable grain yield and reduced soil organic matter decomposition.
The synergistic use of organic materials and clay offers a sustainable strategy for enhancing sandy farmland.