Nanohumic Acid Enhances Maize Yield by Modulating Soil Bacterial Communities and Grain Tryptophan Metabolism: A Novel Plant Biostimulant.
Maize (Zea mays L.) is a major staple crop worldwide and plays a critical role in food security. Although humic acid (HA) is widely used to improve crop productivity, its effectiveness is often limited by poor dispersibility and bioavailability. Herein, nanohumic acid (NHA) with improved dispersibility was synthesized,...