Effect of Almond Residue Soil Amendments and Irrigation Regiment on Organic Acid Development and Transport in Soil.

ABSTRACT: Preplant soil disinfestation often relies on harmful soil fumigants; however, the efficacy of sustainable alternatives using biomass amendment fermentation is limited to tillage depths (0-15 cm). This soil column study evaluated whether increasing the irrigation frequency could promote anaerobic pest-suppressive conditions in deeper soils by leaching biocidal fermentation products (organic acids) from surface-applied amendments. Columns received either singular (standard) or weekly irrigation. Almond hulls, an agricultural byproduct, were either incorporated 0-15 cm into soil or applied as a surface mulch. Oxygen and organic acids were measured at 4-50 cm over 21 days, and the experiment was conducted in triplicate. Anaerobic conditions (3% O₂) were achieved after 5 days, corres

SUBMITTER: Shea E 

PROVIDER: S-EPMC11409213 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature