Results 51 to 60 of about 3,644 (182)

Phosphorus adsorption and release dynamics in calcareous soil as affected by humic and fulvic acids

Journal of Degraded and Mining Lands Management
Humic and fulvic acids play a crucial role in enhancing phosphorus retention in calcareous soils. These organic acids increase phosphorus fixation on soil surfaces, thereby strengthening its binding and modifying its availability in the soil solution ...
Aswad H. Aswad, Mohammed M. Hamid, Mohammad Tarkhan Abo Almeekh, Mohammed R. Ajeel   +3 more
doaj   +1 more source

Long‐Term Effects of a Dietary Humic Substance–Butyrate Blend, and Yeast Cell Wall on Growth Performance, Immune Status and Gut Microbiota of Juvenile Channel Catfish Ictalurus punctatus

Aquaculture, Fish and Fisheries, Volume 6, Issue 4, August 2026.
ABSTRACT This study evaluated the long‐term effects of a dietary humic substance and butyrate blend (HSB) alone or with yeast cell wall (Beta‐MOS) in channel catfish. Around 1440 fish (31.31 ± 0.24 g) were distributed among 12 outdoor tanks in a pond‐supplied flow‐through design. Four dietary treatments were evaluated in triplicate: Diets containing no
Abdulmalik A. Oladipupo, Anita M. Kelly, D. Allen Davis, Benjamin H. Beck, Luke A. Roy, Timothy J. Bruce   +5 more
wiley   +1 more source

Bioavailability of Heavy Metals in the Sediment of the High Andean Wetland Collotacocha - Recuay – Ancash

Revista de Metalurgia
The objective of this study is to analyze the relationship between the concentrations of humic and fulvic acids and the bioavailability of heavy metals in the sediment of the Altoandino Collotacocha wetland.
Mario Vladimir Leyva Collas, Antonio Manuel Otoya Zelada   +1 more
doaj   +1 more source

Humic Substances from sediments of Lobos Pond (Argentina). Isolation, Characterization and Limnological Implications

Eclética Química, 2018
Humic substances (HS) were isolated from the sediments of Lobos Pond (Argentina) using mild conditions to preserve their native structure. The HS (humic and fulvic acids) were characterized by means of elemental analysis and FTIR spectroscopy.
Roberto G. Choconi, Alberto A. Ghini, Victor H. Conzonno, Alicia Fernández Cirelli   +3 more
doaj   +1 more source

Iron Physiology and Its Impact on Atopic Diseases: An EAACI Taskforce Report

Allergy, Volume 81, Issue 8, Page 2675-2712, August 2026.
ABSTRACT Iron is essential for oxygen transport, energy metabolism, and immune regulation. Yet iron deficiency is the most common micronutrient disorder across all age groups, affecting nearly one quarter of the global population. Iron deficiency triggers nutritional immunity, a host defense mechanism that withholds and redistributes iron, contributing
Franziska Roth‐Walter, Ioana Agache, Beatriz Cabanillas, Roberto Berni Canani, Pasquale Comberiati, Holger Garn, Cristina Gomez‐Casado, Karin Hufnagl, Ekaterina Khaleva, Gregorio P. Milani, Daniel Munblit, Nikolaos Douladiris, Liam O'Mahony, Frank Redegeld, Carmen Riggioni, Peter K. Smith, Betty van Esch, Emilia Vassilopoulou, Carina Venter, Diego G. Peroni   +19 more
wiley   +1 more source

Research on Fluorescence Spectroscopy Characteristics of Dissolved Organic Matter of Landfill Leachate in the Rear Part of Three Gorges Reservoir

Journal of Spectroscopy, 2015
Three-dimensional fluorescence and infrared spectroscopy analysis of the leachate dissolved organic matter (DOM) of the Three Gorges was reported in spring, summer, and autumn seasons, respectively.
Zhigang Xie, Wei Guan
doaj   +1 more source

The influence of pre-sowing seed treatment by biologically active compounds on soybean seed quality and yield

Plant, Soil and Environment, 2016
The aim of the experiment was to improve seed quality of harvested soybean seed by pre-sowing seed treatment with biologically active compounds Lignohumate B (mixture of humic and fulvic acids), Lexin (mixture of humic and fulvic acids enriched by auxins)
P. Procházka, P. Štranc, K. Pazderů, J. Štranc   +3 more
doaj   +1 more source

Hydrothermal Humification of Biomass for Circular Carbon Management in Sustainable Agro‐Ecosystems

Advanced Science, Volume 13, Issue 41, 22 July 2026.
This article provides a comprehensive overview of biomass hydrothermal humification for building sustainable agro‐ecosystems. It examines the chemical transformation mechanisms and the functional benefits of the produced humic acids in soil remediation.
Ziyun Liu, Zonglu Yao, Yuanhui Zhang, Huiyan Zhang, Lixin Zhao   +4 more
wiley   +1 more source

Direct and indirect photolysis of triclocarban in the presence of dissolved organic matter

Elementa: Science of the Anthropocene, 2015
Photolysis is an important attenuation pathway for the removal of wastewater effluent organic micropollutants from surface waters. In this work, direct and indirect processes leading to the degradation of the disinfectant, triclocarban were studied ...
Tamara D. Trouts, Yu-Ping Chin
doaj   +1 more source

Adsorption of Forever Chemical Pollutants: The Physical Chemistry of PFAS Near Surfaces

Advanced Science, Volume 13, Issue 40, 17 July 2026.
Current adsorption‐based remediation techniques for removing per‐ and polyfluoroalkyl substances (PFAS) from water are limited by knowledge gaps on PFAS behavior near solid surfaces. This review provides a state of the art on theoretical and experimental aspects of PFAS adsorption.
Nada Ben Amor, Daniela Bauer, Benjamin Braconnier, Benoit Coasne   +3 more
wiley   +1 more source