Results 21 to 30 of about 1,461,675 (351)

Improving Lowland Rice (O. sativa L. cv. MR219) Plant Growth Variables, Nutrients Uptake, and Nutrients Recovery Using Crude Humic Substances

open access: yesThe Scientific World Journal, 2015
High cation exchange capacity and organic matter content of crude humic substances from compost could be exploited to reduce ammonia loss from urea and to as well improve rice growth and soil chemical properties for efficient nutrients utilization in ...
Perumal Palanivell   +4 more
doaj   +1 more source

Structural changes in lipid-free humic acids during composting of sewage sludge [PDF]

open access: yes, 2005
Structural changes in humic acids (HAs), extracted after lipid removal from sewage sludge during composting, were investigated using various chemical methods (elemental analysis, Fourier transform infrared spectroscopy and 13C-nuclear magnetic resonance
Amir, Soumia   +3 more
core   +3 more sources

Evaluation of Commercial Humic Substances and Other Organic Amendments for the Immobilization of Copper Through 13C CPMAS NMR, FT-IR, and DSC Analyses

open access: yesAgronomy, 2019
The application of organic amendments to contaminated agricultural lands can immobilize metals and improve soil conditions. The chemical structures and long-term stability of commercial humic substances and other composted organic amendments (sheep and ...
Begoña Mayans   +4 more
doaj   +1 more source

Competition from Cu(II), Zn(II) and Cd(II) in Pb(II) binding to Suwannee River Fulvic Acid [PDF]

open access: yes, 2008
This is a study of trace metal competition in the complexation of Pb(II) by well-characterized humic substances, namely Suwannee River Fulvic Acid (SRFA) in model solutions.
Chakrabarti, C.L., Chakraborty, P.
core   +2 more sources

Humic substances of differently matured composts produced from municipal solid wastes and biomass of energetic plants

open access: yesSoil Science Annual, 2019
The aim of the study was to assess the transformation of humic substances during composting of biomass of energetic plants and municipal solid waste. The type of the organic material to be composted and the type of technology used affect the course of ...
Kałuża-Haładyn Andrea   +2 more
doaj   +1 more source

Chirality and the origin of atmospheric humic-like substances [PDF]

open access: yes, 2010
Aerosol water extracts and atmospheric humic-like substances (HULIS) obtained from PM2.5-fraction aerosol samples collected in a rural/continental background environment and in an urban environment in spring and summer, and at a tropical site that was ...
Maenhaut, Willy   +4 more
core   +3 more sources

Extraction of humic acid by coacervate: Investigation of direct and back processes [PDF]

open access: yes, 2012
The two aqueous phases extraction process is widely used in environmental clean up of industrial effluents and fine chemical products for their reuse.
Derriche, Zoubir   +4 more
core   +3 more sources

A call for refining the role of humic-like substances in the oceanic iron cycle

open access: yesScientific Reports, 2020
Primary production by phytoplankton represents a major pathway whereby atmospheric CO 2 is sequestered in the ocean, but this requires iron, which is in scarce supply.

semanticscholar   +1 more source

Destruction of Surfactants and Humic Substances in Plazma-Chemical Reactor

open access: yesНаукові вісті Національного технічного університету України "Київський політехнічний інститут", 2018
Background. Wastewater treatment from surfactants and humic substances is an actual and not fully resolved environmental problem. Surfactants are one of the most dangerous pollutants of natural water bodies, which are sources of domestic and industrial ...
Vladislav V. Goncharuk   +2 more
doaj   +1 more source

The Effect of Humic Substances as an Organic Supplement on the Fattening Performance, Quality of Meat, and Selected Biochemical Parameters of Rabbits

open access: yesLife, 2022
In this study, we assessed the effect of humic substances, as an organic supplement in feed, on the fattening performance, meat quality and selected lipid and mineral parameters from the blood serum of rabbits.
Zuzana Lacková   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy