Results 11 to 20 of about 64,085 (311)

Concepts and Misconceptions of Humic Substances as the Stable Part of Soil Organic Matter: A Review

open access: yesAgronomy, 2018
In the last three decades, the concept of soil humic substances has been questioned in two main directions. Misinterpretations of CP MAS13C NMR spectroscopy led to the conclusion that soil organic matter is mainly aliphatic, questioning the theory of ...
Jörg Gerke
doaj   +1 more source

Influence of humic substances and biochar on the yield of cantaloupe (Cucumis melo L.) in organic management systems

open access: yesTechnology in Horticulture, 2023
Biostimulants are biological additives that are used in crop production to improve plant growth, productivity, and health. This research aimed to study the effects of cantaloupe (Cucumis melo L.) production in organic management systems influenced by ...
ZaDarreyal Wiggins   +3 more
doaj   +1 more source

Behaviours of natural organic matter in membrane filtration for surface water treatment : a review [PDF]

open access: yes, 2006
Membrane application in surface water treatment provides many advantages over conventional treatment. However, this effort is hampered by the fouling issue, which restricts its widespread application due to increases in hydraulic resistances, operational
Ismail, A. F.   +2 more
core   +1 more source

Characterization of Humic Substance Extracted from Andisols, Spodosols, Peat, and Lignite

open access: yesSains Tanah: Journal of Soil Science and Agroclimatology, 2018
Soil and other materials with high C-organic content are potential natural sources of humic substances. Until now the differences in the characteristics of such humic substances that are extracted from different sources have not been widely studied. Thus,
Eka Rahmi   +2 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

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

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

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

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

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

Home - About - Disclaimer - Privacy