Results 21 to 30 of about 86,854 (308)

Bazı Organik Besin Kaynaklarının Cin Mısırın (Zea mays L. everta) Tane Verimine Etkisi

open access: yesJournal of Agricultural Sciences, 2018
This study was carried out to determine effect of sixteen different organic nutrition sources to grain yield of popcorn (Zea mays L. everta) in Çermik district of Diyarbakır province of Turkey between 2010 and 2011 years.
Haktan Cihangir, Abdullah Öktem
doaj   +1 more source

Variations in radiocarbon ages of various organic fractions in core sediments from Erhai Lake, SW China [PDF]

open access: yes, 2003
Radiocarbon dating was performed for the extracted organic fractions (cellulose-rich and humic acid fractions of plant fragment; fulvic acid, humic acid and humin fractions of humus substance) and shell from core sediments of the Erhai Lake, SW China ...
Xu, S., Zheng, G.
core   +1 more source

Alteration in elemental and functional composition of heated peat humic acids [PDF]

open access: yes, 2001
The article analyzes the effect of thermal modification of different-type peat on the alteration of elemental and functional composition of peat humic acids.
Günther, Rolf W.   +5 more
core   +3 more sources

The Anti-Inflammatory Activity of Humic Acid from Borneo Peat Soil in Mice

open access: yesMajalah Obat Tradisional, 2020
Humic acid is a humus compound found in peat soil. Humic acid can potentially be used as an anti-inflammatory compound. This study aimed to determine the effect of humic acid on the volume of foot mice edema and to find the best dose that can suppress ...
Rusliandi Rusliandi   +2 more
doaj   +1 more source

Investigation of the effect of plant density and humic acid on paddy yield, water use efficiency, and biochemical traits of direct-seeded rice cultivation (Oryza sativa L.) in northern Iran [PDF]

open access: yesفیزیولوژی محیطی گیاهی, 2022
The transition from transplanting rice cultivation to direct-seeding rice cultivation has recently begun in Iran, especially in Golestan province. No information is yet available on the effect of humic acid and plant density on paddy yield and some of ...
Manizhe Kalteh   +4 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

Growth and Yield Response of Maize (Zea mays L.) on Acid Soil to Different Rates of Humic Acid and NPK Fertilizer

open access: yesIlmu Pertanian (Agricultural Science), 2019
The main constraint in the extensification of maize on the dry land of acid soil is the low availability of P in soil. This study aimed to determine the effect and the optimal dose of humic acid on the growth and yield of maize on acid soil.
Putri Wulandari   +3 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

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

Spectroscopic and Microscopic Analysis of Humic Acid Isolated from Stabilized Leachate HSs Fractionation

open access: yesAgronomy, 2023
Refractory humic substances (HSs), which include humic and fulvic acid as well as hydrophilic portion, are the prime pollutants of stabilized landfill leachate with a concentrated color and chemical oxygen demand (COD).
Zaber Ahmed   +4 more
doaj   +1 more source

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