Results 21 to 30 of about 88,372 (312)

Effect of nitroxin and humic acid on yield and yield components of faba bean [PDF]

open access: yesJournal of Agricultural Sciences (Belgrade), 2015
Quality and quantity improvement of crops using organic matter and low-cost method in the field is very important. Bio-fertilizer nitroxin and humic acid can increase root and shoot biomass through improved intake of nutrition and they can lead ...
Kholdi Abolfazl   +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

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

Bioavailability and trophic transfer of humic-bound copper from bacteria to zooplankton [PDF]

open access: yes, 1999
: The effect of humic acid (HA) on uptake and transfer of Cu by selected marine organisms from the microbial loop was determined. Bacteria grown with and without 15 µg Cu l-1 and with and without 10 mg Suwannee River Humic Acid (SRHA) l-1 were fed to ...
Lores, Emile M., Pennock, Jonathan
core   +3 more sources

Effect of Humic Acid on Adsorption of Polychlorinated Biphenyls onto Organoclay [PDF]

open access: yes, 2009
Mitigation of risks stemming from contaminated sediments in freshwater and estuarine environments remains an important challenge to the field of environmental science and engineering.
Gardner, Kevin H.   +4 more
core   +2 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

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

Study on Lignite Humic Acids(III)On the Nitro Humic Acids.

open access: yesJournal of the Fuel Society of Japan, 1955
亞炭フミン酸から諸種の條件によりニトロフミン酸の製造を行い, 各種條件で得られたニトロフミン酸の性質からフミン酸に対する硝酸の作用の概要を調べた。その結果フミン酸に対する硝酸の作用の最大のものは酸化反応であり, 加水分解反応もまた大きな作用であることを知つた。また酸化反応はフミン酸構成単位の脂肪族鎖を切断する方向に進行する。このことは稍々多量に製造したニトロフミン酸につきその示性式を求めることにより, さらに明白となつたまた。従来フミン酸と稍酸の反応で全く見落されていたシアン化水素並びにアンモニヤの生成を知り, その定量を行い, それらの生成がフミン酸のフェノール性に基くことを推定した。またフミン酸とジアゾメタンの反応によりO-メチル化以外に一部ジアゾメタンの附加が起ることを認め ...
Kozo Higuchi   +2 more
openaire   +2 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

Copper Complexation by Dissolved Organic Matter in arid Soils: A Voltametric Study [PDF]

open access: yes, 2018
A voltammetric method was used to estimate the complexing capacity of water extracts from both desert soils sampled at the root zone of creosote and salt cedar plants, and in soils from interspace or background regions where no vegetative influence was ...
Hodge, Vernon F., Steinberg, Spencer M.
core   +2 more sources

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