Fulvic and humic acid fertilizers are ineffective in dry bean
نویسندگان
چکیده
منابع مشابه
Dynamic conductivity measurements in humic and fulvic acid solutions.
Conductivity changes of dilute aqueous humic and fulvic acids solutions were monitored after the addition of small quantities of Cu, Cd, Pb, and Zn. The solutions were stirred at a constant and reproducible rate, and measurements proceeded until stable conductivities were attained. The values were compared to KCl reference solutions treated in an identical manner, and the results showed that th...
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The speciation of uranyl ions in fulvic acid (FA) and humic acid (HA), based on models of larger sizes, is systematically studied using density functional theory (DFT). Four uranyl binding sites are suggested for FA and based on their energetics, the preferential binding sites are proposed. The computed binding sites include two chelating types, one through the carboxylate group and one via the...
متن کاملComplementary multianalytical approach to study the distinctive structural features of the main humic fractions in solution: gray humic acid, brown humic acid, and fulvic acid.
Previous studies have indicated that the main fractions of humic substances (HS), gray humic acid (GHA), brown humic acid (BHA), and fulvic acid (FA), present different molecular patterns in water solution that are probably associated with specific structural features. However, the techniques used in these previous studies did not permit clarification of the principal qualitative characteristic...
متن کاملEffect of Soil Application of Humic Acid and Fluvic Acid on Agronomic traits of Barley
One of the most important issues affecting environmental health and sustainable food production is application of organic fertilizers instead of chemical fertilizers. This study set out to investigate the effect of application of soil humic acid and fulvic acid on barley plant. To this end a factorial experiment was carried out on the basis of randomized complete block design with four replicat...
متن کاملStructural Characterization of a Fulvic Acid and a Humic Acid Using Solid-State Ramp-CP-MAS
This study uses the analysis of 13C nuclear magnetic resonance (NMR) spectra and NMR relaxation parameters to study the structure and functional group distribution of a fulvic acid and a humic acid. The spectra and relaxation parameters are obtained with a new cross polarization magic angle spinning (CP-MAS) 13C NMR technique that gives qualitatively and quantitatively accurate results at highe...
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ژورنال
عنوان ژورنال: Canadian Journal of Plant Science
سال: 2016
ISSN: 0008-4220,1918-1833
DOI: 10.1139/cjps-2016-0143