humic acids
Gladiolus development in response to bulb treatment with different concentrations of humic acids
... The results showed that, in general, the Gladiolus plants derived from corms treated with humic acids showed increases, in absolute terms, in shoot growth and corm production compared with the control ...
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Initial performance of corn in response to treatment of seeds with humic acids isolated from bokashi
... of humic acids (Baldotto & Baldotto, 2014) and use of its bioactivity, that is, its action as a plant growth ...of humic acids helps to increase the income of the bokashi ...of ...
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Initial performance of maize in response to humic acids and plant growth-promoting bacteria
... organic acids (Ahemed & Kibret, 2014), which potentiates nutrient absorption and water available in the soil, guaranteeing a greater accumulation of ...of humic acids and Rhizobium ...
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Determination of the critical micelle concentration of humic acids by spectroscopy and conductimetric measurements.
... DETERMINATION OF THE CRITICAL MICELLE CONCENTRATION OF HUMIC ACIDS BY SPECTROSCOPY AND CONDUCTIMETRIC MEASUREMENTS. The aim of this study was the determination of the critical micelle concentration (CMC) of ...
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Development of a filtration and titration method for the determination of the acidity of humic acids.
... OF HUMIC ACIDS. The acidity determinations method of humic acids (HA) content was developed by Schnitzer and Gupta and is a very well known ...
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Yield and quality of tomato produced on substrates and with application of humic acids
... (coconut fiber (CF)), S2 (FC + carbonized coffee husk (CC) in the ratio 1:3), S3 (CF + CC in the ratio 2:3) and S4 (CC), were evaluated following the randomized blocks design in factorial 4x4 scheme with four ...
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Carbon paste electrodes modified with humic acids: study and determination of metals in aqueous solution.
... WITH HUMIC ACIDS: STUDY AND DETERMINATION OF METALS IN AQUEOUS ...with humic acids have been used for studying the behavior of metals in aqueous ...the humic acid ratio, the nature of ...
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Modifications of phosphorus in Latosol as a function of humic acids and acidity
... Phosphorus (P) is one of the most important nutrients to plants but it limits agricultural yield in tropical soils. Amorphous iron (Fe) oxides in these soils form low-solubility complexes with phosphate, reducing the ...
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Root Growth of Arabidopsis thaliana (L.) Heynh. treated with humic acids isolated from typical soils of Rio de Janeiro State, Brazil
... a humic aggregate stable and bioactive are similar and require contact with clay silicates 2:1 of high ion-exchange capacity and eutrophic, and ii) recent studies on humic substances (Piccolo, 2001) ...
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Fractal dimension of humic acids in differents experimental condition.
... OF HUMIC ACIDS IN DIFFERENTS EXPERIMENTAL ...of humic particles was achieved by the turbidimetric technique where diluted suspensions of humic acids, in different experimental ...
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Growth and production of ornamental sunflower grown in the field in response to application of humic acids
... of humic acids (Table 2), consequently there is a decreasing trend in the crop cycle of ornamental sunflower, which, according to the company SAKATA (2014) the cycle of the studied cultivar Pollenless ...
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Supramolecular Characterization of Humic Acids Obtained through the Bacterial Transformation of a Low Rank Coal
... The total of volatile ions recorded in the chromatograms generated with the GC-MS of the LRC, the HA-NaOH and the HA-CSB (taking HA-CSB B. mycoides as an example) are shown in the pyrograms in Figure 3. The pyrogram of ...
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Condensed aromatic rings and E4/E6 ratio: humic acids in gleysoils studied by NMR CP/MAS13C, and dipolar dephasing.
... Correlação entre proporção de aromaticidade determinada por CP/MAS 13 C mais desacoplamento defasado (DD) e radicais livres das amostras de AH(s). substituídos são detectados, a correla[r] ...
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Características estruturais de ácidos húmicos isolados de solos com adição de resíduos orgânicos de origem urbana: composição elementar, análise de RMN 13C e Pi-CG/EM.
... of humic substances (Kononova, ...processes, humic substances gradually lose O functional groups and increase in aromaticity by condensation ...of humic substances in natural ...
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MATÉRIA ORGÂNICA DO SOLO EM FUNÇÃO DE ADUBAÇÃO NITROGENADA EM SUCESSÕES DE CULTURAS
... the humic acids, fulvic acids, and hu- min ...the humic acids fraction than in monoculture ...the humic acids fraction with variable N ...
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THE USE OF TOTAL LUMINESCENCE SPECTROSCOPY IN THE INVESTIGATION OF THE EFFECTS OF DIFFERENT RICE MANAGEMENT PRACTICES ON HUMIC SUBSTANCES OF A PLANOSOL
... the humic acids (HA) and fulvic acids (FA) examined here are shown in figures 1 and 2, respectively, while the excitation/emission wavelength pairs (EEWP) of the main peak maxima and the ...
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Initial performance of pineapple and utilization of rock phosphate applied in combination with organic compounds to leaf axils
... Humic acids have been designated as supramolecular aggregates (Piccolo, 2001), forming clusters of heterogeneous organic compounds of low molecular weight, containing predominantly hydrophilic (fulvic ...
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REDOX INDEX OF SOIL CARBON STABILITY
... reactive humic acids with higher RICS (Table 2), increased soil CEC and soil C content and decreased PZSE, compared to the sugarcane management with ...
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Humic substances isolated from residues of sugar cane industry as root growth promoter
... are humic substances isolated from different ...substances. Humic acids (HA) from filter cake were characterized, and their effects as root growth promoters were ...
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