Iron deficiency, which severely decreases the plant yield and quality, is one of major problems calcareous soils. Foliar applications humic substances and/or Fe fertilizers are environmentally friendly methods to cope with deficiency. The aim this study was investigate combined effect Fe/nano humic/fulvic acid-based biostimulant foliar on content growth parameters spinach. Treatment solutions w...

Humic substances are defined as the result of decomposition any organic matter, and they consist mainly humin, humic, fulvic acids. Compared to humic acids acid (FA) most explored compounds. However, FAs less studied than because usually small residual quantities. Considering that its potential for bioactivity is stronger acids, current review was performed evaluate effectiveness FA application...

Peatlands are wetlands that contain higher amounts of carbon, some which is often released with water in dissolved form, especially when land use change occurs. However, peatland carbon mostly stabilized humic fractions where it forms complexes metallic elements. This study sought to measure the levels organic (DOC) rivers and analyze link between physicochemical parameters along Buhandanda Lus...

Wheat is the cereal most susceptible to lodging, particularly during flowering period and at early ripening stage. The use of plant growth retardants (PGRs) especially recommended when intensive nitrogen (N) fertilisation applied, which increases susceptibility plants lodging. This paper presents results tests into effects PGRs (PGR0—control; PGR1—chlormequat chloride (CCC) + trinexapac-ethyl (...

Accurately measuring the bioavailability of organic contaminants associated with complex environmental matrices is necessary for assessing contaminant risk, as well as for evaluating the effectiveness of proposed and in-place remediation strategies. Due to its importance, the bioavailability of organic contaminants associated with soils and sediments has been widely examined at the macroscopic ...

The hydrolysis of bacitracin has been under study in this laboratory at different times and with different preparations during the past few years. A report of the experiments has been withheld pending more conclusive evidence that the material to be used for the hydrolysis was a single substance in the chemical sense. The results reported in two accompanying papers dealing with fractionation of...

To verify the priming effects of Maillard reaction precursors on microbial decomposition rice straw at different incubation temperatures, method indoor a constant temperature was adopted. In process, addition glucose, catechol or glycine solution alone in mixed conducted temperatures 10 °C, 15 °C and 28 respectively. The C content humic-extracted acid (CHLE), humification index (the ratio humic...

The use of biomass-derived compounds as substitutes of pet roleum has received much a t tent ion1)~4). Because of the complex nature of biomass, the conversions of biomass to chemicals usually start with the production of small molecules called platform chemicals by thermal, chemical or biological processing5). Among these platform chemicals, furfural6) and 5hydroxymethylfurfural (HMF)7) are es...

In pursuing quantitative histochemical investigations aimed at demonstrating the biochemical architecture of human frontal cortex (l-4), we found it necessary to determine ganglioside sialic acid in submicrogram amounts. Even when adapted to the microscale, spectrophotometric methods lack the sensitivity required for studying nervous tissue samples containing less than 0.3 pg of sialic acid. Si...

In pursuing quantitative histochemical investigations aimed at demonstrating the biochemical architecture of human frontal cortex (l-4), we found it necessary to determine ganglioside sialic acid in submicrogram amounts. Even when adapted to the microscale, spectrophotometric methods lack the sensitivity required for studying nervous tissue samples containing less than 0.3 pg of sialic acid. Si...