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Sensing atrazine herbicide degradation products through their interactions with humic substances by surface-enhanced raman scattering
(2021-06-01)
In this work, we have developed a simple method to carry out the quantitative analysis of deethylhydroxyatrazine (DEHA), the most abundant metabolite of atrazine herbicide (ATZ), based on the surface-enhanced Raman scattering ...
Peat humic substances enriched with nutrients for agricultural applications: competion between nutrients and non-essential metals present in tropical soils
(Elsevier B.V., 2010-05-15)
Improved agricultural productivity, and reduction of environmental impacts, require studies of the interactions between different soil components. Fertilizers marketed as “organic” or “natural”, such as peats or humic ...
Spectroscopic characterization of humic substances isolated from sediment of an area of sugarcane cultivation
(2013-08-01)
Humic substances (HS) have an important environmental property, interacting with metal species and influencing their transport, accumulation, and bioavailability. In this study, the HS of sediment from an area of intensive ...
Peat humic substances enriched with nutrients for agricultural applications: Competition between nutrients and non-essential metals present in tropical soils
(2010-05-01)
Improved agricultural productivity, and reduction of environmental impacts, require studies of the interactions between different soil components. Fertilizers marketed as organic or natural , such as peats or humic ...
Spectroscopic and elementary characterization of humic substances in organic substrates
(2018-01-01)
The humic substances, major constituents of the organic matter of the substrates, play an important role in plant development, including: the availability of nutrients, the generation of negative charges (CEC) and the ...
Influence of soil use on organic carbon and humic substances of an oxisol in tropical systems
(2012-08-01)
The conversion of native forests in crop systems affects the equilibrium of the soil organic carbon (SOC). The objective of this study was to evaluate the contents of SOC and humic substances (humin, humic acid, and fulvic ...
Occurrence of Cu and Cr in the sedimentary humic substances and pore water from a typical sugar cane cultivation area in São Paulo, Brazil
(2013-08-16)
Purpose: The purpose of this paper is to study the interactions of sedimentary humic substances (SHS) from a sugarcane cultivation area with Cu(II) and Cr(III) and to evaluate the occurrence of these metals in the pore ...