Biochar (carbonized biomass for agricultural use) has been used worldwide as soil
amendment and is a technology of particular interest for Brazil, since its" inspiration" is from …

Spectroscopic techniques including X-ray photoelectron spectroscopy (XPS) can identify
particular chemical groups of humic acids (HA) from “Terra Preta de Índios”(TPI) or …

The effects of chlorination on 16 humic and fulvic acids (HAs and FAs, respectively)
extracted from six different soil samples from Korea and two purchased soil samples …

Background Hydrothermal carbonization (HTC) is a thermochemical process to convert
biomass in carbon-rich materials (hydrochar). The use of sugarcane industry by-products in …

Biochar application can improve soil quality, but at high rates may cause negative effects on
soil organisms such as earthworms. Conversely, as ecosystem engineers and catalysts of …

The objective of this work was to evaluate the development and quality of clonal seedlings of
teak (Tectona grandis) grown in substrate with two types of biochar. The assay was carried …

Maize (Zea mays) stover, with its natural 13 C abundance, was incubated for two years in a
gravelly brown earth sandy loam soil that had been under long term cultivation to wheat …

Humic and fulvic acids, which can be extracted from soils, are abundant in surface water
because of their high discharges from runoff during torrential rainfall, storm events, and …

The effects of biochar and nitrogen application on yields of upland rice and cowpea and on
soil fertility were determined in a greenhouse in Macaíba, RN, Brazil. The trial consisted of …

Purpose Charcoal production during the nineteenth century transformed landscapes in the
Brazilian Atlantic Forests in Rio de Janeiro city. These paleo-territories were studied to …