The Amazonian Latosols are acidic soils shows low activity in clay minerals. However, it is also found anthropogenic soils known as Amazonian Dark Earth (EAD) that provides a potential to develop a sustainable system in agriculture. The majority of TPI soils show fragments of black carbon stemming from an anthropic activity. The presence of these fragments endows the improvements in the physic and chemical char...
The biochar (BC) acts as a physical, chemical and biological conditioner, which added to increasing doses of saw dust powder (PS) can contribute to soil improvement. The objective of this work was to verify the residual effect of BC and PS on total carbon, organic carbon, total nitrogen and carbon and nitrogen in a dystrophic yellow latosol in the central Amazon. The experiment was carried out at the experiment...
The Amazonian Dark Earth (ADE), that is extremely efficient soils in retaining great amount of organic matter of the soil, and for long time, they are still little known with relationship to the effects on the physical fractions of those soils in these adapt tropical region. Therefore, the objective of the present study was to evaluate the space distributions and in depth of the light organic fractions and the ...