A5065578675- Soil Management and Crop Yield
- Growth and nutrition in plants
- Amazonian Archaeology and Ethnohistory
- Soil Carbon and Nitrogen Dynamics
- Clay minerals and soil interactions
- Indigenous Health and Education
- Environmental and biological studies
- Iron oxide chemistry and applications
- Geochemistry and Elemental Analysis
- Agricultural and Food Sciences
- Banana Cultivation and Research
- Catalysis for Biomass Conversion
- Thermochemical Biomass Conversion Processes
- Cassava research and cyanide
- Biodiesel Production and Applications
- Heavy Metals in Plants
- Plant Micronutrient Interactions and Effects
- Heavy metals in environment
- Phosphorus and nutrient management
- Coal and Its By-products
- Isotope Analysis in Ecology
- Pesticide and Herbicide Environmental Studies
- Conservation, Biodiversity, and Resource Management
- Geography and Environmental Studies
- Forest Biomass Utilization and Management
National Institute of Amazonian Research
2015-2025
Fundação de Amparo à Pesquisa do Estado do Amazonas
2017
Instituto Nacional de Metrologia, Qualidade e Tecnologia
2014
Planta
2008
Abstract The term biochar refers to materials with diverse chemical, physical and physicochemical characteristics that have potential as a soil amendment. purpose of this study was investigate the P sorption/desorption properties various slow biochars one fast pyrolysis determine how influences these in degraded tropical soil. mixture three separate biochars: sawdust, elephant grass sugar cane leaves. Three other were made by from Amazonian tree species (Lacre, Ingá Embaúba) at temperatures...
Carbon particles containing mineral matter promote soil fertility, helping it to overcome the rather unfavorable climate conditions of humid tropics. Intriguing examples are Amazonian Dark Earths, anthropogenic soils also known as "Terra Preta de Índio'' (TPI), in which chemical recalcitrance and stable carbon with millenary mean residence times have been observed. Recently, presence calcium oxygen within TPI-carbon nanoparticles at nano- mesoscale ranges has demonstrated. In this work, we...
This manuscript presents the Raman characterization of stable carbon materials found in a special type soil, named Terra Preta de Índio (Indian Dark Earths). The Terras Pretas Índios have been studied as potential model for sustainable agriculture humid tropics. stability organic matter and long‐term high‐level ion exchange capacity these soils are due to unusually high amount black carbon. Here, we show how spectroscopy can be used characterize content (TPI‐carbons). tangential stretching...
Biochar is a multifunctional tool that enhances soil quality, with particularly positive effects on acidic soils low nutrient content, common in tropical regions worldwide, such as the Amazon region Brazil. This study investigates of açaí fruit waste biochar (Euterpe oleracea Mart.) amendment and phosphate fertilisation chemical characteristics Ferralsol biological components cowpea (Vigna unguiculata (L.) Walp). In greenhouse setting, randomised block design was employed, testing five doses...
Soils of the lowland tropics in central Brazilian Amazon are generally highly leached, acidic and nutrient‐poor. Charcoal, combined with other soil amendments, might improve fertility but this, turn, could lead to increased weed problems for agricultural production. This experiment was conducted assess pressure species composition on plots receiving various inorganic organic including charcoal. Additions fertilizer, compost chicken manure resulted increases ground cover 40, 22 53%,...
Amazonian Dark Earths (ADE), one of the best-known examples anthropogenic (man-made) soils, are result Amerindian settlements in pre-Columbian period. ADE highly variable terms their size, shape, depth and physical chemical make-up. Scholars tend to divide into two categories: terra preta mulata. The former dark fertile soils replete with ceramic shards, indicating areas habitation, while latter lighter colour, less fertile, lacking pottery thought be old agricultural fields. While a...
Sulfometuron-methyl is a broad-spectrum herbicide, used throughout Brazil; however, its environmental impacts in biochar (BC) amended soils not fully understood. Biochar known to enhance soil quality but can also have undesired effects such as altering the bioavailability and behavior of herbicides. Microbial communities degrade herbicides sulfometuron-methyl soils; they are be affected by BC. Therefore, it important understand tripartite interaction between these factors. This research...
Com o objetivo de determinar as características adsorção fósforo utilizando-se a isoterma Langmuir, e suas relações com algumas propriedades físicas químicas solos, foi desenvolvido um estudo no Laboratório Solos do Instituto Nacional Pesquisas da Amazônia (INPA), amostras camada superficial (0 - 20 cm) oito solos Estado Amazonas. Grande variação na capacidade máxima (CMAP), energia fator P máximo (FCPmáx) observado. O Plintossolo Argilúvico alumínico (FTa) solo que apresentou os maiores...
Carbon–oxygen functional groups dominate over different spatial regions in nanoscale carbon grains from ancient Amazonian anthrosols (<italic>Terra Preta de Índio</italic>).
The use of heavy machinery in logging operations leads to soil compaction, especially highly used skid trails. In Amazonia, recovery topsoil physical properties has been reported So, the present study sought determine if this was a full by investigating additional attributes, such as chemical and fine root biomass (FRB). addition, forest floor litter investigated more complete view dynamics. To accomplish this, above sampling locations collected, well samples below two depths. These depths...
Amazonian soils have some physical, chemical and mineralogical differences, understanding the differences is important to understand behavior of nutrients in soil, especially phosphorus. The study was carried out two types soils: a Hydromorphic soil profile Non-hydromorphic Central Amazon region Brazil, located metropolitan area Manaus. Five depths were sampled: 0.00-0.05; 0.05-0.1; 0.1-0.2; 0.2-0.4; 0.4-0.6 m. Physical, chemical, morphological attributes both studied. With exception clay,...
Soil amended with biochar is considered a significant response to climate change, remediation of degraded soils, and agronomic improvements. An artisanal mobile pyrolysis kiln was developed for small-sized biomass inputs. Approximately 190 kg produced in 21 carbonisation processes using acai residues (Euterpe oleracea Mart.) as raw material, they are among the most abundant agro-industrial Amazon. It valuable underutilised resource, often inadequately discarded, causing environmental impact...