Search Results - "Silva, Douglas Marcelo Pinheiro da"
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USE OF SCALED SEMIVARIOGRAMS IN THE PLANNING SAMPLE OF SOIL CHEMICAL PROPERTIES IN SOUTHERN AMAZONAS, BRAZIL
Published in Revista Brasileira de Ciência do Solo (01-02-2015)“…The lack of information concerning the variability of soil properties has been a major concern of researchers in the Amazon region. Thus, the aim of this study…”
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Spatial Variability of Soil Properties in Archeological Dark Earth Sites under Cacao Cultivation
Published in Revista Brasileira de Ciência do Solo (2016)“…ABSTRACT Soils with an A horizon formed by human activity, an anthropogenic A horizon, are found in the Amazon Region. Few studies have examined the spatial…”
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Nitrogen and phosphorus fertilization in upland rice in the municipality of Humaitá at Amazonas State
Published in Revista Ceres (01-08-2023)“…The phosphorus (P) contents in the soil solution are generally very low in Brazilian soils and this characteristic, associated with the high capacity of soils…”
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Production of lettuce cultivars in greenhouse in Humaitá, southern Amazonas state
Published in Revista de ciências agroveterinárias (19-10-2022)“…Lettuce is the main leafy vegetable commercialized in Brazil and it is cultivated in many different environment conditions and regions. But, under high…”
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The Stability of Aggregates in Different Amazonian Agroecosystems Is Influenced by the Texture, Acidity, and Availability of Ca and Mg in the Soil
Published in Agronomy (Basel) (01-04-2024)“…The processes of occupation and exploitation in the Amazon have been increasing, and as a consequence, forest areas are being replaced by agroecosystems. As a…”
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Cotton aphid feeding preference and the development of watermelon plants treated with silicon
Published in Revista de ciências agroveterinárias (01-07-2021)“…The cotton aphid is one of the main watermelon crop pests and may cause a reduction in productivity due to the suction of sap, the transmission of viruses, and…”
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First approximation of soil quality critical limits in land use systems in the Brazilian Amazon
Published in Catena (Giessen) (01-12-2024)“…[Display omitted] •Land use systems influence soil quality in the Brazilian Amazon.•Agroforestry Systems show higher soil quality indices than Pasture…”
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Physical attributes and organic carbon in soils under natural and anthropogenic environments in the South Amazon region
Published in Environmental earth sciences (01-06-2020)“…The transformation of natural Amazonian environments into production systems, mainly related to agriculture and livestock, is considered the most frequent…”
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Caracterização de terras pretas arqueológicas no sul do estado do Amazonas
Published in Revista Brasileira de Ciência do Solo (01-08-2013)“…As Terras Pretas Arqueológicas (TPAs) são unidades de solo que apresentam como características alta fertilidade, coloração escura e presença de fragmentos…”
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Atributos físicos e estoque de carbono do solo em áreas de Terra Preta Arqueológica da Amazônia
Published in Revista ambiente & água (01-04-2017)“…Para se avaliar a qualidade do solo e a sustentabilidade em ambientes de Terra Preta Arqueológica da Amazônia, é importante a caracterização dos impactos de…”
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Spatial variability of soil respiration in Archaeological Dark Earth areas in the Amazon
Published in Catena (Giessen) (01-03-2018)“…In natural ecosystems, soil respiration is one of the important components of carbon emission into the atmosphere – CO2 efflux. Soil CO2 efflux has both…”
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Distribuição espacial do efluxo de CO2 em área de terra preta arqueológica sob cultivo de cacau e café no município de Apuí, AM, Brasil
Published in Revista ambiente & água (01-12-2016)“…As Terras Pretas Arqueológicas (TPA) são solos que podem concentrar até seis vezes mais carbono orgânico que solos adjacentes sem horizonte A antrópico,…”
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Spatial variation of chemical attributes in archaeological dark earth under cocoa cultivation in Western Amazon
Published in Bioscience journal (01-01-2019)“…Archeological Dark Earths (ADEs) are fertility soils that are notoriously superior to the vast majority of soils typical of the Amazon region. The study on…”
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Qualidade da Água para Consumo Humano em Comunidades Rurais no Sudoeste da Amazônia
Published in Fronteiras : Journal of Social, Technological and Environmental Science (Anápolis) (27-10-2023)“…Objetivou-se avaliar a qualidade da água de poços domésticos, por meio de parâmetros físico-químicos e microbiológicos, em quatro comunidades rurais do…”
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SPATIAL DEPENDENCE OF THE AGGREGATE STABILITY AND ORGANIC MATTER IN A CAMBISOL UNDER SUGAR CANE CULTIVATION
Published in Caatinga (01-10-2013)“…The soil management system can modify the natural distribution of the soil attributes and, consequently, the variability of the soil aggregation and organic…”
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Caracterização física e química de terras pretas arqueológicas e de solos não antropogênicos na região de Manicoré, Amazonas
Published in Agro@mbiente on-line (31-08-2012)“…Os solos predominantes na região Amazônica pertencem à classe dos Latossolos e Argissolos, caracterizado por seu alto grau de intemperismo e baixa fertilidade…”
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Biological aspects and feeding behavior of cotton aphid in watermelon cultivars submitted to silicon application
Published in Arquivos do Instituto Biológico (São Paulo) (2020)“…ABSTRACT This research aimed to evaluate the biological aspects and the feeding behavior of Aphis gossypii in watermelon cultivars submitted to silicon…”
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Avaliação ambiental do manejo de resíduos sólidos em comunidades rurais na Amazônia Ocidental, Brasil
Published in Sustinere (12-07-2024)“…As comunidades rurais na região Amazônica brasileira apresentam deficiências nos serviços de saneamento básico, incluindo abastecimento de água, rede de esgoto…”
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Gravimetric analysis of solid waste generated in rural communities in the Western Amazon, Brazil/Analise gravimetrica dos residuos solidos gerados em comunidades rurais na Amazonia Ocidental, Brasil/Analisis gravimetrico de residuos solidos generados en comunidades rurales de la Amazonia Occidental, Brasil
Published in Sustinere (01-01-2024)“…Rural communities in the Brazilian Amazon region have deficiencies in basic sanitation services, including water supply, sewerage and solid waste management,…”
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Geoestatística Aplicada a Atributos Físicos e Químicos em Área com Mandioca na Região de Humaitá, Amazonas
Published in Fronteiras : Journal of Social, Technological and Environmental Science (Anápolis) (15-07-2024)“…A mandioca é uma cultura de grande importância regional devido à sua adaptabilidade e excelente fonte de proteína, por outro lado, o sistema de manejo é…”
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