Results 51 to 60 of about 3,182 (182)

Crescimento inicial de Campomanesia xanthocarpa O. Berg sob diferentes composições de substratos

open access: yesRevista Brasileira de Plantas Medicinais, 2015
RESUMO:O objetivo do trabalho foi avaliar a influência de diferentes composições de substratos no crescimento inicial de Campomanesia xanthocarpa, bem como avaliar índices fisiológicos.
T.O. CARNEVALI   +5 more
doaj   +1 more source

Stemflow Dynamics in the Jamari National Forest (Brazilian Amazon): I. The Role of Tree Structure

open access: yesBiotropica, Volume 58, Issue 3, May 2026.
A portion of rainfall that contacts tree canopies is drained down tree stems as stemflow. Stemflow is an underexamined component of rainfall partitioning in tropical forests. To investigate how tree canopy structural attributes influence stemflow in the Brazilian Amazon, we measured stemflow, rainfall, and dendrometric parameters of 56 trees in the ...
Jeferson Alberto de Lima   +5 more
wiley   +1 more source

Determinação de manganês disponível em solos de referência da mesorregião oeste do Paraná

open access: yesRealizAção, 2018
O estudo do solo de áreas naturais é fundamental para inferir o nível de contaminação de solos expostos à degradação e interação entre suas variáveis, bem como auxiliar em programas de monitoramento ambiental.
Cleidimar João Cassol
doaj   +1 more source

Slow Recovery and Loss of Species Richness in a Semi‐Deciduous Seasonal Atlantic Forest After Selective Logging and Drought Events

open access: yesJournal of Vegetation Science, Volume 37, Issue 3, May/June 2026.
Long‐term monitoring revealed slow recovery and declining species richness in a semi‐deciduous Atlantic Forest following selective logging and recurrent droughts. Despite structural increases, compositional shifts toward dominance by a few species indicate functional simplification.
Nilson Berriel   +5 more
wiley   +1 more source

Recipientes e substratos na germinação e desenvolvimento de crisântemo e amor-perfeito

open access: yesOrnamental Horticulture, 2015
O objetivo deste trabalho foi avaliar o efeito do substrato e tamanho de recipiente na germinação e desenvolvimento de crisântemo e amor-perfeito. Os trabalhos foram realizados no Viveiro de Produção de Mudas Hortícolas da UTFPR – Campus Dois Vizinhos-PR.
kelli pirola   +5 more
doaj   +1 more source

Reducing Nitrogen Fertilizer Dependency in Tropical Pastures Through Azospirillum Brasilense and Pseudomonas Fluorescens Coinoculation

open access: yesNew Zealand Journal of Agricultural Research, Volume 69, Issue 2, April 2026.
Coinoculation with Azospirillum brasilense and Pseudomonas fluorescens was associated with maintained forage productivity under reduced nitrogen (N) fertilizer rates in tropical pastures. This hypothesis was evaluated in a 2‐year field experiment conducted over two consecutive growing seasons (2022 and 2023) the State University of Goiás, São Luís de ...
Lucas Henrique Ferreira Santos   +11 more
wiley   +1 more source

LIXIVIAÇÃO DE POTÁSSIO EM UM LATOSSOLO CULTIVADO COM CAFÉ

open access: yesIRRIGA, 2022
LIXIVIAÇÃO DE POTÁSSIO EM UM LATOSSOLO CULTIVADO COM CAFÉ     MATEUS DE PAULA GOMES1; CARLOS HENRIQUES SILVA REZENDE2; JOSÉ ADINAN SOUZA3 E GENELÍCIO CRUSOÉ ROCHA4   1 Centro de Ciências Biológicas e da Natureza - Universidade Federal do Acre - Distrito Industrial, s/n, Campus Universitário, 69920-900, Rio Branco, AC, Brasil.
Mateus de Paula Gomes   +3 more
openaire   +1 more source

The synergy between zinc and vitamins promotes corn growth and yield

open access: yesAgrosystems, Geosciences &Environment, Volume 9, Issue 1, March 2026.
Abstract Using zinc and vitamins can help improve the physiological conditions of corn (Zea mays L.), providing better vegetative and reproductive development. Because of their potential for use in agriculture, an attempt is being made to establish the most efficient utilization. This study evaluated the effects of zinc, nicotinamide, and pyridoxine on
Gabriela Moura Serafim   +9 more
wiley   +1 more source

Distribuição espacial das raízes de cafeeiro e dos poros de dois Latossolos sob manejo conservacionista

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2014
O objetivo deste trabalho foi avaliar o efeito do sistema de manejo que emprega práticas de conservação do solo na distribuição do sistema radicular de cafeeiros e na estrutura de dois Latossolos após seis anos de implantação da lavoura na região do Alto
Carla E. Carducci   +5 more
doaj   +1 more source

Degradation and Restoration of Anthrosols in the Amazonia Under Contrasting Agricultural Practices: Evidence From the Assessment of Soil Physical Quality and Carbon and Nitrogen Stocks

open access: yesJournal of Sustainable Agriculture and Environment, Volume 5, Issue 1, March 2026.
ABSTRACT This study was conducted to assess the impact of different agricultural practices on the physical quality and the carbon and nitrogen stocks of anthropogenic soils used by smallholder farmers in Central Amazonia, Brazil. Undisturbed and disturbed soil samples were collected at three depths (0–0.10 m, 0.10–0.20 m, and 0.20–0.30 m), with five ...
Heitor Marcel da Silva Ribeiro   +9 more
wiley   +1 more source

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