Results 61 to 70 of about 23,088 (219)

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

Absorção de nutrientes e alterações químicas em Latossolos cultivados com plantas de cobertura em rotação com soja e milho

open access: yes, 2014
Os efeitos promovidos pelas plantas de cobertura nos atributos quimicos do solo sao bastante variaveis, dependendo de fatores como especie utilizada, manejo dado a biomassa, epoca de plantio e corte das plantas, tempo de permanencia dos residuos no solo,
Wander Luis Barbosa Borges   +4 more
semanticscholar   +1 more source

Soil organic matter and fertility of anthropogenic dark earths (Terra Preta de Índio) in the Brazilian Amazon basin. [PDF]

open access: yes, 2011
Propriedades de fertilidade, carbono total (Ctot) e frações químicas da matéria orgânica (fração ácidos fúlvicos - FA, fração ácidos húmicos - HA e fração humina - HUM) foram comparados entre solos antrópicos (Terra Preta de Índio) e Latossolos sem ...
BENITES, V. de M.   +5 more
core  

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

Carbono da biomassa microbiana em Latossolos determinado por oxidação úmida e combustão a temperatura elevada

open access: yes, 2015
O objetivo deste trabalho foi avaliar as relacoes entre os metodos de oxidacao umida e combustao a alta temperatura, utilizados em determinacoes do carbono da biomassa microbiana, e verificar a necessidade do uso de fatores de correcao entre os dois ...
Leandro Moraes de Souza   +3 more
semanticscholar   +1 more source

Stemflow Dynamics in the Jamari National Forest (Brazilian Amazon): II. Solute Concentrations and Flux Dynamics

open access: yesBiotropica, Volume 58, Issue 2, March 2026.
Trees can redirect large volumes of rainwater to the base of their stems. This stemflow not only redistributes water but also channels canopy‐derived solutes to the forest floor. Building on research showing canopy geometry and bark properties govern stemflow volumes, we examined how those same traits modulate the biogeochemical side of this flux. Over
Jeferson Alberto de Lima   +5 more
wiley   +1 more source

Solos do campo experimental da Embrapa Milho e Sorgo: suas características e classificação no novo Sistema Brasileiro. [PDF]

open access: yes, 2017
bitstream/CNPS/11831/1/bpd05_2002_milho_sorgo ...
BRANDÃO, M.   +2 more
core  

MINERALIZAÇÃO DE NITROGÊNIO EM LATOSSOLOS ADUBADOS COM RESÍDUOS ORGÂNICOS

open access: yes, 2013
A taxa de mineralizacao do nitrogenio (N) varia de um residuo orgânico para outro, evidenciando-se dependente da sua composicao quimica e interacao do material orgânico com o solo.
Waldete Japiassu de Oliveira Carneiro   +3 more
semanticscholar   +1 more source

Phosphogypsum Doses and Subsoil Contamination: A Study on the Mobility of Rare Earth Elements, Uranium, and Thorium

open access: yesEuropean Journal of Soil Science, Volume 77, Issue 2, March–April 2026.
Experiment setup view. ABSTRACT Soil conditioners are commonly used by producers aiming to enhance agricultural productivity, and among these products, phosphogypsum has gained increasing attention. As an agricultural amendment, phosphogypsum contains rare earth elements (REE), uranium (U), and thorium (Th), raising environmental concerns regarding its
Luís Paulo P. Tanure   +7 more
wiley   +1 more source

Elementos-traço em dois latossolos após aplicações anuais de lodo de esgoto por treze anos

open access: yes, 2014
O objetivo deste experimento foi avaliar os teores e o efeito cumulativo dos elementos-traco (ETs) arsenio, bario, cadmio, cromo, cobre, mercurio, molibdenio, niquel, chumbo, selenio e zinco, da resolucao 375 do CONAMA, apos 13 anos consecutivos de ...
M. Andrade   +4 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy