Results 21 to 30 of about 26,126 (298)

Nitrogen Utilization from Ammonium Nitrate and Urea Fertilizer by Irrigated Sugarcane in Brazilian Cerrado Oxisol

, 2020
Sugarcane is the most promising among renewable biofuel-producing crops. An adequate availability of water and nutrients, especially nitrogen (N), is of utmost importance.
Nelmício Furtado da Silva, Edson Cabral da Silva, T. Muraoka, Marconi Batista Teixeira, Frederico Antonio Loureiro Soares, Fernando Nobre Cunha, J. Adu-Gyamfi, W. S. D. S. Cavalcante   +7 more
semanticscholar   +1 more source

Comportamiento de la infiltración en un oxisol

Revista U.D.C.A Actualidad & Divulgación Científica, 2010
El estudio de las técnicas de infiltración de agua en el suelo permite entender los procesos hidrológicos, la degradación de suelos y el transporte de solutos, siendo un soporte significativo, para minimizar los métodos de escorrentía superficial. El objetivo del presente trabajo fue evaluar el comportamiento de la infiltración, a través de los modelos
Orjuela-Matta, Helber M., Rubiano Sanabria, Yolanda, Camacho-Tamayo, Jesús Hernán   +2 more
openaire   +5 more sources

Fontes de potássio em solos distroférricos cauliníticos originados de basalto no Rio Grande do Sul Potassium-bearing minerals in two oxisols of Rio Grande do Sul State, Brazil

Revista Brasileira de Ciência do Solo, 2004
Este estudo teve como objetivo identificar os minerais fonte de K em dois solos originários de basalto: um Latossolo Vermelho distroférrico típico e um Nitossolo Vermelho distroférrico típico. A análise mineralógica por difratometria de raios-X mostrou a
G. W. Melo, E. J. Meurer, L. F. S. Pinto
doaj   +1 more source

Convergent adaptations: bitter manioc cultivation systems in fertile anthropogenic dark earths and floodplain soils in central Amazonia [PDF]

, 2012
Shifting cultivation in the humid tropics is incredibly diverse, yet research tends to focus on one type: long-fallow shifting cultivation. While it is a typical adaptation to the highly-weathered nutrient-poor soils of the Amazonian terra firme, fertile
Alessandro Alves-Pereira, André Braga Junqueira, Charles Roland Clement, James Angus Fraser, Lee A. Newsom, Nivaldo Peroni   +5 more
core   +5 more sources

DNA-Stable Isotope Probing Shotgun Metagenomics Reveals the Resilience of Active Microbial Communities to Biochar Amendment in Oxisol Soil

Frontiers in Microbiology, 2020
The functions and interactions of individual microbial populations and their genes in agricultural soils amended with biochar remain elusive but are crucial for a deeper understanding of nutrient cycling and carbon (C) sequestration.
Julian Yu, Michael J. Pavia, Lauren M. Deem, S. Crow, J. Deenik, C. Penton   +5 more
semanticscholar   +1 more source

Enrichment of organic carbon in sediment transport by interrill and rill erosion processes [PDF]

, 2008
Erosion and loss of organic carbon (OC) result in degradation of the soil surface. Rill and interrill erosion processes on a silt loam soil were examined in laboratory rainfall and flume experiments.
Cornelis, Wim, Gabriëls, Donald, Hofman, Georges, Schiettecatte, Wouter   +3 more
core   +1 more source

Indigenous arbuscular mycorrhiza is more important for early growth period of groundnut (Arachis hypogea L.) for P influx in an Oxisol

Acta Agriculturae Slovenica, 2008
The contribution of indigenous arbuscular mycorrhiza (AM) on phosphorus (P) uptake by groundnut was examined in a low P field soil. The fungicide benomyl was applied to eradicate mycorrhizal infection. The treatments consisted of three P levels viz.
Amitava RAKSHIT, P.B.S. BHADORIA
doaj   +1 more source

AUSÊNCIA DE MICORRIZAS VESÍCULO-ARBUSCULARES EFETIVAS EM LECYTHIDACEAS NUMA ÁREA DE FLORESTA PRIMÁRIA DA AMAZÔNIA CENTRAL. [PDF]

Acta Amazonica, 1997
As Lecythidaceae compreendem uma das quatro famílias de árvores mais abundantes na floresta amazônica, mas foram pouco estudadas no que sc refere à simbiose com fungos micorrízicos dos solos.
F.W. MOREIRA, L.A. de OLIVEIRA, P. BECKER   +2 more
doaj   +1 more source

Variabilidad espacial de atributos físicos de un Typic Haplustox de los Llanos Orientales de Colômbia Spatial variability of physical attributes in a typic haplustox in the eastern planes of Colombia

Engenharia Agrícola, 2008
O objetivo deste trabalho foi estudar o comportamento da variabilidade espacial da resistência mecânica à penetração (RP), da densidade do solo, da densidade de partículas do solo, da porosidade total e dos teores de areia, silte e argila, e as relações ...
Leonardo Ramírez-López, Amparo Reina-Sánchez, Jesús H. Camacho-Tamayo   +2 more
doaj   +1 more source

Vegetative Propagation of Schizachyrium tenerum (Poaceae) Under Different Substrates and Environments

Floresta e Ambiente, 2021
The Cerrado (Brazilian Savanna) biome suffers intense degradation due to several anthropic activities and its recovery is extremely important for the restoration of environmental quality.
Letícia Sena, Thaise de O. Bahia, Geraldo Wilson Fernandes   +2 more
doaj   +1 more source