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Mirriam Phiri, Jan Mulder, Benson H. Chishala, Lydia M. Chabala and Vegard Martinsen
Soils on many smallholder farms in Southern Africa are severely depleted in plant nutrients, in particular phosphorus (P), following years of maize monocropping with little or no fertilizer input. Past studies suggest that pigeon pea (Cajanus cajan (L.) ...
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Arcesio Salamanca-Carreño, Mauricio Vélez-Terranova, Oscar Mauricio Vargas-Corzo, Otoniel Pérez-López, Andrés Fernando Castillo-Pérez and Pere M. Parés-Casanova
Savannah floodplains are a natural agroecosystem located in the eastern plains of Colombia, with soils considered to be of low fertility. This assumption has not been rigorously validated by direct experimental studies. The aim of the study was to analyz...
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Jacques Carvalho Ribeiro Filho, Eunice Maia de Andrade, Maria Simas Guerreiro, Helba Araújo de Queiroz Palácio and José Bandeira Brasil
Soil?s physical and hydrological properties influence the proper modeling, planning, and management of water resources and soil conservation. In areas of vertic soils subjected to wetting and drying cycles, the soil?water?atmosphere interaction is comple...
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Jorge Alberto Rangel Mendoza, Amanda Silva Parra
Pág. 75 - 88
Resumen Autores/asDescargasReferenciasCómo citar
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Harley Quinto Mosquera, Flavio Moreno Hurtado, Haylin Yineth Caicedo Moreno, May Thelis Yineth Perez Luis Perez Luis
Pág. 53 - 67
ResumenDescargasReferenciasCómo citar
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Patrick N. Lemougna, Uphie F. Chinje Melo, Elie Kamseu and Arlin B. Tchamba
Lateritic soils are formed in the tropics through weathering processes that favor the formation of iron, aluminum, manganese and titanium oxides. These processes break down silicate minerals into clay minerals such as kaolinite and illite. Iron and alumi...
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M.H.J.P. Gunarathna, Kazuhito Sakai, Tamotsu Nakandakari, Kazuro Momii and M.K.N. Kumari
Poor data availability on soil hydraulic properties in tropical regions hampers many studies, including crop and environmental modeling. The high cost and effort of measurement and the increasing demand for such data have driven researchers to search for...
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Ouahcène Nait-Rabah, Flavio Germain, Yannick Estevez, James Guiraud, Gildas Medjigbodo, Daniel Dias and Chadi Maalouf
This paper presents the first laboratory study of four materials (three lateritic soils and one sandy soil) mainly used in road construction in French Guiana. The analysis of macroscopic behaviour by physical tests, following French standards, made it po...
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Luisa Carla de Alencar Menezes, Antonio Carlos Rodrigues Guimarães, Maria Esther Soares Marques, Tales Santos Ribeiro and Filipe Almeida Corrêa do Nascimento
The criteria for selecting materials for railway pavement (particle size distribution, California Support Index, and physical indexes) are not suitable for evaluating the hydraulic behavior of tropical soils under unsaturated conditions, often resulting ...
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Kassio F. Mendes, Marcelo R. Dos Reis, Kurt A. Spokas and Valdemar L. Tornisielo
Herbicide leaching is influenced by soil physical and chemical properties as well as the prevailing climatic conditions. However, little is known about leaching of mixture of herbicides in the soil, especially in tropical regions like Brazil. The objecti...
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Aarón Jarquín-Sánchez, Sergio Salgado-García, David J. Palma-López, Wilder Camacho-Chiu
Pág. 387 - 394
The objective of this study was to predict the concentration of soil organic matter (SOM) in tropical soils using near-infrared spectroscopy (NIRS) for samples measured within a polyethylene bag and without a bag. One hundred and fifty six soil sample...
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Sanjutha Shanmugam, Ram C. Dalal, Hans Joosten, R. J. Raison and Goh Kah Joo
The increasing global demand for vegetable oils has resulted in a significant increase in the area under oil palm in the tropics during the last couple of decades, and this is projected to increase further. The Roundtable on Sustainable Palm Oil discoura...
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Dingfang Chen, Mei Yu, Grizelle González, Xiaoming Zou and Qiong Gao
Tropical forests play an important role in regulating the global climate and the carbon cycle. With the changing temperature and moisture along the elevation gradient, the Luquillo Experimental Forest in Northeastern Puerto Rico provides a natural approa...
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Leany Enid Lugo-Avilés, Martha Laura López-Moreno, Felix R. Roman-Velazquez and Joel Lugo-Rosas
Agricultural soils are degraded worldwide as result of anthropogenic activities; environmental contamination; and excessive use of chemicals, fertilizers, and pesticides. Scientists are concerned about this problem; during the past few years sewage compo...
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Emmanuel Onweremadu, Bernadine Aririguzo, Nnaemeka Okoli, Isaiah Afangide
Pág. 99 - 111
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Jeane G. Francisco, Kassio F. Mendes, Rodrigo F. Pimpinato, Valdemar L. Tornisielo and Ana Carolina D. Guimarães
Aminocyclopyrachlor is an herbicide that belongs to the new class of chemicals known as the pyrimidine carboxylic acids, which are used to control broadleaf weeds and brush. However, the environmental behavior and fate of aminocyclopyrachlor are not full...
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Daniel M. Alongi
Mangroves are carbon-rich ecosystems that store large quantities of carbon, mostly in soils. Early carbon (C) budgets indicated that >50% of mangrove C fixation was unaccounted for. This ?missing C? has now been discovered to be a large release (423 Tg C...
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Marcelo F. Pompelli, Alfredo Jarma-Orozco and Luis Alfonso Rodríguez-Páez
Jatropha curcas is a woody-shrub species of the Euphorbiaceae family that is widely distributed in tropical and subtropical areas. The great interest in its cultivation lies in the potential for achieving elevated yields of a high-quality oil. Another ch...
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Shinji Matsumoto, Shunta Ogata, Hideki Shimada, Takashi Sasaoka, Akihiro Hamanaka and Ginting Jalu Kusuma
Soil water erosion is frequently reported as serious problem in soils in Southeast Asia with tropical climates, and the variations in pH affect the development of the erosion. This study investigated the effects of changes in pH on soil water erosion bas...
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Shinji Matsumoto, Shunta Ogata, Hideki Shimada, Takashi Sasaoka, Akihiro Hamanaka and Ginting Jalu Kusuma
Soil water erosion is frequently reported as serious problem in soils in Southeast Asia with tropical climates, and the variations in pH affect the development of the erosion. This study investigated the effects of changes in pH on soil water erosion bas...
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