Results 61 to 70 of about 20,693 (272)
Acta Amazonica, 2004 Com o objetivo de determinar as características de adsorção de fósforo utilizando-se a isoterma de Langmuir, e suas relações com algumas propriedades físicas e químicas de solos, foi desenvolvido um estudo no Laboratório de Solos do Instituto Nacional de
Newton Paulo de Souza Falcão +1 more
doaj +1 more source
Soil phosphorus properties and management for perennial crops in the central Amazon. [PDF]
, 2014 Predominant soils in the Brazilian Amazon. Phosphorus constraints to continuous soil use in the Brazilian Amazon. Phosphorus fertilization to perennial crops in the central Amazon.
CRAVO, M. S. +2 more
core
Fate of ZnO nanoparticles in soils and cowpea (Vigna unguiculata) [PDF]
, 2013 The increasing use of zinc oxide nanoparticles (ZnO-NPs) in various commercial products is prompting detailed investigation regarding the fate of these materials in the environment. There is, however, a lack of information comparing the transformation of
Glover, Chris J. +7 more
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Agroforestry and enhanced rock weathering: A dual strategy for sustainable cacao
PLANTS, PEOPLE, PLANET, Volume 8, Issue 3, Page 843-860, May 2026.Cacao production is both economically vital and environmentally intensive, presenting a major sustainability challenge as a crop largely cultivated by smallholder farmers in climate‐vulnerable regions. This review synthesises evidence that integrating agroforestry with enhanced rock weathering (EW) may significantly reduce emissions from cacao ...
Isabella L. Steeley +4 more
wiley +1 more source
Compaction of an Oxisol and chemical composition of palisadegrass [PDF]
Revista Brasileira de Ciência do Solo, 2013 Compaction is an important problem in soils under pastoral land use, and can make livestock systems unsustainable. The objective of this research was to study the impact of soil compaction on yield and quality of palisade (UROCHLOA BRIZANTHA cv. Marandu). The experiment was conducted on an Oxisol in the State of Mato Grosso, Brazil.
Sousa Neto, Eurico Lucas de +2 more
openaire +4 more sources
Improving Phosphate Efficiency by Phosphate Solubilizing Bacteria and Organic Matter Estimated by Radio Isotop (32P) Technique in Some Soils [PDF]
, 2012 Phosphorous (P) contents in many soils are varies highly along with their ability to provide available P to plant growth. Soils may contain very high in total P, but low in available P due to high P adsorbed by soil matrix and all their adsorbing agents.
Mudjiharjati, A. (Arie) +2 more
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Zinc, copper, boron and iron requirement of upland rice grown on a Brazilian Oxisol. [PDF]
, 2014 The objective of this study was to determine requirement of zinc (Zn), copper (Cu) boron (B) and iron (Fe) for upland rice grown on a Brazilian ...
FAGERIA, N. K., NASCENTE, A. S.
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Micronutrients for cacao: Availability classes in two soil layers
Soil Science Society of America Journal, Volume 90, Issue 3, May/June 2026.Abstract Efficient management of soil micronutrients is crucial for the yield and sustainability of cacao (Theobroma cacao L.), especially in tropical regions. However, specific availability classes for copper (Cu), iron (Fe), manganese (Mn), and zinc (Zn), extracted by Mehlich‐1, had not yet been established for the crop in Brazil. This study presents,
Edson da Silva de França +4 more
wiley +1 more source
Papaya carotenoids increased in Oxisols soils
Agriculture and Natural Resources, 2017 Abstract The papaya fruit is healthy for humans as it contains high levels of antioxidants and provitamin A due to high lycopene and β-carotenes contents, respectively. The carotenoids were determined from papayas grown in three different locations—Kamphaeng Saen (KS), Sisaket (SK), and Tha Mai (TM)—and also the study investigated whether the Oxisols
Kamonwan Sangsoy +3 more
openaire +1 more source
Ciência Rural, 2010 Em solos sob cultivo de cana-de-açúcar, o tráfego intenso de máquinas agrícolas pode provocar estado de compactação ao solo. Portanto, o objetivo deste trabalho foi caracterizar a variabilidade espacial de atributos físicos e teor de matéria orgânica de ...
Zigomar Menezes de Souza +2 more
doaj