Oxisol

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Oxisol

[′äk·sə‚sȯl]
(geology)
A soil order characterized by residual accumulations of inactive clays, free oxides, kaolin, and quartz; mostly tropical.
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Ferralsols and Ultisols, the majority of P is associated with or precipitated by secondary soil minerals e.g.
Insights into [sup.33]phosphorus utilisation from Fe--and Al-hydroxides in Luvisol and Ferralsol subsoils
The two main soil types in Emusutswi are humic nitosols and ferralsols and Nyabeda and Nyalgunga have ferralsols and acrisols (Gachene and Kimaru, 2003).
Effects of Organic and Inorganic Fertilizers on the Soil Carbon Sequestration Influence of Mavuno and Manure Fertilization on Soil Carbon Fractions
Soil profiles derived from I-type granites were classified as eutric Regosols (dry and sub-humid zone) and hypereutric chromic lixisols (humid zone), whereas those developed from S-type granites were classified as eutric regosols (dry zone), dystric regosols (sub-humid zone) and dystric xanthic ferralsols (humid zone) according to the World Reference Base for Soil Resources (IUSS Working Group WRB, 2014).
Geochemical signatures and weathering rates in soils derived from different granites in contrasting climatic locations
The soil was classified as a clay loam Ferralsols (FAO, 1998).
Phosphorus and potassium fertilization increase common bean grain yield in Mozambique/Adubacao fosfatada e potassica elevam a produtividade de graos do feijoeiro em Mocambique
Attributes Details of Studied District Representing Agro-ecological Zones Agroecological zone West Nile District Moyo Location 03[degrees]39N 31[degrees]43,E Geographical location North Western Uganda Land area ([km.sup.2]) 2,059 Altitude (masl) 900-1,500 History District formed in 1956 Major geological formations Gneiss, alluvial deposits, & schist, quartzite & marble Major soil types Vertisols, Leptosols, alluvial deposits & Ferralsols Economic activities Subsistence agriculture Rainfall (mm) 1,500-1,700 Rainfall patterns March-June; August-November Dry season Late November to early March Min.
Morphological Variations in Tamarindus indica LINN. Fruits and Seed Traits in the Different Agroecological Zones of Uganda
Eutric NITISOLS: with nito-chromic CAMBISOLS and chromic ACRISOLS and LUVISOLS, partly lithic, pisoferric or petroferric phase UM 4 LB1 Well drained, very deep, dark red, very friable clay: Nito-rhodic FERRALSOLS. Table 3: Coordinates of data collection points for all the AEZs.
Allometric Equations for Estimating Silk Oak (Grevillea robusta) Biomass in Agricultural Landscapes of Maragua Subcounty, Kenya
Se encontraron 19 Grupos de suelos, la superficie ocupada por cada grupo en porcentaje con respecto a la superficie total del estado (2 466 100 ha), en orden decreciente fueron: Gleysols (20.5 %), Histosols (13.4 %), Fluvisols (10.4 %), Acrisols (9.73 %), Vertisols (7.48 %), Leptosols (7.07 %), Alisols (6.97 %), Luvisols (6.49 %), Cambisols (5.77 %), Arenosols (2.1 %), Lixisols (1.56 %), Solonchaks (1.6 %), Calcisols (0.83 %), Nitisols (0.39 %), Ferralsols (0.29 %), Plintosols (0.06 %), Tecnosols (0.04 %), Phaeozems (0.03 %) y Regosols (0.03 %) (Figura 1).
ACTUALIZACION DE LA CLASIFICACION DE SUELOS DE TABASCO, MEXICO
Carbon accumulation at depth in Ferralsols under zero-till subtropical agriculture.
Long-term nitrogen fertilization in native pasture with Italian ryegrass introduction--Effects on soil health attribute indicators/Fertilizacao nitrogenada de longo prazo em campo nativo com introducao de azevem anual--efeitos sobre atributos indicadores da saude do solo
In Nova Olinda do Norte, the dominant vegetation is classified as evergreen lowland tropical moist forest and the predominant soils are Xanthic Ferralsols (allic yellow latosol in the Brazilian system), which are heavily weathered, acidic, and very poor in nutrients such as P, Ca, and K.
Inter-site variation in allometry and wood density of Goupia glabra Aubl. in Amazonia/Variacao entre-sitios na alometria e densidade da madeira de Goupia glabra Aubl. na Amazonia
Ferralsols are the predominant soil type, in which Xanthic Ferralsols dominate the 1 000-1 800 m altitudinal zones, and Rhodic Ferralsols are dominant below 1 000 m altitudinal zones (Tran 1991, Vo et al.
Carbon stocks in tropical evergreen broadleaf forests in Central Highland, Vietnam/Stocks de carbone dans les forets de feuillus tropicales permanentes des Terres hautes centrales au Vietnam/Reservas de carbono en los bosques latifoliados perennifolios tropicales en el Altiplano central de Vietnam
The site is on gentle slope (<10%); the soils are deep, well-drained, mostly stone-free, and high in ferralsols, acrisols, and nitosols, with site index of 20 m at 25 years for Pinus kesiya [16].
Impact of site disturbances from harvesting and logging on soil physical properties and Pinus kesiya tree growth
Soil types include mostly Humic Acrisols and Plinthic Ferralsols (accounting for around 80% of the total area), Rhodic Ferralsols, Lithic Leptosols, and Eutric Fluvisols.
Modelling climate change impacts on the seasonality of water resources in the Upper Ca River Watershed in Southeast Asia

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