Results 61 to 70 of about 5,226 (300)

Water-Soluble and Exchangeable Components of Vietnam Acid Sulfate Soils [PDF]

open access: yes, 1977
Water-soluble and exchangeable components of Vietnam acid sulfate soils were analyzed. Large amounts of water-soluble Fe, Al, Ca and Mg sulfates and sulfuric acid were found. Their amount and the ratio of the amounts of water-soluble ions to those of the
Tho, Huynh-tong   +2 more
core  

Exchangeable complex and taxonomy and management of ferrallitic soils from Angola [PDF]

open access: yes, 2015
The cation exchange capacity, sum of exchangeable bases, and saturation base degree of Ferralitic soils from the Republic of Angola, determined by the Mehlich and ammonium acetate methods, were compared to update their taxonomy; also, the exchangeable ...
Ricardo, Rui Pinto, Madeira, Manuel
core   +4 more sources

Effect of manure, clay, charcoal, zeolite, and calcium oxide on some properties of soil contaminated with cobalt

open access: yesSoil Science Annual, 2017
The study has been undertaken in order to determine the influence of different substances (manure, clay, charcoal, zeolite and calcium oxide) on soil pH, hydrolytic acidity, total exchangeable bases, cation exchange capacity, the base saturation of soil ...
Kosiorek Milena, Wyszkowski Mirosław
doaj   +1 more source

Spatial prediction of soil acidity and nutrients for site-specific soil management in Bedele district, Southwestern Ethiopia

open access: yesAgriculture & Food Security, 2021
Background Understanding the spatial variability of soil properties is useful to tailor site-specific agricultural inputs to enhance crop production on a sustainable basis.
Gedefa Sori   +2 more
doaj   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

open access: yesFEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure   +3 more
wiley   +1 more source

Acidity control in Latosols under long-term pastures in the Cerrado region, Brazil [PDF]

open access: yes, 2013
High acidity and aluminium saturation are among the main limiting factors for crop production in tropical soils. The aim of this work was to measure the acidity of Latosols under pastures in the Brazilian Cerrado and to assess the influence of clay ...
Vendrame, P.   +15 more
core   +3 more sources

The human gut microbiome across the life course

open access: yesFEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero   +4 more
wiley   +1 more source

Spatial Distribution and Evolution of pH as a Function of Cation Exchange Capacity, Sum of Exchangeable Bases, and Organic Matter and Aluminum in the Soils of Foumban

open access: yesApplied and Environmental Soil Science, 2023
Foumban, located in the Noun valley in western Cameroon, is a prime location for food production. However, this locality is experiencing a significant decline in productivity due to the acidity of its soil.
Vivien Piercy Lotse Tedontsah   +7 more
doaj   +1 more source

The nature of acidity in selected acid soils [PDF]

open access: yes, 1977
Vita.Most of the soils in the eastern one-third of Texas are acid. To this date little work has been done to evaluate the acid status of these soils. The present effort was initiated to study total acidity and the contribution of the components to that ...
Carson, Charles Dee
core  

Isotopically exchangeable Al in coastal lowland acid sulfate soils [PDF]

open access: yes, 2016
International audiencePeriodic discharges of high concentrations of aluminium (Al) causing fish kills and other adverse effects occur worldwide in waterways affected by coastal lowland acid sulfate soils (CLASS).
Fink, D   +9 more
core   +1 more source

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