The forms of potassium and potassium adsorption in some virgin soils from south-western Australia

Y Pal, RJ Gilkes, MTF Wong - Soil Research, 1999 - CSIRO Publishing
This investigation was undertaken to determine the potassium (K) status and adsorption
behaviour of 227 samples from horizons of 41 representative virgin soil profiles, extending …

[图书][B] Trace elements in the rhizosphere

GR Gobran, WW Wenzel, E Lombi - 2000 - taylorfrancis.com
The first book devoted to the complex interactions between trace elements, soils, plants, and
microorganisms in the rhizosphere, Trace Elements in the Rhizosphere brings together the …

Effect of different K: Na ratios in soil on dispersive charge, cation exchange and zeta potential

E Farahani, H Emami, A Fotovat… - European Journal of …, 2019 - Wiley Online Library
The role of potassium (K) in clay dispersion in agricultural soils containing large
concentrations of K could be similar to Na. This research was carried out to assess the effect …

Influence of soil solution Ca concentration on short‐term K release and fixation of a loamy soil

A Schneider - European journal of soil science, 1997 - Wiley Online Library
The Ca concentration of the soil solution influences K plant nutrition by its influence on K
concentration of the soil solution and on soil buffer power through ion exchange and K …

Short‐term release and fixation of K in calcareous clay soils. Consequence for K buffer power prediction

A Schneider - European journal of soil science, 1997 - Wiley Online Library
Non‐exchangeable K always contributes to some degree to plant nutrition. To understand
this contribution and to deduce a predictive buffer power model the release and fixation of K …

Selective sorption of potassium in a weathering sequence of volcanic ash soils from Guadeloupe, French West Indies

S Ndayiragije, B Delvaux - Catena, 2004 - Elsevier
Volcanic ash soils are usually associated within the weathering sequence glass→
allophane→ halloysite. On the eastern slopes of the volcano La Soufrière, Guadeloupe, this …

[PDF][PDF] Potassium adsorption characteristics of soils under long term maize-legume cropping sequence

SA Bangroo, WA Mushtaq, A Tahir, MA Malik… - Afr. J. Agric …, 2012 - academia.edu
Potassium adsorption isotherms of rainfed maize growing soils of North Kashmir were
studied to visualize the adsorption behavior and factors affecting adsorption. The soils vary …

[PDF][PDF] Potasio en suelos de Yucatán

L Borges-Gómez, A Escamilla-Bencomo… - Terra …, 2005 - redalyc.org
Los suelos de Yucatán, México, muestran una amplia gama de expresiones morfológicas,
debido a la diversidad de los materiales de origen ya las condiciones climáticas y …

Surface properties and clay mineralogy of hydrated halloysitic soil clays. I: Existence of interlayer K+ specific sites

B Delvaux, AJ Herbillon, JE Dufey, L Vielvoye - Clay Minerals, 1990 - cambridge.org
Six deferrated clay (< 2 µm) samples from the major B horizons of pedons derived from
basaltic pyroclasts (Western Cameroon) were selected. These soil clays, which differ mainly …

Modelling of K/Ca exchange in agricultural soils

A Schneider, A Mollier - Geoderma, 2016 - Elsevier
The exchange selectivity of soil toward K relative to Ca increases in the depletion profile
near roots during plant uptake. The modelling of the soil K/Ca exchange is thus necessary …