Cation-exchange capacity (CEC) is a measure of how many cations can be retained on soil particle surfaces. Negative charges on the surfaces of soil particles...

exchangers are either cation exchangers, which exchange positively charged ions (cations), or anion exchangers, which exchange negatively charged ions...

negative ions are flushed out, renewing the resin exchange capacity. Formula: R−H acidic The cation exchange method removes the hardness of water but induces...

attract and release cations in what is referred to as cation exchange. Cation-exchange capacity is the amount of exchangeable cations per unit weight of...

the soil's cation exchange capacity. The higher the CEC, the higher the negative charge and the more cations that can be held and exchanged with plant...

ethylene glycol at 60 °C (140 °F) for eight hours. CEC is the cation exchange capacity of the clay. K2O (%) is the percent content of potassium oxide...

its cation exchange capacity is due to isomorphous substitution of Mg for Al in the central alumina plane. The substitution of lower valence cations in...

glauconite, in sediments can be differentiated by x-ray analysis. The cation-exchange capacity (CEC) of illite is smaller than that of smectite but higher than...

depths no more than ten percent weatherable minerals, and low cation exchange capacity. Oxisols are always a red or yellowish color, due to the high concentration...

limited-expansion clay with a medium shrink–swell capacity. Vermiculite has a high cation-exchange capacity (CEC) at 100–150 meq/100 g. Vermiculite clays...

ammonium (NH+ 4) cation produced by urea hydrolysis which is a strongly sorbing cation exchanges with the weakly sorbing Na+ cation from the soil structure...

Resources (WRB). Alisols have an argic horizon, which has a high cation exchange capacity. In the subsoil, the base saturation is low. There exist mixed...

include increased moisture-holding properties in the soil, improved cation exchange capacity and better soil structure and drainage. Rockdust also provides...

percentage of organic matter, soil pH, and nutrient holding capacity (cation exchange capacity) are tested in a regional laboratory. Agronomists will interpret...

choose to consume at the clay licks do not have higher levels of cation-exchange capacity (ability to absorb toxins) than that of unused areas of the clay...

potential of different land use of Northeast India Predicting Soil Cation Exchange Capacity in Entisols with Divergent Textural Classes: The Case of Northern...

and may be related to the soil cation exchange capacity. Soils with high clay content will have a higher buffering capacity than soils with little clay,...

gram, the capacity of humus to hold nutrients and water is far greater than that of clay minerals, most of the soil cation exchange capacity arising from...

silicate minerals like feldspar. It has a low shrink–swell capacity and a low cation-exchange capacity (1–15 meq/100 g). Rocks that are rich in kaolinite, and...

soil CEC (cation exchange capacity) and determination of available potassium in soil wherein the ammonium ion acts as a replacement cation for potassium...

; Smillie, G. W. (May 1976). "Estimation of Components of Soil Cation Exchange Capacity from Measurements of Specific Surface and Organic Matter". Soil...

groups and soluble at a low pH of <1. Fulvic acids have a higher cation exchange capacity and therefore have a higher chemical interaction with fertilizers...

potassium is a common component in their clay content, and because the cation-exchange capacity of clay causes them to absorb uranium and thorium. This difference...

wild and cultivated in sandy-loamy soils of pH 4.34–5.01 with low cation-exchange capacity and high metal content.[citation needed] The vegetation type preferred...

saturation of the cation exchange capacity (CEC) of the soil. Most 'ideal soil' theories stress both approaches. (See also – Cation exchange capacity) Strictly...

nematodes, annelids and arthropods. Soil acidity or soil pH and cation-exchange capacity: Root cells act as hydrogen pumps and the surrounding concentration...

natural cation-exchange capacity of soils tends to immobilize plutonium, uranium, and caesium cations. However, the anion-exchange capacity is usually...

substances account for 50 – 90% of cation exchange capacity. Similar to clay, char and colloidal humus hold cation nutrients. A typical humic substance...

suitability of the water for irrigation in clay soils which have a high cation exchange capacity. When dissolved sodium in comparison with dissolved calcium and...

increase soil pH depends on the buffer capacity of the soil (this is generally related to soil cation exchange capacity or CEC). Most acid soils are saturated...