抄録
We measured the selectivity coefficient (K V) for K-Ca exchange equilibrium as a function of K-saturation on two smectitic soils, two halloysitic soils and a soil dominated by noncrystalline aluminum silicates. The selectivity coefficients for all the soils decreased as K-saturation increased. Among the five soils, the halloysitic soils exhibited higher K Vvalues than the smectitic soils, while the K Vvalues for the soils dominated by noncrystalline aluminum silicates were comparable with those of the halloysitic soils at low K-saturation but the K Vvalues were even lower than those for the smectitic soils at higher K-saturation. Numerical simulations showed that the K concentration in the soil solution after addition of a K-salt differed significantly among the soils, depending on the exchangeable K status and K-selectivity of the soils.
| 元の言語 | 英語 |
|---|---|
| ページ（範囲） | 129-138 |
| ページ数 | 10 |
| ジャーナル | Soil Science and Plant Nutrition |
| 巻 | 39 |
| 発行部数 | 1 |
| DOI | |
| 出版物ステータス | 出版済み - 1 1 1993 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Soil Science
- Plant Science
これを引用
Potassium-calcium exchange in five Ap soils from paddy fields and its effect on potassium concentration in soil solution. / Wada, Shin-Ichiro; Odahara, Koji; Odahara, Koji.
：: Soil Science and Plant Nutrition, 巻 39, 番号 1, 01.01.1993, p. 129-138.研究成果: ジャーナルへの寄稿 › 記事
}
TY - JOUR
T1 - Potassium-calcium exchange in five Ap soils from paddy fields and its effect on potassium concentration in soil solution
AU - Wada, Shin-Ichiro
AU - Odahara, Koji
AU - Odahara, Koji
PY - 1993/1/1
Y1 - 1993/1/1
N2 - We measured the selectivity coefficient (K V) for K-Ca exchange equilibrium as a function of K-saturation on two smectitic soils, two halloysitic soils and a soil dominated by noncrystalline aluminum silicates. The selectivity coefficients for all the soils decreased as K-saturation increased. Among the five soils, the halloysitic soils exhibited higher K Vvalues than the smectitic soils, while the K Vvalues for the soils dominated by noncrystalline aluminum silicates were comparable with those of the halloysitic soils at low K-saturation but the K Vvalues were even lower than those for the smectitic soils at higher K-saturation. Numerical simulations showed that the K concentration in the soil solution after addition of a K-salt differed significantly among the soils, depending on the exchangeable K status and K-selectivity of the soils.
AB - We measured the selectivity coefficient (K V) for K-Ca exchange equilibrium as a function of K-saturation on two smectitic soils, two halloysitic soils and a soil dominated by noncrystalline aluminum silicates. The selectivity coefficients for all the soils decreased as K-saturation increased. Among the five soils, the halloysitic soils exhibited higher K Vvalues than the smectitic soils, while the K Vvalues for the soils dominated by noncrystalline aluminum silicates were comparable with those of the halloysitic soils at low K-saturation but the K Vvalues were even lower than those for the smectitic soils at higher K-saturation. Numerical simulations showed that the K concentration in the soil solution after addition of a K-salt differed significantly among the soils, depending on the exchangeable K status and K-selectivity of the soils.
UR - http://www.scopus.com/inward/record.url?scp=0005095750&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0005095750&partnerID=8YFLogxK
U2 - 10.1080/00380768.1993.10416982
DO - 10.1080/00380768.1993.10416982
M3 - Article
AN - SCOPUS:0005095750
VL - 39
SP - 129
EP - 138
JO - Soil Science and Plant Nutrition
JF - Soil Science and Plant Nutrition
SN - 0038-0768
IS - 1
ER -