TY  - JA
AU  - Yamada,I.
AU  - Shoji,S.
TI  - Retention of potassium by volcanic glasses of the topsoils of andosols in Tohoku, Japan
SN  - 0038-075X
U1  - 83-890253 
PY  - 1982///
KW  - Japan
KW  - Soil chemistry and physics
N1  - ill. Includes 14 ref
T2  - Soil Science
ER  -