TY  - BOOK
ED  - Rural Development Administration
TI  - Rda journal of agricultural science.
U1  - 631.49519505 RDA 1994 
PY  - 1994///
CY  - Korea
PB  - Rural Development Administration
KW  -  Soil fertility | Korea (South) | Soils
N1  - Agricultural Engineering; Sericulture
; Farm Management

ER  -