TY  - BOOK
AU  - Schroth, G,
TI  - Trees, Crops and Soil Fertility Concepts and Research Methods
SN  - 0851995934
U1  - 631 
PY  - 2003///
CY  - Wallingford
PB  - CABI Publishing
KW  - Soil Fertility
KW  - Techniques, equipment & materials
ER  -