TY  - BOOK
AU  - Colwell,J.D.
TI  - Estimating fertilizer requirements: a quantitative approach 
SN  - 0851989055
AV  - S633 .C726 1994
U1  - 631.8/1 21
PY  - 1994///
CY  - Wallingford, Oxon
PB  - CABI
KW  - Fertilizer requirements
KW  - Statistical methods
KW  - Mathematical models
N1  - Includes bibliographical references and index
UR  - http://www.loc.gov/catdir/enhancements/fy0635/95161876-d.html
ER  -