TY  - BOOK
AU  - Jenkinson, David S.
AU  - Smith, Keith A.
TI  - Nitrogen efficiency in agricultural soils
U1  - 631.411 
PY  - 1988///
CY  - London
PB  - Elsevier Applied Science
KW  - Fertilizantes nitrogenados
KW  - Suelos
KW  - Nitrógeno en
N1  - 37-227; Seminar on Nitrogen Efficiency in Agricultural Soils and the Efficient use of Fertilizer Nitrogen, held in Edinburgh, 16-18 September 1987
ER  -