TY  - BOOK
AU  - Whitehead, D. C.
TI  - Role of Nitrogen in Grassland Productivity: A review of information from temperate regions
SN  - 0851980155
U1  - 631.84 
PY  - 1970///
CY  - England
PB  - Commonwelth Bureau of Pastures and Field Crops
KW  - Agriculture and related technologies
KW  - Technology (Applied sciences)
KW  - Grassland
KW  - Nitrogen
ER  -