TY  - GEN
AU  - Ennik, G C
AU  - Ryden, J C
AU  - VanDer, Meer  H G
TI  - Nitrogen flxes in intensive grassland systems
SN  - 90-247-3309-X
U1  - 633.208 VAN 
CY  - Dordrecht, Martinus Nijhoff Publishers
KW  - Grasses fertilizers
ER  -