TY  - JA
AU  - Alberda,T.
AU  - Sibma,L.
TI  - The influence of length of growing period, nitrogen fertilization and shading on tillering of perennial ryegrass (Loli um perenne L.)
PY  - 1982///
KW  - Lolium perenne
KW  - Shading
KW  - Tillering
KW  - Nitrogen fertilizers
KW  - AGROVOC
T2  - Netherlands Journal of Agricultural Science
ER  -