TY  - JOUR
AU  - Alimohammadi, Mehrzad
AU  - valadabadi, seed alireza
AU  - daneshiyan, jahanfar
AU  - aref, behruz
TI  - Effects of nitrogen and planting density on yield and oil content of castor (Ricinus communis L.)
JO  - Agroecology Journal
VL  - 6
IS  - 4
SP  - 57
EP  - 65
PY  - 2011
DO  - 
ER  -