TY  - JOUR
TI  - Study of grain yield of sunflower (Helianthus annuus L.) and corn (Zea mays L.) in different ratios of intercropping
JO  - research in crop science
VL  - 2
IS  - 8
SP  - 56
EP  - 66
PY  - 2013
DO  - 
ER  -