%0 Journal Article
%A Mirshekari, Bahram
%T Yield and harvest  index of sunflower (Helianthus  annus) grown by a monocultur system in competition  with redroot pigweed (Amaranthus retroflexus)
%J Agroecology Journal
%V 6
%N 1
%P 73-88
%D 2010
%R 
%U https://sanad.iau.ir/fa/Article/1124757