@article{
  author = {Partokazemi, Azam, Delkhoosh, Babak, Mohseni, Msoud},
  title = {The effects of tillage system and plant density on yield and yield components of corn (Zea mays L.) varieties in north of Iran},
  journal = {New Finding in Agriculture},
  year = {2011},
  volume = {5},
  number = {19},
  pages = {237-247},
  doi = {}
}