@article{
  author = {Tadayyon, Ali, Beheshti, Sedigheh},
  title = {Effect of Foliar Applications of Humic Acid, Iron and Zinc on some Characteristics of Negro (Guizotia abyssinica L.)},
  journal = {Journal of Crop Ecophysiology},
  year = {2016},
  volume = {10},
  number = {38},
  pages = {283-296},
  doi = {}
}