@article{
  author = {vaseghi, elahe, Azizi, Asiyeh, Zare Mehrjerdi, Mohamadreza},
  title = {Investigating the Effect of Technological change in the Contribution of the Cost of Fertilizers and Chemical Pesticides in order to Protect the Environment (Case study: Corn production)},
  journal = {Agricultural Economics Research},
  year = {2018},
  volume = {10},
  number = {4},
  pages = {215-226},
  doi = {}
}