%0 Journal Article %A vaseghi, elahe, Azizi, Asiyeh, Zare Mehrjerdi, Mohamadreza %T 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) %J Agricultural Economics Research %V 10 %N 4 %P 215-226 %D 2018 %R %U https://sanad.iau.ir/fa/Article/1159592