Volume & Issue: Volume 50, Issue 4, August 2019 
Determination of A Crop Water Stress Index (CWSI) For Detecting Water Stress time of Maize Crop in the Urmia Region

Pages 873-884


afshin khorsand; Vahid Rezaverdinejad; Hossein Asgarzadeh; abolfazl Majnooni Heris; amir rahimi; Sina Besharat; Ali Ashraf Sadraddini

Estimating the Economic Value of Water Using Willingness to Pay of Potato Farmers and the Value of Marginal Product

Pages 1023-1037


Mohammad Ali Asaadi; Mohammad Hassan Vakilpoor; Seyed Abolghasem Mortazavi; Tahere Nemati faraj