Optimization of Irrigation and Nitrogen Levels on Yield, Water Use Efficiency, and Nitrogen Use Efficiency of Quinoa (Chenopodium quinoa Willd.) by Using the Surface-Response Methodology Journal title: Iranian Journal of Field Crops Research Authors: P Rezvani Moghaddam,S Khorramdel,H Latifi,M. R Farzaneh Belgerdi,S. J Davarpanah, Subject(s): Agricultural Science, Plant Sciences