List of Articles مدیریت مواد مغذی Open Access Article Abstract Page Full-Text 1 - Effect of Optimization of Chemical Fertilizers Consumption on Optimal Cropping Pattern in the Framework of Positive Mathematical Programming (Case Study of Sari Goharbaran) Khadijeh Abdi Rokni سید علی حسینی یکانی Samaneh Abedi fatemeh kashiri kolaei