List of Articles نظامهای زراعی Open Access Article Abstract Page Full-Text 1 - Energy Flow and Greenhouse Gases Emission of Crop Production Systems in South Khorasan Province hamed javadi Seyed Mohammad Jafar Esfahani 10.30495/jest.2023.66462.5642 Open Access Article Abstract Page Full-Text 2 - Study on unnecessary elements in leafy vegetables of polluted farmland to heavy metals at around Shahr-e-Qods بهزاد Sani