List of Articles Calcium carbonate Open Access Article Abstract Page Full-Text 1 - Optimizing the antagonistic effects of water hardness on the efficacy of 2,4-D plus MCPA by adding ammonium sulfate to control broadleaf weeds in wheat fields Mahnaz Mirzaei Eskandar Zand Alireza Hasanfard Mohammad Hosein Zamani Saied Jabbari-nick Open Access Article Abstract Page Full-Text 2 - Expectation of Chamomile Fundamental Oil Abdicate by Using the Artificial Neural Network System Nazanin Khakipour Mahtab Payandeh 10.71645/jop.2024.2401-1371 Open Access Article Abstract Page Full-Text 3 - Study of Scratch Resistance of Polyethylene and its Composite Reinforced with Nano-Sized Calcium Carbonate N. Bazobandi S.M Zebarjad S.A. Sajadi