“ENHANCING THE ECONOMIC AND HEALTH BENEFITS OF BLACKBERRY GROWN IN SOILLESS CULTURE BY FOLIAR APPLICATION OF POTASSIUM SULFATE: ENHANCING THE ECONOMIC AND HEALTH BENEFITS OF BLACKBERRY GROWN IN SOILLESS CULTURE BY FOLIAR APPLICATION OF POTASSIUM SULFATE” (2026) Iraqi Journal of Market Research and Consumer Protection, 18(2), pp. 278–289. Available at: https://www.jmracpc.uobaghdad.edu.iq/index.php/IJMRCP/article/view/619 (Accessed: 14 July 2026).