SALIH , H. O. Effect of Groundwater Quality on Yield Index and Nutrient Concentration in Stem Plant Tissue of Winter Wheat (Triticum turgidum L.). Polytechnic Journal, [S. l.], v. 9, n. 2, p. 11-15, 2019. DOI: 10.25156/ptj.v9n2y2019.pp11-15. Disponível em: https://journals.epu.edu.iq/index.php/polytechnic/article/view/80. Acesso em: 28 mar. 2024.