AL-MAFRAGY, Othman Khalid; AL-JUBOURI, Ayman I. EFFECT OF POTASSIUM FERTILIZERS ON THE QUALITY AND QUANTITY OF FOUR VARIETIES OF COWPEA CROP (Vigna unguiculata L. walp.). Diyala Agricultural Sciences Journal , [S. l.], v. 9, n. 1, p. 56–66, 2017. Disponível em: https://journal.djas.uodiyala.edu.iq/index.php/dasj/article/view/1196. Acesso em: 30 apr. 2026.