Butt RM, Akhtar MS, Mehmood A, Imran M, Rukh S, Kayani GS, Siddique MT, Abbasi KS, Qayyum A, Ahmad Z. Relationship of soil potassium forms with maize potassium contents in soils derived from different parent materials. Ital J Agronomy [Internet]. 2017 Jun. 23 [cited 2024 Nov. 21];12(2). Available from: https://www.agronomy.it/agro/article/view/818