Uusitalo, Risto, and Terhi Suojala-Ahlfors. “Yield Response of Iceberg Lettuce (Lactuca Sativa Capitata Group) to Phosphorus Fertilisation in a Boreal Soil”. Agricultural and Food Science 31, no. 3 (September 30, 2022): 220–228. Accessed May 5, 2024. https://journal.fi/afs/article/view/115347.