Limiting Chemical Fertilization in Drought Stressed Potatoes (Solanum tuberosum L.) by Using Compost: Influence in Tuber Quality and Storability

Potato yield and tuber quality are constrained by water and nutrient deficiencies and often influenced by cold storage. This is commonly resolved with excess usage of chemical fertilizers, which deteriorates soil quality. Profitably interventions to manage water and fertilizers rate are imperative. We aim to investigate the effect of compost combined to decline in NPK fertilizer on potatoes and their pliability to drought stress and cold storage. The two years field experiment (2020–2021; 2021–2022) was conducted in the central of Tunisia with the potato variety Spunta. Treatments included 100