The cultivation of Black Pepper (Piper nigrum L.), a globally acclaimed spice, has been facing significant challenges over the past five years in Sri Lanka. This decline in production is primarily attributed to inadequate nutrient availability in the soil and inefficient nutrient uptake mechanisms. The lack of comprehensive knowledge regarding nutrient deficiencies and the factors influencing them has impeded effective support through agricultural extension services. To address these challenges, this study was designed to integrate of digitalization and modern technology to identify nutrient deficiencies in black pepper cultivation. Using the field surveys, laboratory analyses, farmer discussions, visual evidence, and existing data from Black Pepper growers, the study analyzed data with IBM SPSS Statistics version 27.0.1 IF026 software. The most prevalent factors were determined with the survey. Among 100 farmers in the central province, interveinal chlorosis was identified as the most common deficiency symptom, affecting 94% of lands. Additionally, plant variety, cultivation methods, soil conservation, shade management, and fertilizer application significantly impacted yield and nutrient deficiency were identified as factors. The study highlights the necessity of digitalization and modern technology for the development of a digital key for efficient deficiency identification.