Diagnosis and recommendation integrated system (DRIS) is applicable for

Diagnosis and recommendation integrated system (DRIS) is a mathematical technique to apply plant analysis information (Nutrient concentration) for diagnosing the most limiting nutrient in a production system.
DRIS is a widely used statistical approach for interpretation of the plant tissue analysis data and diagnosing the plant nutrient needs much earlier than the reduction of crop yield with greater accuracy. It is applicable for long-duration crops.