Book excerpt: The Nutrient Buffer Power Concept, a revolutionary soil testing procedure developed and tested for over more than three decades in European, African and Asian soils, looks at soil testing to devise appropriate and accurate fertilizer recommendations for many field crops, such as, summer rye, wheat, and maize among cereals, red gram among pulses, white clover among fodder crops, and black pepper and cardamom among perennial crops, with a totally new perspective as compared to routine and “text book” methods of soil testing. The center piece of the concept is the accurate quantification of a soil nutrient’s “buffer power,” which is then integrated into routine soil test data to devise appropriate and accurate fertilizer recommendations.