Nutrient and Dry Matter Contents of Intensively Managed Cassava Grown on an Ultisol

Abstract

Intensively managed, properly fertilized cassava grown on a typical Ultisol had a total of 204, 12, 222, 86, and 33 kg/ha of N, P, K, Ca, and Mg, respectively, at 10 months of age, and yielded 37.5 metric tons/ha of marketable roots. Leaf contents of about 4.3, 0.12, 1.8, 1.4, and 0.4% of N, P, K, Ca, and Mg, respectively, 6 months after planting indicated adequate fertilization.