Suppression of Anthracnose of Soybeans by Calcium. J. J. Muchovej, Assistant Professor, Departamento de Fitopatologia, Universidade, Federal de Viçosa, Viçosa, 36570, MG., Brazil. Rosa M. C. Muchovej, Graduate Student, Departamento de Solos; O. D. Dhingra, Visiting Professor, and L. A. Maffia, Assistant Professor, Departamento de Fitopatologia, Universidade, Federal de Viçosa, Viçosa, 36570, MG., Brazil. Plant Dis. 64:1088-1089. Copyright 1980 American Phytopathological Society. DOI: 10.1094/PD-64-1088.

Application of CaSO₄, CaCO₃, and CA(OH)₂ significantly reduced seedling anthracnose of soybeans in the greenhouse. As little as 200 µg/g of Ca (1 meq of Ca/100 g soil) was effective. Reduction in disease was similar in seedlings grown in calcium-amended hydroponic solutions. In both hydroponic and greenhouse studies, tissue calcium increased with increased calcium applied.

Keyword(s): cerrado soil, fertilizer, nutrition.