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Now showing items 11-12 of 12
Fertilidad de Typic Dystrandepts of Costa Rica. II. Aniones (N, P, B, S, Mo), materia orgánica y textura
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1984-04)
The studied anions present similar nutritional characteristics in the nine Typic Dystrandepts of Costa Rica. P deficiency is the main lümiting problem, and in practice, the only one. P retention percent varies between 80 ...
Estudio de la antracnosis en Guanábana (Annona muricata L.). I. Efecto en la morfología de las hojas
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1984-04)
Leaves of Annona muricata L. (soursop) were inoculated with a suspension of Colletotrichum gloeosporioides Penz, conidia under greenhouse conditions. Samples were taken at different time intervals and prepared for light ...