Effect of the application from Vitazyme in Coffea. I. Varietal response of Coffea arabica L. seedlings
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Abstract
In the Estación Central de Investigaciones de Café y Cacao during two nursery campaigns and in a factorial blocks design the response to the application of the Vitazyme of 8 varieties of Coffea arabica L. was studied at random. The bio-stimulant was applied by imbibitions in solution of 5 % for one hour. The mixture Brown soil/manure organic in proportion 3/1 was characterized by pH of lightly sour to lightly basic, acceptable contents of organic matter and of means to high of phosphorus and potassium and high capacity of cationic exchange. A significant positive answer, existed and differed to the application of the Vitazyme for all varieties. The indicators that reflected in a more frequent way the effect of the Vitazyme were the height (increase among 10 %-2 3%), the index of quality (10 % and 47 %) and the foliate area (11 %-48 %). Three groups of varieties were identified by their response to the bio-stimulant: the first one represented for ‘Island 6-11’ and ‘Island 6-12’ with high indicators of growth; the second of moderate answer composed for ‘Island 5-15’, ‘Mundo novo’, ‘San Ramón enano’ and ‘Villalobos’ and the third where the varieties of smaller response ‘Catuai’ and ‘Caturra’ were located. The seedlings of ‘San Ramón enano’ showed values of absorption of nutritious significantly inferior to the rest. The Vitazyme application increased the absorption of N 14 %, P 31 % and K 41 % for the seedlings with regard to non application and carried out in a more efficient way for the nitrogen and the potassium.
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References
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