Abstract

BUSTAMANTE GONZALEZ, Carlos et al. Influence of rainfall on the yield of Coffea canephora Pierre ex Froehner cultivated in cambisol soils of the eastern region of Cuba. cultrop [online]. 2015, vol.36, n.4, pp. 21-27. ISSN 1819-4087.

In order to evaluate the effect of rainfall on the yield of the species Coffea canephora Pierre ex Froehner cultivated in brown soils in two coffee areas of eastern part of Cuba (Cruce de los Baños site, located in the municipality Tercer Frente, Sierra Maestra hills and Alcarraza site, located in the municipality of Sagua Tánamo, Nipe-Sagua-Baracoa hills). Data from two production cycles of this specie were used in an experiment of study of nitrogen fertilizer dose, planted in 1996 and pruned in 2003. Regressions between yields and annual rainfall were established. Different mathematical models were used, selecting the highest coefficient of determination (R²). A strong relationship between annual rainfall and maximum stable yields at both sites and cycles (R²> 90%) was found. With rainfall in the range of 1 400 mm – 1 600 mm in "Tercer Frente" and "La Alcarraza", were not obtained more than 1,30 t ha^-1 green coffee year^-1, while annual rainfall values from 1 750 mm to 1 900 mm allowed yields from 1,4 t ha^-1 to 1,8 t ha^-1 of green coffee. When rainfall amounted to 2 000 mm at both sites, 2 t ha^-1 green coffee year-1 were obtained

Keywords : Coffea canephora; clime; rainfall; yield; correlation.

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