Soil fertility evaluation of coffee (Coffea spp.) production systems and management recommendations for the Barahona province, Dominican Republic.
Fecha
2011Autor
Núñez, P.A.
Pimentel, A.
Almonte, I.
Sotomayor-Ramírez, D.
Martínez, N.
Pérez, A.
Céspedes, C.M.
Metadatos
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Reported yields in most coffee farms of the Barahona province in the Dominican
Republic are relatively low (< 290 kg ha-1 parchment coffee). In general, coffee
producers do not use diagnostic techniques such as soil testing. This fact prevents them
from identifying the limiting factors (especially nutrients), complicates the work of
coffee cultural management practices, and potentially reduces productivity and coffee
quality. This study was designed to diagnose the fertility level of soils in coffee farms in
the area of Barahona in 96 farms within an area of 637 hectares and design a nutrient
management strategy. Soils from each farm were sampled and analyzed for soil fertility
parameters. A survey was provided to farmers that permitted the collection of
information regarding yields, management practices, and landscape features. Soils in the
area were predominantly clayey. Soil pH varied between 4.61 and 7.69 and soil organic
matter ranged between 3.29 and 10.9%. Exchangeable potassium levels were classified
as deficient in all areas. The clustering of results identified two main components,
which accounted for 76% of the variability of the data and the grouping into five
communities by similarity of features. The results show that soil testing of this coffee
coffee-growing region can be used as a tool to diagnose the soil fertility status and guide
them in implementing management and fertilization recommendations.
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