Resumo

GABRIEL, Roveda et al. Diagnosis of chemical soil fertility of the municipalities of Granada and Silvania for golden cape gooseberry production in Cundinamarca. Corpoica cienc. tecnol. agropecu. [online]. 2012, vol.13, n.2, pp.179-188. ISSN 0122-8706.

Adequate plant nutrition is essential to get high crop yields and good export quality for the cape gooseberry. In order to characterize the chemical fertility of soils of cape gooseberry producing areas in Cundinamarca, samples were taken in two major producing municipalities, Granada and Sylvania. To this end, we selected 30 farms for soil sampling and subsequent chemical characterization and determination of the nutrient content available to plants. The two municipalities were compared to determine the feasibility of general soil management recommendations, or zone specific ones. Significant differences were found between the two municipalities, especially for organic matter content, but in general, a serious cationic nutrient unbalance and extreme soil acidity were noticed, so management of soil fertility with technical criteria is required. Moreover, the high level of the micronutrients Zn and Mn found in the soils could reduce crop performance. Principal component analysis was done to produce coherent recommendations by zone that should be adjusted at the level of the farms.

Palavras-chave : cation exchange capacity; principal component analysis; soil organic matter; exchangeable acidity.

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