Resumo

RIOS QUINCHOA, Jairo Yovani; JARAMILLO VILLEGAS, Sonia del Carmen; GONZALEZ SANTAMARIA, Luis Hernán  e  COTES TORRES, José Miguel. DETERMINATION OF THE EFFECT OF DIFFERENT LEVELS OF FERTILIZATION IN POTATO (SOLANUM TUBEROSUM SSP. ANDIGENA) DIACOL CAPIRO IN A SOIL WITH PROPERTIES ANDICAS OF SANTA ROSA DE OSOS, COLOMBIA. Rev. Fac. Nac. Agron. Medellín [online]. 2010, vol.63, n.1, pp.5225-5237. ISSN 0304-2847.

The fertilization is a work that fulfills the supplementary to the plant nutritional necessities that are not satisfied by the soil, in its condition of natural fertility. For many decades faulty doses has been used that take to low productions, and in occasions excessive doses of chemical fertilizers that lead to environmental problems. The fertilization with nutritious secondary (Ca, Mg, S) and the micronutrient B, has been little studied in potato crop in Colombia; for this reason, we evaluated, in the Centro de Investigacion e Innovación Agropecuaria y Forestal Paysandú of the La Universidad Nacional de Colombia (Medellín), the effect of different doses of these nutrients, in a cultivation of potato of the variety DIACOL Capiro in a soil with andics properties of Santa Rosa de Osos. Low, moderate and high doses of NPK, Ca, Mg, B and S, was used, and it was a positive result in yield to the growing applications of NPK (500, 1.500 and 3000 kg ha^-1), significant differences were also presented in weight in the tubers of first and second category, while the tubers of third and quarter category did not present significant differences. The interactions among Ca, Mg, B and S didn't have appreciable effect on the yield of the tubers, since in most of the alone cases one observes the simple effects of this elements.

Palavras-chave : Fertilization; nutrients; Solanum tuberosum; DIACOL Capiro.

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