SciELO - Scientific Electronic Library Online

 
vol.32 issue1Nutrient uptake of the criolla potato (Solanum phureja var. Galeras) for the determination of critical nutritional levelsTechnical evaluation of the fertilization of flue cured tobacco farming in Campoalegre and Garzon, Huila author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google

Share


Agronomía Colombiana

Print version ISSN 0120-9965

Abstract

LOPEZ, Andrés; GOMEZ, Manuel Iván  and  RODRIGUEZ, Luis Ernesto. Effect of edaphic and foliar applications of different doses of zinc on the yield of the Criolla Colombia cultivar. Agron. colomb. [online]. 2014, vol.32, n.1, pp.70-77. ISSN 0120-9965.  https://doi.org/10.15446/agron.colomb.v32n1.38673.

The present study was carried out in a Typic Hapludand soil in the municipality of 'El Rosal' (Colombia) and aimed to compare the yield performance of the cultivar Criolla Colombia under foliar applications of Zn chelate (0, 1, 2 and 3 kg ha-1) and edaphic applications of granulated Zn sulfated (0, 1, 2 and 3 kg ha-1). A split-plot, randomized complete block design, with four repetitions per treatment, was employed. In each category, the evaluated variables were: tuber weight and number of tubers. The results revealed that the 3.0 kg ha-1 edaphic application rendered a quadratic yield behavior with a relative increase of 7.9 t ha-1 (136%) for the first category tuber weight and 9.5 t ha-1 (68%) for total weight. In turn, the foliar application of the same dose resulted in a 5.8 t ha-1 (93%) relative increase and a first category tuber total weight increase of 3.8 t ha-1 (24%). Under the edaphic and foliar Zn applications, the number of tubers underwent 77 and 86% increases, respectively, with respect to the control. These results show the importance of Zn in photoassimilate accumulation efficiency, structure differentiation and tuber quality in this short-cycle crop.

Keywords : fertilization; diploid potato; micronutrients; tubers; Andean crops.

        · abstract in Spanish     · text in English     · English ( pdf )