Abstract

ALFONSO, Gustavo; ALVARADO-OCHOA, Soraya  and  CARTAGENA, Yamil. Evaluación de deficiencias nutricionales en el cultivo de quinua (Chenopodium quinoa Willd.) bajo. Siembra [online]. 2017, vol.4, n.1, pp.93-109. ISSN 2477-8850.  https://doi.org/10.29166/siembra.v4i1.504.

This research evaluated the nutritional deficiencies of the quinoa crop (Chenopodium quinoa Willd.). Two greenhouse experiments were implemented. Seedlings were transplanted in pomina and maintained for 60 days. The nutritional deficiencies were induced by using the missing element technique with nutrient solutions under a completely randomized design with fourteen treatments and three replicates for the first experiment and four replicates for the second experiment. The evaluated variables in the first experiment included plant height, stem diameter, color, and chlorophyll. The crop biomass production was evaluated in the second experiment. The results indicated that omission treatments for nitrogen (N), boron (B), and potassium (K) significantly affected all of the evaluated variables and presented visual symptoms of deficiency in the quinoa crop. Nevertheless, suphur (S) and phosphorus (P) deficiencies were also observed at the latest plant growth stages.

Keywords : Andean grain; INIAP-TUNKAHUAN; essential nutrients; mineral nutrition; nutritive solution.

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