Citas bibligráficas
Acuña, M., (2022). Fraccionamiento de la fertilización foliar con Zinc en la biofortificación agronómica del cultivo de Papa [Universidad Nacional Agraria La Molina]. https://hdl.handle.net/20.500.12996/5500
Acuña, M., Fraccionamiento de la fertilización foliar con Zinc en la biofortificación agronómica del cultivo de Papa []. PE: Universidad Nacional Agraria La Molina; 2022. https://hdl.handle.net/20.500.12996/5500
@misc{renati/1114551,
title = "Fraccionamiento de la fertilización foliar con Zinc en la biofortificación agronómica del cultivo de Papa",
author = "Acuña Eulogio, Marilu",
publisher = "Universidad Nacional Agraria La Molina",
year = "2022"
}
The limitation of zinc in soils causes a deficiency in crops, generating food with a low concentration of this micronutrient. Agronomic biofortification through foliar or soil fertilization is an alternative to enrich the content of micronutrients in the edible part of food. Being the potato tuber, an easily accessible food for families living in rural areas. Considering the aforementioned and the good results obtained in different studies on biofortification, the present work seeks to evaluate the contribution of agronomic biofortification of the potato crop of the UNICA variety, with foliar applications of zinc sulfate. The experiment was carried out at the IRD – Costa, in the district of Cañete, province of Cañete-Lima, in the 2018 agricultural campaign. Five treatments were evaluated in which two doses of zinc were combined (5 and 10 kg Zn ha- 1) applied in two divisions (: 4 and 8 foliar applications) and a control (without zinc foliar applications). Foliar applications with Zn were started 42 days after sowing. A completely randomized block design with four replications was used, the experimental unit being plots of 30 m2. The variables evaluated were yield, coverage, plant height and zinc concentration in leaves, peel and pulp of the potato tuber.The results of treatments with foliar applications of zinc (zinc sulfate heptahydrate) in potato crops show that it is possible to increase the concentration of this element in the tuber peel by 88.26% (from 19.6 mg Zn kg-1 MS up to 36.9 mg Zn kg-1 MS) and 67.5% in the pulp (from 12.0 mg Zn kg-1 MS to 20.1 mg Zn kg-1 MS). However, foliar applications with zinc negatively affected the height, leaf cover, total yield and dry matter of the potato crop tuve.
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