Acta Univ. Agric. Silvic. Mendelianae Brun. 2018, 66(1), 149-153 | DOI: 10.11118/actaun201866010149

Effect of Drip Irrigation and Complementary Nutrition with Nitrogen on Potato Quality and Yield

Petr Elzner1, Miroslav Jůzl1, Miroslav Jůzl2
1 Department of Crop Science, Breeding and Plant Medicine, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic
2 Department of Food Technology, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic

A small-plot field experiment started in 2016 studied effect of drip irrigation on potato tuber yield and starch levels in the tubers. Two potato varieties with different vegetation periods (Monika, Jolana) were exposed to four drip irrigation intensity levels. They were non-irrigated controls and irrigated tubers with 60 %, 65 % and 70 % usable soil water capacity levels. The other studied parameter was represented by the effect of nitrogen fertilisation with the nitrogen nutrient added to the irrigation water (fertigation) in the course of the vegetation period in contrast to one-off application of the whole nitrogen dose before the potato planting. All irrigated variants in comparison to the non-irrigated controls showed 30-60 % yield increase. The effect of fertigation on yields was statistically insignificant. Starch levels in the tubers were mostly affected by the variety. The irrigated variants in comparison to the non-irrigated controls showed higher starch levels in the harvested tubers but the differences were statistically insignificant.

Keywords: Potatoes, drip irrigation, fertigation, yield, starch level
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This article is the output of the project of NAZV no QJ161020 entitled: "New findings for economically and ecologically effective potato production under conditions of drought and weather fluctuations leading to long-term sustainable land management system in the areas of potato growing".

Prepublished online: February 28, 2018; Published: September 1, 2018  Show citation

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Elzner, P., Jůzl, M., & Jůzl, M. (2018). Effect of Drip Irrigation and Complementary Nutrition with Nitrogen on Potato Quality and Yield. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis66(1), 149-153. doi: 10.11118/actaun201866010149
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