Poljoprivreda, Vol. 32 No. 1, 2026.
Izvorni znanstveni članak
https://doi.org/10.18047/poljo.32.1.3
Enrichment of Sunflower Seeds and Harvest Residues with Zn and Se Through Agronomic Biofortification
Franjo Nemet
; Sveučilište Josipa Jurja Strossmayera u Osijeku, Fakultet agrobiotehničkih znanosti Osijek, Vladimira Preloga 1, 31000 Osijek, Hrvatska
Katarina Perić
; Poljoprivredni institut Osijek, Južno predgrađe 17, 31000 Osijek, Croatia
Vladimir Zebec
; Sveučilište Josipa Jurja Strossmayera u Osijeku, Fakultet agrobiotehničkih znanosti Osijek, Vladimira Preloga 1, 31000 Osijek, Hrvatska
Vladimir Ivezić
; Sveučilište Josipa Jurja Strossmayera u Osijeku, Fakultet agrobiotehničkih znanosti Osijek, Vladimira Preloga 1, 31000 Osijek, Hrvatska
Lucija Galić
; Sveučilište Josipa Jurja Strossmayera u Osijeku, Fakultet agrobiotehničkih znanosti Osijek, Vladimira Preloga 1, 31000 Osijek, Hrvatska
Iva Nikolin
; Sveučilište Josipa Jurja Strossmayera u Osijeku, Fakultet agrobiotehničkih znanosti Osijek, Vladimira Preloga 1, 31000 Osijek, Hrvatska
Márk Rékási
; Institute for Soil Sciences, Centre for Agricultural Research, HUN-REN, Fehérvári Street 132-144, Budapest 1116, Hungary
Péter Ragályi
; Institute for Soil Sciences, Centre for Agricultural Research, HUN-REN, Fehérvári Street 132-144, Budapest 1116, Hungary
Zdenko Lončarić
; Sveučilište Josipa Jurja Strossmayera u Osijeku, Fakultet agrobiotehničkih znanosti Osijek, Vladimira Preloga 1, 31000 Osijek, Hrvatska
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* Dopisni autor.
Sažetak
This research was focused on the effectiveness of sunflower biofortification with Zn and Se towards enriched seeds, but also a side effect on the enrichment of crop residues, which can have a residual fertilizing effect. A two-year study of sunflower biofortification was conducted with foliar application of 10, 20, and 30 g/ha Se as Na-selenate or 3 and 6 kg/ha Zn as Zn sulphate in a randomized complete block design with three replications. Biofortification did not significantly affect either the seeds or the above-ground yields, but it increased the Se and Zn concentrations in seeds and vegetative mass. The Se in seeds increased 14-44 times, whereby 7.3 g/ha Se would be sufficient to achieve 300 µg/kg Se in seed. The Zn in the seed increased up to 72 mg/kg. The efficiency of biofortification in terms of Se accumulation in seeds was 15.4 – 19.3%, and Zn only 1.73 - 3.15%, which means that significant amounts of Se and Zn remain in crop residues whose incorporation into the soil has a residual effect of Zn and Se fertilization for subsequent crops.
Ključne riječi
foliar application; microelements; residual effect; sodium selenate; zinc sulphate
Hrčak ID:
348727
URI
Datum izdavanja:
30.6.2026.
Posjeta: 0 *