Agronomic Biofortification: Enhancing the Grain Nutritional Composition and Mineral Content of Winter Barley ( Hordeum vulgare L.) Through Foliar Nutrient Application Under Different Soil Tillage Methods

Amare Assefa Bogale (), Zoltan Kende, István Balla, Péter Mikó, Boglárka Bozóki and Attila Percze
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Amare Assefa Bogale: Institute of Agronomy, Hungarian University of Agriculture and Life Sciences, Páter K. Street 1., 2100 Godollo, Hungary
Zoltan Kende: Institute of Agronomy, Hungarian University of Agriculture and Life Sciences, Páter K. Street 1., 2100 Godollo, Hungary
István Balla: Institute of Agronomy, Hungarian University of Agriculture and Life Sciences, Páter K. Street 1., 2100 Godollo, Hungary
Péter Mikó: Institute of Agronomy, Hungarian University of Agriculture and Life Sciences, Páter K. Street 1., 2100 Godollo, Hungary
Boglárka Bozóki: Institute of Agronomy, Hungarian University of Agriculture and Life Sciences, Páter K. Street 1., 2100 Godollo, Hungary
Attila Percze: Institute of Agronomy, Hungarian University of Agriculture and Life Sciences, Páter K. Street 1., 2100 Godollo, Hungary

Agriculture, 2025, vol. 15, issue 15, 1-24

Abstract: Enhancing the nutritional content of crops is crucial for safeguarding human health and mitigating global hunger. A viable method for attaining this goal is the planned implementation of various agronomic practices, including tillage and nutrient provision. A field experiment was executed at the Hungarian University of Agriculture and Life Sciences in Gödöllő in the 2023 and 2024 growing seasons. The study aimed to assess the effects of foliar nutrient supply and soil tillage methods on the grain nutritional composition and mineral content of winter barley. Employing a split-plot design with three replications, the experiment included four nutrient treatments (control, bio-cereal, bio-algae, and MgSMnZn blend) and two soil tillage types (i.e., plowing and cultivator). The results indicated that while protein content was not influenced by the main effects of nutrients and tillage, the levels of β-glucan, starch, crude ash, and moisture content were significantly ( p < 0.05) affected by the nutrient treatments and by growing year, treated as a random factor. Notably, bio-algae and bio-cereal nutrients, combined with cultivator tillage, enhanced β-glucan content. All applied nutrient treatments increased the level of starch compared to the control. With regard to grain mineral content, the iron and zinc content responded to the nutrient supply, tillage, and growing year. However, applying a multiple-nutrient composition-based treatment did not increase iron and zinc levels, suggesting that individual applications may be more effective for increasing the content of these minerals in grains. Cultivator tillage improved iron and zinc levels. Moreover, manganese (Mn) and copper (Cu) were predominantly affected by nutrient availability and by growing seasons as a random factor. Therefore, to improve grain quality, this study emphasizes the significance of proper nutrient and tillage methods by focusing on the intricate relationships between agronomic techniques and environmental factors that shape barley’s nutritional profile.

Keywords: β-glucan; biofortification; bio-algae; bio-cereal; malnutrition (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2025
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