Potato (Solanum tuberosum L.) Response to Amino Acids Biostimulants Treatment under Organic Farming System

Potato (Solanum tuberosum L.) Response to Amino Acids Biostimulants Treatment under Organic Farming System

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Volume/Issue: Volume 29: Issue 1

Published online: 18 Jun 2026

Pages: 47–54

DOI: https://doi.org/10.2478/ahr-2026-0006

Abstract

Rapid population growth and escalating ecological challenges, including pollution and soil degradation exacerbated by climate change, pose significant threats to global agriculture. Plant biostimulants, particularly amino acid–based formulations, represent a promising, environmentally sustainable approach by reducing dependence on fertilizers and pesticides while enhancing crop yield potential. In this study, the effects of three biostimulant formulations on the yield and quality of ‘Annabelle’ potatoes cultivated under organic farming conditions with drip irrigation in western Slovakia were evaluated. The tested treatments consisted of amino acids alone, amino acids combined with magnesium, and amino acids combined with calcium and boron. Tuber yield and selected quality parameters, including dry matter, vitamin C, nitrate, starch, and reducing sugar contents, were assessed. Significant yield increases were observed across all treatments, with the combinations of amino acids with magnesium and with calcium and boron showing the most pronounced effects, resulting in up to a 38.65% increase in marketable yield compared with the control. Significant differences were also detected in vitamin C, nitrate, starch, and reducing sugar contents. These findings indicate the potential of amino acid–based biostimulants to enhance crop yield and quality under organic farming conditions.

Keywords: potatoes, marketable yield, biostimulants, amino acids, nutritional components

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