Silicon fertilizer increased potato drought tolerance and reduced soil N₂O emissions in two Danish soils at field scale.

ABSTRACT: Silicon (Si) fertilization enhances drought tolerance, but its effectiveness under field conditions and drought intensities remains uncertain. Moreover, the role of Si in regulating greenhouse gas emissions is poorly understood. Therefore, we conducted a field experiment, to assess the effects of Si fertilization on potato yields and on N₂O and CH₄ emissions under drought stress, considering both agronomic and environmental effects. The experiment was conducted on 2 soils (Orthic haplohumod-sand and Typical agrudalf-clay) with drought intensity as main plot (acute drought-AD and severe drought-SD) and Si fertilizers as split plots (amorphous silica-ASi, diatomaceous earth-DE and no-Si addition-control). AD treatments had higher yields than SD, due to higher soil moisture availability. In b

SUBMITTER: Madegwa YM 

PROVIDER: S-EPMC12528705 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature