Evan Batzer Siddharth Bharath Elizabeth T. Borer Sofia Campana Ellen Esch Yann Hautier Timothy Ohlert Eric W. Seabloom Peter B. Adler Jonathan D. Bakker Lori A. Biederman Miguel N. Bugalho Maria Caldeira Qingqing Chen Kendi F. Davies Philip A. Fay Johannes M. H. Knops Kimberly Komatsu Jason P. Martina Kevin S. McCann Joslin L. Moore John W. Morgan Taofeek O. Muraina Brooke Bossert Osborne Anita C. Risch Carly J. Stevens Peter A. Wilfahrt Laura Yahdjian Andrew S. MacDougall Josep Penuelas Oliver Carroll 2022 <div class="abstract-group"><div class="article-section__content en main"><p>Nutrient enrichment can simultaneously increase and destabilise plant biomass production, with co-limitation by multiple nutrients potentially intensifying these effects. Here, we test how factorial additions of nitrogen (N), phosphorus (P) and potassium with essential nutrients (K+) affect the stability (mean/standard deviation) of aboveground biomass in 34&nbsp;grasslands over 7&nbsp;years. Destabilisation with fertilisation was prevalent but was driven by single nutrients, not synergistic nutrient interactions. On average, N-based treatments increased mean biomass production by 21–51% but increased its standard deviation by 40–68% and so consistently reduced stability. Adding P increased interannual variability and reduced stability without altering mean biomass, while K+ had no general effects. Declines in stability were largest in the most nutrient-limited grasslands, or where nutrients reduced species richness or intensified species synchrony. We show that nutrients can differentially impact the stability of biomass production, with N and P in particular disproportionately increasing its interannual variability.</p></div></div> application/pdf 10.1111/ele.13946 en Wiley Nutrient identity modifies the destabilising effects of eutrophication in grasslands article