Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 2 of 2
Full-Text Articles in Entire DC Network
Plant Responses To Fertilization Experiments In Lowland, Species-Rich, Tropical Forests, S. Joseph Wright, Benjamin L. Turner, Joseph B. Yavitt, Kyle E. Harms, Michael Kaspari, Edmund V.J. Tanner, Jelena Bujan, Eric A. Griffin, Jordan R. Mayor, Sarah C. Pasquini, Merlin Sheldrake, Milton N. Garcia
Plant Responses To Fertilization Experiments In Lowland, Species-Rich, Tropical Forests, S. Joseph Wright, Benjamin L. Turner, Joseph B. Yavitt, Kyle E. Harms, Michael Kaspari, Edmund V.J. Tanner, Jelena Bujan, Eric A. Griffin, Jordan R. Mayor, Sarah C. Pasquini, Merlin Sheldrake, Milton N. Garcia
Faculty Publications
© 2018 by the Ecological Society of America We present a meta-analysis of plant responses to fertilization experiments conducted in lowland, species-rich, tropical forests. We also update a key result and present the first species-level analyses of tree growth rates for a 15-yr factorial nitrogen (N), phosphorus (P), and potassium (K) experiment conducted in central Panama. The update concerns community-level tree growth rates, which responded significantly to the addition of N and K together after 10 yr of fertilization but not after 15 yr. Our experimental soils are infertile for the region, and species whose regional distributions are strongly associated …
Potassium, Phosphorus, Or Nitrogen Limit Root Allocation, Tree Growth, Or Litter Production In A Lowland Tropical Forest, S. Joseph Wright, Joseph B. Yavitt, Nina Wurzburger, Benjamin I. Turner, Edmund V.J. Tanner, Emma J. Sayer, Louis S. Santiago, Michael Kaspari, Lars O. Hedin, Kyle E. Harms, Milton N. Garcia, Marife D. Corre
Potassium, Phosphorus, Or Nitrogen Limit Root Allocation, Tree Growth, Or Litter Production In A Lowland Tropical Forest, S. Joseph Wright, Joseph B. Yavitt, Nina Wurzburger, Benjamin I. Turner, Edmund V.J. Tanner, Emma J. Sayer, Louis S. Santiago, Michael Kaspari, Lars O. Hedin, Kyle E. Harms, Milton N. Garcia, Marife D. Corre
Faculty Publications
We maintained a factorial nitrogen (N), phosphorus (P), and potassium (K) addition experiment for 11 years in a humid lowland forest growing on a relatively fertile soil in Panama to evaluate potential nutrient limitation of tree growth rates, fine-litter production, and fine-root biomass. We replicated the eight factorial treatments four times using 32 plots of 40×40 m each. The addition of K was associated with significant decreases in stand-level fineroot biomass and, in a companion study of seedlings, decreases in allocation to roots and increases in height growth rates. The addition of K and N together was associated with significant …