Effects of nutrient amendments on fine root biomass in a primary successional forest in Hawai'i

Abstract
We determined the effect of fertilization treatments (control (C), complete nutrient amendment without nitrogen (PT), nitrogen only (N) and a complete nutrient amendment (NPT)) on fine root biomass in a tropical montane forest in Hawai'i. Fertilization significantly decreased root biomass; live fine root mass (-2, respectively. Nutrient availability appears to control fine root mass in this primary successional forest.