Growth Characteristics of Seven Willow Species Distributed in Eastern Japan in Response to Compost Application

To establish a short rotation coppice (SRC) system in the temperate region of East Asia, planting was conducted for cuttings from seven species, including Salix eriocarpa, S. gilgiana, gracilistyla, integra, sachalinensis, serissaefolia, and subfragilis, with wide distribution eastern Japan. During cultivation, cheap compost derived swine manure containing high concentrations various nutrients added. Three treatment groups, control, low (5 Mg ha−1), (10 ha−1) treatments, were established, willows grown two complete growing seasons to obtain clone density 10,000 ha−1. The treatments accelerated growth all willow species after seasons. averages annual biomass production under manure, 0.2 ha−1yr−1, 5.3 8.5 respectively. By comparing biomasses willows, largest rates 14.1 13.7 ha−1yr−1 observed sachalinensis For treatment, had thickest shoots, subfragilis tallest shoots. These characteristics originate their production. Overall, these results suggest that are potentially feasible candidates SRC regions Asia.