788-5 Soil-Site Specific Response of E. Grandis to Repeated Fertilization in Colombia.

See more from this Division: S07 Forest, Range & Wildland Soils
See more from this Session: Soil Dynamics in Forest Plantations

Thursday, 9 October 2008: 9:30 AM
George R. Brown Convention Center, 371D

Rafael Rubilar, Silvicultura, Universidad de Concepción, Concepción, Chile, John Byron Urrego, División Forestal, Smurfit Cartón de Colombia, Cali, Colombia, Howard Allen, North Carolina State Univ., Cary, NC and Thomas Fox, Department of Forestry, Virginia Polytechnic Inst. & State Univ. (Virginia Tech), Blacksburg, VA
Abstract:
Frequency of fertilization on mid-rotation Eucalyptus grandis plantations was evaluated on 9 sites in Colombia. After fertilization, maximum monthly growth response reached up to extra 4 m3ha-1 with a duration of four years at the most reponsive sites. The cummulative volume for a six year old responsive stand was 420 m3ha-1 compared to 280 m3ha-1. Site specific responses of fertilization indicated that low productivity sites surpased previously considered highest productivity sites when fertilization was applied.

See more from this Division: S07 Forest, Range & Wildland Soils
See more from this Session: Soil Dynamics in Forest Plantations