Wood Production Utilizing Raw Sewage In Ojinaga, Chihuahua, México
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M. Tena Vega, J. Mexal, G. Barragan, H. O. Rubio & M. Sosa C.
The objective was to evaluate a commercial forest plantation using raw sewage in Ojinaga, México. A total of seven materials were used: three genetic lines of Eucalyptus camaldulensis, three of Populus deltoides and one of Robina pseudoacacia. Each genetic line was considered as a treatment and six repetitions were used. Forty nine plants were established in each treatment and the evaluation was performed on the 25 most centrally located plants. A total area of 1.5 ha was used for the experiment. Completely randomized designs were used. Plant height, diameter and plant survival were determined 33 months after planting. The genus Eucalyptus presented the best performance reaching a plant height of 7.78 m, a diameter of 7.8 cm and a 96.2% survival. Populus showed a plant height of 6.24 m, a diameter of 5.4 cm; but poor survival with 55.1%. Although Robinia genus had a good plant survival (86.9%) it was the worst in plant height (5.04 m) and diameter (3.5 m). Wood production from irrigation with raw sewage may be a feasible alternative to using water and fertilizer in the state of Chihuahua. Keywords: forest, plantation, raw sewage, Eucalyptus, Populus, Robina. 1 Introduction The forestry sector in México is going through a severe crisis. On one side, the demand of goods and services of forest resources has increased in a constant way; on the other side, the offer has diminished in a great proportion. The main
forest, plantation, raw sewage, Eucalyptus, Populus, Robina.