Evaluation of growth and economic efficiency of some pulp-producing plants in Xuan Dai forest company, Tan Son district, Phu Tho province

Abstract

The selection of the most suitable forest planting models for pulp-producing plants is essential to meet the increasing demand of forest products of the society. It is required to select quick-growing species with high quality, and high economic efficiency. Therefore, this aspect was analyzed in the study. Data from 27 standard plots including Acacia hybrid from tissue, Acacia hybrid from cuttings and Acacia mangium 5 years old, each model has 9 plots with an area of 500 m2 /standard plots (25m ´ 20m) at Xuan Dai Forestry Company, Tan Son district, Phu Tho province was used in this study. Research results indicate that: Acacia is a fast-growing plant with strong level of disease resistance. However, The plants have different growth rates, the model with only Acacia hybrid from tissue is superior to that of the other species, such as higher average annual growth in diameter and height. In addition, all three models of acacia plantation are profitable, very safe in terms of investment capital and repayment of principal and bank loans. However, the model of Acacia hybrid from tissue with a density of 1,333plants/hecta is more economically efficient in the seven-year business cycle compared to Acacia hybrid from cuttings and Acacia mangium.