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Method for the economic recovery of Sugar-palm (Tao) (Arenga westerhoutii Griff.) community forests

Author(s): Anucha Chantaraboon | Intawat Burikam | Savent Pampasit | Ratchada Pongsattayapipat

Journal: Songklanakarin Journal of Science and Technology
ISSN 0125-3395

Volume: 32;
Issue: 4;
Start page: 357;
Date: 2010;
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Keywords: Arenga westerhoutii | propagation | recovery | restore | sugar-palm

This study purposes to find a practical method to increase the number of sugar-palm (Tao) trees and restore thecommunity forest in northern Thailand. The experiments dealt with three aspects of sugar-palm seedlings. These were: 1) tofind the most efficient method of propagation, 2) to search for the best way for separation and transplantation, and 3) to findthe best growth promoter. This project was conducted from October 2005 to June 2007 at San Charoen Village, Pha ThongCommunity, Tha Wang Pha District, Nan Province. The results were as follows: Firstly, trimming both ends of 36-month-oldsugar-palm seeds provided the shortest period of germination. As a side benefit, it was easier to peel the seeds out of thefruit. Secondly, the most efficient way of separating seedlings was transplanting them immediately with their one leaf cuttwo-thirds off. Spraying with water every two hours during the first week guaranteed 82 percent of survival of the seedlings.Lastly, 15-15-15, 13-13-21 and 46-0-0 fertilizer formulations promoted the growth of one- to three-year sugar-palm seedlings.These seedlings produced more new green emerging leaves than the unfertilized plant. However, when economics areconsidered, the non-fertilizer application gave a better net benefit than the three fertilizer formulations. Therefore, we recommendthat the sugar-palm be planted in community forests in northern Thailand using plenty of water, with a propertillage practice, and without costly fertilizer. We also imply that farmers will be more confident in restoring their sugar-palmforests using this technique because they have an active role in the research project.

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