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Suy nghĩ về Chiến lược Macadamia phát triển Khu vực Tây Nguyên ở miền Trung | Thoughts about Macadamia Development Strategy in Central Highland Areas Prof. Hoang Hoe Presented at Workshop on Macadamia and Sustainable development Aspect in Daklak August 4 2009 Content Practical Lessons learned Land-use Planning Diversity of plants agriculture and forestry combination Macadamia - an economical and environmental protected tree Promotion of research Development of pilot models Quality seedling Supportive policies for enterprises and farmers. Practical lessons learned Coffee farm increased dramatically in the period 1994-2005 mainly-extensive farming rather than intensive farming 90 was planted in basalt soil and lack of soil - erosion control Rubber trees are not suitable to plant in many areas Cashew trees are not suitable to plant in many areas Soil is eroded seriously Underground water becomes exhausted Generally development is spontaneous Natural Forest has been destroyed .