GENERAL INFORMATION:
Funding institution: Ministry of Agriculture and Rural Development
Project lead organization: Vietnamese Academy of Forest Sciences
Project implementation organization: Insitute of Forest Tree Improvement and Biotechnology
Project leader: MSc Ngo Van Chinh
Implementation time: 2020-2024
RESEARCH OBJECTIVES AND ACTIVITIES:
Objectives:
– Regional extend recognition of at least two cultivars with yields equivalent to or exceeding 10% compared to the commercial cultivars.
– Complete one technical guideline of planting techniques for new acacia hybrid cultivars (BV584, BV523, BV434, BV350 for the North Central region, and BV376, BV586, BB055 for the South Central region).
– Produce fifty eight thousand seedlings for the trial planting and demonstration plots.
– Establish thirty-two hectares of trials and demonstration plots.
– Establish two hedge orchards for the two regions of North Central and South Central (500 m2/orchard/region).
– Organize four training courses of planting techniques in four regions (1 course/region, 30 people/course); two training courses on techniques for propagation by tissue culture in two regions (01 course/region, for North Central and South Central regions; 10 people/course).
Project activities:
Activity 1: Yield evaluation trials of new acacia hybrid cultivars for cultivar recognition in 04 regions: North-East, North Central, South Central and South-East.
Aims 2: Complete planting techniques for new acacia hybrid cultivars.
Aims 3: Establish demonstration plots.
Aims 4: Training on techniques for planting, and techniques for propagation by tissue culture.
RESULT SUMMARY:
The project established six hectares of yield evaluation trials at four research locations: Yen The, Bac Giang (Northeastern region); Bo Trach, Quang Binh (North Central region); Dai Loc, Quang Nam (South Central region) and Dinh Quan, Dong Nai (Southeastern region). High yielding cultivars have been selected in these areas. Four cultivars were approved for mass planting, including BV584, BV586, BV376 in Yen The, Bac Giang; BV586 in Bo Trach, Quang Binh and BV523 in Dinh Quan, Dong Nai. The yield of these cultivars are superior to the trial mean and equivalent to the commercial cultivars, BV10 and AH1.
The project established two hectares of silvicultural experiments in Bo Trach, Quang Binh (North Central region) and Dai Loc, Quang Nam (South Central region). There is no significant difference in growth and stem quality between the experimental treatments. However, the treatment that retained all post-harvesting organic materials (S1) combines with basal fertilization of 500g of biofertilizer + 200g of superphosphate/pit plus additional fertilization in the first year: 150g of urea/tree (50g 1 month after planting and 100g 3 months after planting); additional fertilization in the second and third year of 200g of superphosphate/tree had the highest growth and yield.
The project planted twenty four hectares of pilot plantations in Quang Binh and Quang Nam, 12 hectares/site. The yield of these pilot models reached 21.7 – 25.8 m3/ha/year.
A technical guideline for planting new acacia hybrid cultivars (BV586, BV376, BB055, BV584, BV523, BV434, BV350) has been accomplished.
Organized four training courses on planting for new acacia hybrid cultivars (1 course/region, 30 students/class) at four forest companies in the project area. Organized two training courses on techniques for propagating by tissue culture for two companies in 2 regions (01 course/region, for the North Central and South Central regions; 10 people/class).
It is estimated that after a 7-year investment cycle, the Project will harvest about 5,134.5 tons of wood, equivalent to a revenue of about 5,741,187,900 VND. The gross profit of the project is 1,141,187,900 VND and the net profit of the project is 1,027,069,110 VND equivalent to 17.9% of total revenue and the estimated return period is 4 years.
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