Economic efficiency assessment from some Trom (Sterculia foetida L.) plantation experiment models in the dry zone at South of Central Viet Nam

Abstract

Research in economic efficiency assessment from some Trom (Sterculia
foetida L.) plantation experiment models in the dry zone at South of Central Viet Nam was a sub - content in a whole batch research topic “Research in breed selection, plantation technical and harvesting Sterculia foetida L. latex in the dry zone at South of Central Viet Nam” from 2013 to 2018. The data was collected from Sterculia foetida L. plantation experiment models in smallholders on Tuy Phong district, Binh Thuan province, and Ninh Phuoc, Thuan Nam district, Ninh Thuan province. The result on diameter growth has the range from 1,48 cm/year in MH7 to 2.98 cm/year in MH4. For height growth has the range from 0,25 m/year in MH7 to 1 m/year in MH3. For canopy’s diameter growth has the range from 0.21 m/year (MH7) to 0.72 m/year in MH3 and MH5. Survival rate was high from 74.9% in MH7 to 98% in MH4. Economic efficiency assessment from Trom (Sterculia foetida L.) plantation experiment models up to 10 - year - old show: the intensive Trom (Sterculia foetida L.) plantation experiment model (MH4) has the highest
efficiency with economic indicators show NPV ≈ 153 million VND/year,
IRR ≈ 40%, BCR ≈ 2 times and labor efficiency got 463.000 VND/day. In
agricultural trees (corn, bean) intercropping with Trom (Sterculia foetida L.) in the first 2 - year model, the density was 833 trees/hectare (MH5) also show the high economic efficiency with some indicators such as NPV ≈ 96.7 - 99.8 million VND/year, IRR ≈ 43 - 53%, BCR ≈ 1.8 times and labor efficiency got 463.000 VND/day. The plantation experiment model with the density 2.500 trees/hectare (MH1) was less economic efficiency model with labor efficiency got only 269.000 VND/day and the revenue also dropped rapidly, at the 10th year the revenue will get only 20 million / hectare/year