S1-05
Why Vietnamese Develop Cassava Plantations while Rice is Abundant
Dung, Nguyen Lan
At
present, Vietnam is ranked second in the list of rice-exporting
countries of the world. Although
rice is abundant, cassava yields are also high, at 1773 and 1807
thousand tons in 1998 and 1999 respectively). One part of cassava is used for breeding, another is mostly
used for industry. Beside
hand-made processing, cassava is mostly collected and processed in large
scale by VEDAN-VIETNAM company, creating different products: for
instance glutamic acid, lysine, native starch, modified starch and
glucose syrup. To utilize
all the large amount of harvested cassava, we successfully researched
the simple technology for preservation of cassava trunk such as: grind
for use as material for Woody ear (Auricularia
spp.) cultivation, then after re-sterilizatiing the substrate for
cultivation of Oyster mushroom (Pleurotus
spp.). From 1 kg of cassava
trunk, the farmers can cultivate 1000g of Woody ear and 600 of Oyster
mushroom (fresh weight). Because
of the benefit from cassava growing, Vietnamese farmers continue to
expand cassava plantation, especially in the midland and mountainous
regions.
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