Page 24 - Final Report Improving information and developing a repository of sustainable soil management practices in Asia

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3.2 Frequency of pumping water in depends on the age of cultivation and density of

the sea grapes in order to increase natural nutrients, circulate water and keep the water level in the
cultivation pond.

3.3 Shrimps and horse crabs are released into the pond to get rid of pests of the sea
grapes and for the purpose of being supplementary incomes.

4. Yield harvesting

4.1 It takes about 3 months to grow sea grapes until they can give yields. The yields
can be harvested every 2 weeks continuously for 2 years. However, harvesting cannot be conducted

during June to September due to the rainy season.

4.2 In the area of 1 rai, yields of 1,200 kilograms can be harvested.

5. Management after harvesting

5.1 Put the sea grapes in a 500 litre storage tank. Fill it with water pumped from the
pond to store the sea grapes for a night.

5.2 Sort out, clean by using the machine "skimmer" to circulate air in the water and
produce very fine air bubbles. The objective of doing this is to remove dirt contaminating the sea

grapes. The machine is turned on all the time not more than 3 days. during this time, the water has
to be drained every day.

5.3 The process of yield packaging: After cleaning the sea grapes, shake off water from

the sea grapes by using the spin and dry machine modified from the spinning bin of a washing
machine for 30 seconds. Then, pack them in foam crates supported with water absorbent pads.

5.4 The age of sea grapes lasts 7 days. The sea grapes must be kept in room
temperature.

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