After researching the planting zones, rotational rice cultivation and shrimp hatchery model at Thanh Phu ward Ben Tre province is certified to meet difficult requirements of organic cultivation. During salinity intrusion period, these areas are applied to farm shrimp. Because the economic value of shrimp is higher, farmers will ensure not to use pests in the rotational rice crops to avoid bad impacts on shrimp crops. That forms farmer's cultivation habit - not using pests in planting.

Moreover, each farm has 5 to 7 meter fence, therefore it is entirely isolated with other areas to ensure safety in organic rice production. It is certain that the planting zones can be uncontaminated by other areas and does not have emission in glass house while processing.

Additionally, Ben Tre is also an ecologically sensitive wetland. Therefore, it is hard for weeds to grow in this area's planting zones. It is unnecessary for farmers to utilize herbicide.