Rice based is Indonesian food pattern. However, due to global climate change to increase rice production faces
difficult problems. Community lives in rural remote or isolated areas such as in the hinterland of Papua that used of
sweet potato as main staple. They are implementing the shifting agriculture can be described that their livelihood
level still under subsistence5
. Subsistence is a situation means for supporting life. It can be understood, living in
rural remote areas where the infrastructure and information as well as communication access are very limited there
is no choice for the community to live merely at subsistence style. Under subsistence living style, major activities,
attention and time (> 60 %) are allocated to fulfil the basic human need, especially producing or gathering food for
own consumption. In reality, subsistence living style is not merely undertaken by community lives in rural remote or
isolated areas with very poor or limited infrastructure, but it is also experienced by poor community lives in slum
areas of urban or suburb that are not able to spend or access the infrastructure available. The complex reason of
poverty is the main cause of subsistence community lives in slum area. Implementation or regulation economic
misuse marginalizes subsistence community under more difficult condition. People in slum areas are often assumed
as lazy, workless or jobless, and as causal of low or poor economic growth. Indeed, there living style under poor
condition was a consequence from the massy handling of development program that the main reason was to attain
better living. In the future, commercialization is must be as a gate to share fairly the profit into equity as
consequence to care farmers for sustaining high productivity under stability.
In the commercialization circumstance, including in the field under prod