During the years 2530 onwards. 
agricultural subsistence lifestyle change, become the commercial agriculture 
There are corn, sugarcane, pineapple, cassava, tobacco, rice new varieties. Paper mulberry 
until about the year 2540 
began with rubber, oil palm, rice 
.The economic growth is a distraction. And expanding the area quickly. 
includes the invasion of public space 
.The use of chemicals, machinery, modern technology intensive increased debt increased production of the expanded.