1.) plantations of corn, 2 rubber plantation together with corn) 2-year 2-year 3) rubber plantation 4) rubber plantation 3 years 5) rubber plantation for 5 years and 8 years in the rubber plantations, 6).
1) corn acreage 2) the area planted with maize, rubber, two years, three) rubber plantation 2 years 4) rubber plantation 3 years 5) rubber plantation 5 and 6 years old) plantation timber eight years.
1) area of maize 2) area of Maize with rubber 2 years 3) rubber planting area 2 years 4) พื้นที่ปลูก rubber 3 years 5) rubber planting area 5 years. 6) and rubber planting area 8 years.