 Since the opening up of the <unk> – <unk> road in the 1970s , large @-@ scale plantations of oil palm and <unk> has been developed in rural areas of <unk> Division . Currently , there are 57 @,@ 740 hectares ( <unk> @.@ 4 km2 ( 223 sq mi ) ) of oil palm , 2 @,@ 000 hectares ( 200 km2 ( 77 sq mi ) ) of <unk> , and 815 hectares ( 8 @.@ 15 km2 ( 3 sq mi ) ) of <unk> plantations . 
