Abstract
The aim of this research is to minimize the effect of water shortage by arranging better planting-harvesting schedule so that plant growth stages fit water availability given by local climate. This research confirmed that regular schedule used by the selected case study plantation has been suffering from water shortage effect because of inappropriate planting and harvesting time. In order to improve the net sugar production by optimizing the planting schedule, three cases of scheduling were set up. One of them is to maximize the sugar production by using the conventional linear programming, and another one is to maximize the sugar production by using the fuzzy linear programming. The other one is to minimize cultivated area at maximum milling capacity of the factory by using the conventional linear programming. The resulted increase of net sugar productivity by optimized planting schedule was 16-21%.
