Sugar production in Indonesia relies heavily on sugarcane harvests from Java. Data from the Central Agency on Statistics (BPS) shows national sugar production reached 2.46 million tons in 2024. This volume came from 520.82 thousand hectares of farmland.
East Java holds the largest share with 45.99 percent of the land area. Central Java follows with 10.74 percent.
Java's status as the primary sugar producer is not new. The modern layout of these fields follows a blueprint created two centuries ago. The Dutch East Indies colonial government designed the sugarcane agricultural landscape.
Cultuurstelsel, A Forced Cultivaltion System
The foundation of Java’s sugarcane network began in 1830. Dutch East Indies Governor-General Johannes van den Bosch established the Cultuurstelsel policy, widely known as the Forced Cultivation System.
The colonial administration in Batavia was bankrupt after spending massive funds on the Java War against Prince Diponegoro from 1825 to 1830. Colonial officials forced Javanese farmers to grow sugarcane as a mandatory export crop to rebuild Dutch wealth in European markets.
Colonial planners targeted existing village rice paddies to expand sugarcane rapidly. Farmers had to follow a mandatory rotation system called Gilir Golong. Village fields alternated periodically between rice crops and sugarcane plantations.
Growing sugarcane on flooded rice paddies required a specialized soil drainage system. To convert wet rice fields into well-drained sugarcane beds, the Javanese farmers had to dig deep drainage trenches and pile up high soil ridges to control water levels.
The heavy digging altered rural farmland in key hubs, including Kediri, Malang, and Madiun in East Java, as well as Pati and Sragen in Central Java.
Commercial sugarcane fields needed strict water management. Traditional village systems could not support large-scale plantations. The colonial government responded by engineering Java’s natural hydrology.
Civil engineers from the colonial public works department built major dams and canal networks along primary river basins starting in the 1850s.
Channels reshaped farmland along the Brantas River in Malang, Kediri, and Jombang. Waterways also extended through the Bengawan Solo basin in Sragen and Ngawi. Other routes reached coastal Pasuruan and the northern coast of Central Java in Kudus and Pati.
Expanding the irrigation networks increased sugarcane yields across Java. However, harvesting such large volumes created a critical logistical race against time.
Harvested sugarcane loses its sugar content rapidly. Plantation laborers must crush the stalks within 24 hours of cutting. Because raw cane could not travel long distances in time, processing factories were built right next to the fields.
The Peak Era of Sugar in Java
By 1925, Java’s sugar landscape reached its peak. The colonial administration and private firms operated nearly 200 active sugar mills across the island. Industrial centers spread rapidly from East Java all the way to West Java.
To connect these sites, the colonial government built narrow-gauge railway networks. Locals called these plantation trains lorries. The tracks ran through rural villages to transport harvested cane straight from the fields to processing mills. From the mills, the trains carried processed sugar onward to coastal ports for export.
The boom era of Javanese sugar did not last. The Great Depression hit the global economy in 1930, which caused international sugar prices to collapse.
Dozens of sugar mills went bankrupt. Total sugarcane land on the island dropped sharply to roughly 27 thousand hectares.
Physical destruction followed during World War II. Japanese military authorities occupied Java in 1942. The occupation government converted sugarcane fields into food crop land and stopped factory maintenance.
Conditions worsened during the Indonesian war of independence. Local forces burned down processing facilities in scorched-earth tactics to prevent enemy control.
Recovery proved difficult after independence. The Indonesian government nationalized remaining Dutch enterprises in the late 1950s. However, the state-run industry faced severe supply shortages and aging steam machinery.
The Indonesian government and private sector could not restore many older processing plants. As a result, the number of active sugar mills on the island fell to about 55 units by 1970.
The decline continued into the modern era. Today, only around 40 active sugar mills remain operational across Java.
Surviving mills and fields remain anchored in specific districts. Active areas match the exact locations where colonial irrigation and soil infrastructure were built, especially in East Java and Central Java
Reference:
Tegegn, D. A., & Dhont, F. (2023). The downhill journey of the Java sugar economy in the Netherlands Indies (Later Indonesia) from the late 19th century to the mid-20th century. Cogent Arts & Humanities, 10(1), Article 2220213. https://doi.org/10.1080/23311983.2023.2220213
