Abstract: Cultivating cauliflower in Central Kalimantans peatlands requires proper nutrient management. This is because cauliflower is very sensitive to soil and environmental variations, which can affect the growth and mass yield of flowers. Peat soil problems, both physical, chemical and biological, need specific handling, including high soil acidity, poor nutrients, high cation exchange capacity (CEC), with low base saturation, soil pH is generally below 4.5 while cauliflower is a plant that is sensitive to high acidity.