[Korean Farmers' News Agency, Reporter Kim Young-min] As the kimchi radish and napa cabbage planting season returns, it is an important time to provide stable nutrients from the initial growth stage. For this, Jo-bi is suggesting three types of basal fertilizers as the first step for high-quality kimchi radish and napa cabbage harvest. "Ttangjoa" is a slow-release fertilizer containing nitrate nitrogen, lime, sulfur, and the nitrification inhibitor DCD. Nitrate nitrogen is quickly absorbed by the crops in a form that is immediately usable, greatly aiding the initial growth of the crops. The nitrification inhibitor DCD helps sustain the effectiveness of the fertilizer for a longer period, while the inclusion of slow-release calcium and sulfur aids in improving disease resistance, crop vitality, and quality.