Chen Xiaohua: Development of Slow Controlled Release Fertilizers

Chen Xiaohua: Development of Slow Controlled Release Fertilizers During this year's agricultural conference, Vice Minister of Agriculture Chen Xiaohua emphasized that modern agricultural production models are essential for delivering high-quality, safe, and abundant agricultural products. These models are also driving the need for new chemical products such as fertilizers, pesticides, and agricultural plastics, creating fresh opportunities for innovation in the industry. According to the author, one of the key factors in advancing modern agriculture is improving the efficiency of chemical fertilizer use, increasing the proportion of high-concentration fertilizers, and enhancing the compounding ratio—making slow-release and controlled-release fertilizers a crucial focus for future development. Currently, the fertilizer industry is moving toward more efficient nutrient delivery, higher concentration of nutrients, greater element diversity, better compounding, and improved balance. This shift presents both opportunities and challenges for China’s fertilizer sector, as it looks to upgrade its technology, expand its product range, and promote the adoption of advanced fertilizer types. Companies must adapt quickly to stay competitive and meet evolving demands. The leadership of major chemical fertilizer companies plays a vital role in this transformation. They must align with national agricultural policies, support the development of high-end fertilizers, and integrate these goals into their long-term strategic planning. For example, China National Offshore Oil Corporation (CNOOC), which entered the downstream oil and gas industry in 2000, has established one of China's largest urea plants, producing 800,000 tons annually. Recognizing the importance of the fertilizer sector, CNOOC’s leaders have prioritized its development, setting up specialized agrochemical service units including research centers, testing sites, and field teams. Their commitment is evident through annual reviews and direct supervision of activities like soil testing, fertilizer research, and market expansion. To address the low utilization rates of chemical fertilizers in China—where nitrogen efficiency is only 30%, phosphorus at 20%, and potassium at 40%—the industry must overcome technical barriers and invest in high-end solutions. The inefficiency leads to resource waste, higher costs, and environmental degradation. Slow and controlled-release fertilizers offer a globally recognized solution to improve efficiency and reduce environmental impact. In December last year, China Chemical successfully launched a 5,000-ton pilot plant in Hainan, using innovative solvent-free coating technology that minimizes pollution while achieving effective controlled release. This advancement marks a significant step toward sustainable and eco-friendly fertilizer production.

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