Fertilizer machine manufacturers can promote innovation and upgrading of NPK blending machine from multiple aspects, including technology research and development, supply chain collaboration, and adapting to market demands. Specific methods include:

1. Tackling Core Technologies and Enhancing Performance and Intelligence: On the one hand, focusing on optimizing key equipment performance, such as developing advanced processes like high-tower granulation or upgrading low-temperature, high-volume drying processes to reduce energy consumption and nutrient loss; on the other hand, embedding intelligent technologies, equipping high-precision batching instruments and intelligent control systems to improve raw material ratio accuracy, and deploying IoT sensors and 5G technology to achieve remote monitoring, fault warning, and full-process data traceability.

2. Deepening Diverse Cooperation and Streamlining the Innovation Chain: Establishing joint laboratories with universities and research institutions to develop specialized processes and equipment components for different raw material characteristics, shortening the new technology implementation cycle; simultaneously, collaborating with upstream and downstream enterprises and raw material suppliers to optimize equipment adaptability to different raw materials.

3. Adapting to Market Demand and Optimizing Product Design: Adopting modular design to facilitate rapid equipment assembly, debugging, and functional expansion, meeting the needs of manufacturers with different production capacity scales.

4. Improve the support system to facilitate the implementation of innovation: Increase investment in research and development funds, not only to introduce advanced foreign technologies for digestion, absorption and re-innovation, but also to encourage internal employees to participate in technological innovation; at the same time, improve the talent training mechanism, carry out training in intelligent equipment operation and maintenance, improve employees' technical capabilities, and establish a regular equipment maintenance system to extend equipment life through standardized processes and ensure the stable operation of innovative equipment.