The way to reduce waste in the automatic control of NPK fertilizer produciton line is mainly reflected in the following aspects:

1. Precise dosing and real-time monitoring: The automatic control system can accurately control the ratio of nitrogen, phosphorus, potassium and other raw materials through sensors and data analysis to ensure that the nutrient content of each batch of fertilizer is consistent and reduce waste caused by inaccurate dosing.

2. Optimize the production process: Automated production lines can optimize the production process and reduce the waiting time and unnecessary links in the production process.

3. Intelligent quality control: The automated production line has the ability of real-time monitoring and data analysis, and can collect production data in real time and conduct in-depth analysis. These data include production speed, organic fertilizer equipment status, product quality and other aspects, which can provide complete production information for enterprises. Through real-time monitoring and adjustment, enterprises can find and solve problems in time to ensure the stability and efficiency of the production process.

4. Reduce energy consumption: Automated production lines reduce unnecessary waste by precisely controlling energy consumption in the production process.

5. Reduce waste generation: Automated production lines can reduce waste generation, further reduce production costs and improve resource utilization by recycling and reusing waste materials. This resource saving and recycling measure reduces the waste of resources and environmental pollution caused by improper waste disposal.

Through these measures, automated control in the NPK fertilizer production line significantly reduces waste, improves production efficiency and resource utilization, while reducing production costs and environmental impact.