The trend of Phosphorus chemical fertilizer

The development trend of phosphorus chemical fertilizer is focusing on the efficient use of resources, environmental sustainability and technological innovation. The following are the main development directions:

1. Efficient utilization and recovery of phosphorus resources

-Upgrading of phosphate ore develop technology: developing efficient flotation technology for low-grade phosphate ores (such as colloidal phosphate ores) to improve resource utilization.

-Phosphorus recovery technology: phosphorus can be recovered from sewage, livestock and poultry manure and industrial wastewater (such as bird dung stone precipitation method and adsorption method) to realize circular economy.

-Phosphate fertilizer enhancer: Add chelating agent or microorganism (such as phosphorus degrading bacteria) to promote the activation of fixed phosphate in soil and reduce the amount of application.

2. Environment-friendly phosphate fertilizer products

-Low heavy metal phosphate fertilizer: reduce the content of cadmium, lead and other heavy metals in phosphate fertilizer through purification process (such as wet phosphoric acid deep cadmium removal technology).

-Slow-release phosphate fertilizer: coated or polymerized phosphate fertilizer (such as ammonium polyphosphate) to reduce the fixation and loss of phosphorus and improve utilization.

-Optimization of water-soluble phosphate fertilizer: develop high-efficiency water-soluble fertilizers such as polyphosphate and potassium dihydrogen phosphate to adapt drip irrigation/leaf fertilization.

3. New phosphate fertilizer technology

-Ammonium polyphosphate (APP): with high phosphorus content and slow release characteristics, suitable for compound fertilizer formulation, can also be used as a flame retardant crossover application.

-Nano phosphate fertilizer: nano-scale phosphate particles enhance crop absorption efficiency and reduce soil fixation.

-Biological stimulant combination: humic acid, alginate and other additives are added to the phosphate fertilizer to improve the resistance of crops and phosphorus uptake.

4. Phosphorus-organic-microorganism synergy

-Organophosphorus compound fertilizer: combine phosphorus fertilizer with organic matter (such as humic acid, compost) to improve the mobility of phosphorus in soil.

-Microbial phosphate fertilizer: use phosphorus-degrading bacteria (such as bacillus and Pseudomonas) to decompose insoluble phosphorus in soil, reducing the dependence on chemical phosphate fertilizer.

5. Precision fertilization and digital management

-Dynamic monitoring of soil phosphorus: predict crop phosphorus demand through sensors and AI models to achieve variable fertilization.

-Phosphate fertilizer recommendation system: combine crop variety, soil type and climate data to customize phosphate fertilizer application plan.

6. Sustainable production and policy drive

-Green production process: reduce the by-product phosphogypsum in wet-process phosphate production (such as semi-water-di-water process optimization), and promote the comprehensive utilization of phosphogypsum (building materials, soil improver).

-Policy restrictions: The European Union and other regions set limits on the cadmium content in phosphate fertilizer (e.g., ≤ 60mg/kg P2O5), forcing cleaner production.

-Strategic reserves of phosphorus resources: some countries list phosphate ore as a strategic resource and restrict its export (such as China, Morocco).

7. Challenges and future directions

-Risk of resource depletion: Global reserves of high-grade phosphate ore are limited, and the development of alternative technologies (such as phosphorus recovery) needs to be accelerated.

-Environmental pressure: phosphorus loss leads to eutrophication of water bodies, so low-loss fertilization technology should be developed.

-Economic balance: the cost of environmentally friendly phosphate fertilizer is high, so it needs to reduce the cost through large-scale production.

Future expectations

The phosphate fertilizer industry will be transformed into "high efficiency, circular and low carbon", including:

-Closed-loop cycle: from "mining-use-waste" to "recycling-regeneration-utilization" mode.

-Cross-border integration: phosphorus fertilizer combined with new energy (such as lithium waste recovery phosphorus) and biotechnology.

-Global collaboration: Establish international standards for phosphorus resource management to ensure food security and ecological balance.