1、Reasons for the Low Utilization Rate of Phosphate Fertilizers in the

The resultant low use efficiency of current water-soluble P fertilizers creates significant environmental and human health problems. Current practices to increase P use efficiency have been inadequate to curtail these problems.

2、Global analysis of phosphorus fertilizer use efficiency in cereal crops

Due to limits in global phosphate rock reserves for fertilizer use, it is vital to increase phosphorus fertilizer use efficiency (PFUE) to maintain agricultural productivity and food security.

3、A dynamic optimization of soil phosphorus status approach

The results indicate that, compared to current practices, the DOP approach can achieve a 47.4% reduction in P fertilizer use without any yield penalty. The DOP approach could become an...

Mechanisms for improving phosphorus utilization efficiency in plants

Limitation of plant productivity by phosphorus (P) supply is widespread and will probably increase in the future. Relatively large amounts of P fertilizer are applied to sustain crop growth and development and to achieve high yields.

Exploring phosphorus fertilizers and fertilization strategies for

The resultant low use efficiency of current water-soluble P fertilizers creates significant environmental and human health problems. Current practices to increase P use efficiency have been inadequate to curtail these problems.

Phosphorus use efficiency and fertilizers: future opportunities for

Phosphate recovered in this way was used to complement phosphate-deficient plant growth medium, demonstrating its efficacy as a fertilizer and thereby promoting a circular and sustainable...

Phosphorus use efficiency has crossed the turning point of the

Here, we used two indicators, P use efficiency (PUE) and P surplus (Psur), to evaluate changes in P utilization in crop production on both national and regional scale in China during 2005–2018.

Why Does Overapplication of Phosphorus Fertilizers Occur

The findings reveal that annual phosphorus applications consistently exceed recommendations, which indicates overapplication, leading to economic inefficiency and environmental concerns.

Past, present, and future use of phosphorus in Chinese

Large inputs of phosphorus (P) in chemical fertilizers and feed supplements since 1978 have improved soil P status in arable land in China, but have also created challenges by increasing P concentrations in manure and exacerbating water quality degradation.

Excessive application of chemical fertilizer and organophosphorus

In this study, the minimum and maximum of average TP loss was appeared in Qinghai and Shandong province with the TP loss of 7.7 × 10 2 t and 7.5 × 10 3 t from 2012 to 2014, respectively.

The low utilization rate of phosphate fertilizers in the current season is primarily attributed to the following factors:

1. Soil Conditions: Factors such as soil pH, structure, and organic matter content significantly impact the dissolution and absorption of phosphate. In acidic soils, phosphorus binds with aluminum ions to form insoluble phosphate salts, reducing fertilizer efficacy. Additionally, soil compaction or looseness affects phosphorus mobility and dissolution, further limiting its availability to plants.

2. Improper Fertilization Practices: Excessive application leads to uneven phosphorus distribution in the soil, causing localized over-fertilization while other areas remain deficient. Timing is also critical; phosphate should be applied during early plant growth stages to promote root development. Late-season application may result in phosphorus loss through leaching or fixation.

3. Suboptimal Crop Selection: Different crops have varying phosphorus demands. Legumes (e.g., soybean, mung bean) require more phosphorus than grasses (e.g., wheat, maize). High-yield, pest-resistant crop varieties often utilize phosphorus more efficiently, enhancing fertilizer use efficiency.

4. Inappropriate Irrigation Methods: Excessive irrigation dilutes soil phosphorus concentrations, hindering absorption. Fertilizers containing nitrogen or potassium may compete with phosphorus for plant uptake, reducing its effectiveness. Phosphorus-specific fertilizers are recommended to avoid such competition.

5. Poor Pest and Disease Management: Root damage from pests or diseases reduces a plant’s ability to absorb phosphorus. Additionally, stressed plants undergoing infection or infestation exhibit reduced photosynthesis and respiration, further limiting nutrient uptake. Integrated pest management strategies minimize these risks.

6. Insufficient Agricultural Practices: Poor field management and inadequate soil amendments (e.g., liming or organic matter addition) restrict phosphorus availability. Adopting advanced agronomic techniques, such as precision farming or soil testing, is essential to optimize phosphorus use.

Improving phosphate fertilizer efficiency requires a multifaceted approach, including soil conditioning, rational fertilization, crop selection, scientific irrigation, pest control, and enhanced agricultural practices. Implementing these measures promotes sustainable agricultural development by maximizing resource utilization.