1、Optimizing phosphate application to improve soil quality and reduce

How to determine the optimal dosage of phosphorus (P) fertilizer input for an agricultural field is important to maintain soil quality and crop production while minimizing environmental impact.

2、A dynamic optimization of soil phosphorus status approach could reduce

Here, we propose a dynamic optimization of soil P status (DOP) approach aimed at managing long-term soil P status within the range of agronomic and environmental soil P thresholds, which...

3、Enhanced phosphorus

In recent years, an increasing number of studies have explored methods to reduce P-fertilizer consumption and improve P-use efficiency through developing novel fertilizers, microbiome inoculations, and breeding desirable genotypes and cropping systems (Cong et al. 2020).

4、Mechanisms for improving phosphorus utilization efficiency in plants

Relatively large amounts of P fertilizer are applied to sustain crop growth and development and to achieve high yields. However, with increasing P application, plant P efficiency generally declines, which results in greater losses of P to the environment with detrimental consequences for ecosystems.

5、Response of Soil Microbial Community Structure to Phosphate Fertilizer

Application of P fertilizer can increase the content of soil available P, promote the release of P in soil microorganisms, and provide available P for crop absorption and utilization.

Management Strategies to Optimize Soil Phosphorus Utilization and

Soil P management strategies in China aim to optimize P input, improve crop P use eficiency, and ultimately alleviate soil P loss.

Reducing Phosphorus Fertilizer Application in the Typical Pomelo

Our findings provide a mechanistic understanding of enhanced carotenoid and vitamin C biosynthesis and accumulation in pomelo fruits with reducing P fertilizers. They also step forward in the nutrient management programs to obtain better fruit quality with less environmental risks.

Phosphorus management strategies to enhance P

Continued long-term application of P fertilizers and organic wastes and manures can lead to accumulation of P in surface horizons due to the low crop use efficiency (<25%) in the year of application.

Optimizing phosphorus fertilizer use to enhance water quality, food

We developed a multi-objective framework for optimizing P fertilizer use that considered water quality, food security and social equality. Different optimal objectives yield contrasting results for the geographical distribution of P fertilizer use, crop calorie production and social equality.

Management Strategies to Optimize Soil Phosphorus Utilization and

Given these problems, as well as the finite nature of P reserves, three strategies are proposed here to reduce P fertilizer application rates, improve P use efficiency, and minimize the environmental risk caused by P loss in China: (i) improving soil legacy P utilization by modifying cropping systems, rhizosphere management, or microbial ...

Phosphate fertilizer, as an indispensable input in agricultural production, plays a critical role in improving crop yields, enhancing soil structure, and boosting crop resistance to diseases. excessive application of phosphate fertilizer not only leads to resource wastage but may also cause environmental issues such as soil acidification and water eutrophication. exploring measures to reduce phosphate fertilizer use while improving its efficiency is particularly important. The following recommendations are proposed:

1. Precision Fertilization: By conducting soil tests and field surveys, understand the phosphorus requirements of different crops and formulate scientific fertilization plans. For example, increase phosphate fertilizer dosage for high-yield crops like wheat and maize, while reducing it for low-yield crops such as legumes and tubers. Additionally, adopt water-saving irrigation techniques like drip or sprinkler irrigation to minimize nutrient loss, especially phosphate.

2. Organic Fertilizer Substitution: Encourage farmers to replace part of the phosphate fertilizer with organic materials such as livestock manure, biogas residue, and digestate. Organic fertilizers contain phosphorus elements that can nourish crops while improving soil structure and fertility.

3. Coupling Biological Nitrogen Fixation with Phosphate-Solubilizing Microbes: Plant leguminous crops or apply phosphate-microbe coupling agents to promote the activity of nitrogen-fixing microorganisms in the soil, thereby increasing nitrogen content. This reduces reliance on phosphate fertilizers while meeting crop nitrogen demands.

4. Deep Soil Loosening: Use deep tillage to break up compacted soil layers, increase porosity, and enhance soil aeration and water permeability. This helps roots absorb phosphorus more efficiently.

5. Rational Crop Rotation and Intercropping: Adjust cropping patterns through rotation and intercropping to avoid soil nutrient imbalances caused by monoculture. Rotation reduces pests and diseases, while intercropping maximizes land use and increases per-unit yield.

6. Soil Amendment Use: Add soil conditioners such as lime or gypsum to regulate soil pH and improve phosphorus availability. These amendments also enhance soil structure and water/nutrient retention.

7. Precision Pesticide Application: Choose low-toxicity or non-toxic pesticides, control dosage and timing to minimize negative impacts on soil and crops, thereby reducing phosphorus loss.

8. Agricultural Waste Recycling: Convert agricultural waste (e.g., straw, manure) into organic fertilizers via composting. This reduces pollution and provides a sustainable phosphorus source for crops.

9. Smart Monitoring and Early Warning Systems: Install soil nutrient monitoring devices to track phosphorus levels in real time. Address overapplication promptly to ensure sustainable agriculture.

10. Policy Support and Education: Governments should strengthen publicity on phosphate reduction policies, raise farmers’ environmental awareness and technological literacy. Encourage research institutions and enterprises to develop and promote efficient phosphate reduction technologies.

reducing and enhancing phosphate fertilizer efficiency is a systematic endeavor requiring comprehensive measures. By combining precision fertilization, organic substitution, biological nitrogen fixation, and other strategies, crops’ phosphorus needs can be met while minimizing environmental harm. Concurrently, policy support, education, and technology dissemination must be advanced to drive sustained progress in phosphate fertilizer reduction.