1、Fertilization effects on microbial community composition and aggregate

NPKC1 and NPKC2 fertilization increased microbial diversity and enriched the microbial community towards taxa responsible for aggregate stability (e.g., Actinobacteria and Ascomycota). RDA revealed that dissolved organic carbon content was the main factor affecting microbial community composition.

2、Applying bio

Numerous studies have demonstrated that bio-organic fertilizers can significantly improve the physical and chemical properties of saline-alkali soils, enhance soil fertility, and increase...

3、A review of saline

More recent efforts have enabled China to develop extensive theoretical knowledge and management practices, culminating in a “Chinese solution” for saline-alkali land management. This review provides an overview of the occurrence, evolution, and challenges of saline-alkali soils in China.

Progress and Prospect of Saline

As a potential soil conditioner, wood vinegar can adjust soil pH, increase root activity, and promote seed germination and root growth, showing its potential in improving saline-alkaline soil.

(PDF) Effect of NPK fertilizer and soil amendments of soybean

This study aims to obtain effective doses of NPK fertilizers and soil amendments for soybean cultivation in saline soils.

Organic Fertilization Improves the Availability and

Therefore, organic fertilizer application could increase soil P availability and retention capacity, and lower organic fertilizer addition (NPKC1) was better to improve soil P availability and retention capacity in saline-alkaline soils.

Applying bio

Bio-organic fertilizers have demonstrated significant potential in enhancing saline-alkali soil properties, boosting crop yield, and reducing chemical fertilizer dependency.

Organic fertilizer enhances rice growth in severe saline–alkali soil by

In the present study, organic fertilizer application (composted poultry manure) was evaluated as a potential strategy for remediating saline–alkali soil and promoting rice growth.

A on the Improvement of Saline alkali Soil by Fertilizer

iers on severe saline soil in Hetao Irrigation District. It was found that organic fertilizer treatment combined with straw deep burial and gypsum improvement of severe saline soil significantly reduced the salinity, pH and Na+ content of 0~15 cm soil layer, improv

The coupling of straw, manure and chemical fertilizer improved soil

Combined use of straw, manure, and fertilizers achieves soil reclamation and higher yield. Organic amendments are fundamental strategies for the sustainable reclamation of saline-alkaline soils.

Saline-alkaline soils refer to land with high salt content, poor drainage, and harsh conditions that hinder or kill plant growth. When using NPK compound fertilizers in such soils, special attention must be paid to soil improvement, fertilizer efficiency, and preventing secondary salinization. The following recommendations outline best practices for selecting and applying NPK fertilizers in saline-alkaline environments:

1. Choose Suitable NPK Compound Fertilizers

Select fertilizers containing nitrogen (N), phosphorus (P), and potassium (K) with balanced pH regulation. These fertilizers improve soil physical and chemical properties, increase organic matter, and reduce salt accumulation. Common types include:

• Nitrogen-Based Compound Fertilizers: High in nitrogen, they promote rapid plant growth but require careful dosage to avoid excess salt buildup.
• Phosphate-Containing Compound Fertilizers: Enhance nitrogen utilization, stimulate root development, and boost plant adaptability to saline-alkaline conditions.
• Potassium Chloride-Based Compound Fertilizers: Improve plant stress resistance, reduce water loss, and optimize soil structure while lowering salt levels.

2. Application Techniques

• Uniform Distribution: Spread fertilizers evenly to prevent localized salt accumulation.
• Deep Placement: Apply fertilizers at deeper soil layers to minimize surface salt damage to plants.
• Stratified Application: Adjust nutrient distribution across soil layers based on crop needs and soil conditions.
• Irrigation Integration: Combine fertilization with irrigation to maximize water use and fertilizer absorption, especially during dry periods.

3. Monitoring and Adjustment

• Regular Soil Testing: Analyze soil salinity, pH, and nutrient levels to refine fertilization plans.
• Dose Calibration: Adjust fertilizer amounts based on soil test results and crop performance to avoid overapplication.
• Holistic Management: Complement fertilizer use with practices like deep tillage and organic amendments to comprehensively improve soil health.

4. Key Considerations

• Avoid Single-Fertilizer Bias: Mix fertilizer types to prevent nutrient imbalances and support plant growth.
• Environmental Protection: Prevent fertilizer runoff to avoid water pollution.
• Scientific Fertilization: Follow evidence-based principles to avoid waste and environmental harm.

effective use of NPK fertilizers in saline-alkaline soils requires balancing soil conditions, crop requirements, and ecological sustainability. By selecting appropriate fertilizers, optimizing application methods, and integrating monitoring, farmers can enhance fertilizer efficiency while fostering long-term soil resilience.