1、Performance of phosphogypsum and calcium magnesium phosphate fertilizer

Calcium magnesium phosphate fertilizer and phosphogypsum obtained from a local fertilizer company were used as phosphorus additives for nitrogen conservation during composting.

2、Combined Application of Calcium

Combined application of inorganic phosphorus with calcium-magnesium phosphate fertilizer increased the utilization rate of calcium-magnesium phosphate fertilizer.

3、钙镁磷肥（矿物质元素）_百度百科

钙镁磷肥又称熔融含镁磷肥fused calcium-magnesium phosphate (fertilizer) ，是一种含有磷酸根（PO43-）的硅铝酸盐玻璃体。 主要成分包括Ca3（PO4）2、CaSiO3、MgSiO3。

Optimizing Potassium Fertilization Combined with Calcium–Magnesium

Alkaline fertilizers demonstrate significant potential in mitigating rice cadmium (Cd) accumulation, yet the combined effects of calcium–magnesium phosphate (CMP) with potassium (K) fertilizer types and split application strategies remain unclear.

Combined Application of Calcium

This study aimed at revealing the mechanism of calcium-magnesium phosphate fertilizer (CMP) mobilization the mechanism of starter phosphorus (P) addition on affecting CMP utilization in maize rhizosphere in a calcareous soil.Different starter P in the form of KH 2 PO 4 (0, 8 and 15 mg P kg −1 soil) and CMP (0, 100 and 500 mg P kg ...

Magnesium

One of the barriers hindering the production of Mg-fortified phosphorus (P) fertilizers is the assumption that precipitation of P with Mg will reduce P solubility.

Effect of Combined Application of Calcium Magnesium Phosphate

Conclusion In conclusion, calcium-magnesium-phosphate fertilizer with lime significantly reduced the risk of Cd contamination in rice grain, which increased the bioavailable Si, Ca and Mg while increasing soil pH and reducing the available Cd, thus inhibiting the Cd accumulation in rice.

Combined Application of Calcium

This study indicated that succinate and T-aconitate secreted by maize promoted the mobilization and utilization of CMP and the combined application of CMP with starter P enhanced CMP fertilizer utilization in a calcareous soil.

Preparation of Multifunctional Fused Magnesium Phosphate Fertilizer

These inferior ores with high silicon and magnesium contents are favorable raw materials to produce fused magnesium phosphate fertilizer (FMP) for the crop growth. However, high temperature of Ca3(PO4)2–SiO2–MgO system for the smelting of phosphorite resulted in the energy-extensive consumption.

Combined Application of Calcium

Combined application of inorganic phosphorus with calcium-magnesium phosphate fertilizer increased the utilization rate of calcium-magnesium phos-phate fertilizer.

Calcium-magnesium phosphate fertilizer (CMPF) is a critical type of phosphate fertilizer composed of phosphate salts combined with calcium and magnesium oxides. It is widely used in agriculture due to its advantages:

1. High Phosphorus Content: CMPF contains a significant amount of phosphorus, effectively meeting the phosphorus requirements of crops and promoting growth.

2. Good Solubility: Phosphate ions in CMPF react with calcium and magnesium ions in soil to form soluble phosphate salts, which are easily absorbed by plants.

3. Soil Fertility Improvement: Calcium and magnesium in CMPF enhance soil structure, increase water and nutrient retention capacity, and boost overall soil fertility.

4. Enhanced Nutrient Absorption: Phosphorus in CMPF forms complexes with other nutrients (e.g., nitrogen, potassium), improving their utilization efficiency and aiding crop absorption.

5. Environmental Protection: Microbial activity converts phosphorus in CMPF into organic forms, reducing environmental pollution.

6. Cost Efficiency: CMPF is relatively inexpensive, lowering agricultural production costs.

7. Yield and Quality Improvement: CMPF significantly increases crop yields and quality, particularly in dry or infertile soils.

Why Can CMPF Be Used as a Phosphorus Fertilizer?

1. Synergistic Effects: Phosphorus in CMPF combines with soil nutrients to form complexes, enhancing nutrient utilization and amplifying its fertilizer effects.

2. Soil Amelioration: CMPF improves soil structure, water retention, and fertility, creating optimal conditions for crop growth.

3. Microbial Activity Stimulation: Phosphorus serves as a substrate for soil microorganisms, increasing biological activity and soil health.

4. High Fertilizer Efficiency: Phosphorus in CMPF is readily absorbed by plants, maximizing fertilizer use efficiency.

5. Pollution Reduction: Microbial conversion of phosphorus into organic compounds minimizes environmental risks.

6. Economic Benefits: Lower costs make CMPF a cost-effective choice for farmers.

7. Crop Performance: CMPF boosts yields and quality, especially under challenging soil conditions like drought or poor fertility.

Calcium-magnesium phosphate fertilizer is a high-quality phosphate fertilizer characterized by high phosphorus content, good solubility, soil improvement, and efficient nutrient synergy. Its versatility, cost-effectiveness, and environmental benefits explain why it is widely used as a phosphorus fertilizer in agricultural practices.