1、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 （PO4 3-）的硅 铝酸盐玻璃 体，无明确的分子式与分子量。

2、calcium magnesium phosphate (CMP)_化工百科

中文名:钙镁磷肥,英文名:calcium magnesium phosphate (CMP),CAS:,MSDS.钙镁磷肥也被称为磷酸钙镁肥料，是一种重要的多元复合肥料。它主要由磷酸盐、碳酸盐和硫酸镁等成分组成。 钙镁磷肥在农业中的主要用途是提供作物所需的营养元素，如钙、磷和镁。钙是植物生长必需的元素，可以促进植物的细胞壁形成 ...

3、How to Effectively Apply Calcium

Calcium magnesium phosphate fertilizer can be used as base fertilizer, topdressing and seed fertilizer, but it is most suitable for base fertilizer. 750-1125kg per hectare as combined fertilizer for spreading on arable land; topdressing fertilizer should be applied to the rhizosphere of the crop, the sooner the better; seed ...

4、以钙镁磷肥产品创新促进产业发展

Fused calcium magnesium phosphate (FMP) is an alkaline mineral fertilizer riched in P, Ca, Mg, Si and other nutrients. It can supply trace elements needed by plants, relieve acidic soil, effectively reduce heavy metal pollution and improve crop nutrition and quality. FMP has been considered as a low-content phosphate fertilizer for a long time.

5、Calcium magnesium phosphate

Calcium magnesium phosphate | CaMgO4P+ | CID 168400 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological ...

Application method and precautions of calcium magnesium phosphate

Calcium magnesium phosphate fertilizer is insoluble in water, non-toxic, non-corrosive, not easy to absorb moisture, difficult to agglomerate, chemical alkaline fertilizer. It is widely applied to all kinds of crops and phosphorus-deficient acidic soils, and it is especially suitable for acid red soils with severe calcium and magnesium leaching in the south. The specific use is as follows:

Precautions in the use of calcium, magnesium and phosphate fertilizers

In summary, calcium magnesium phosphate fertilizer is a versatile and environmentally friendly option that supports long-term soil fertility and crop growth, especially in acidic and phosphorus-deficient conditions.

Notes on the use of calcium magnesium phosphate fertilizer

Usually, when applying 35-40 kilograms of calcium magnesium phosphate fertilizer per mu, it can be applied every other year. (4) Calcium magnesium phosphate fertilizer is suitable for crops with strong absorption capacity of soluble phosphorus in goji, such as rapeseed, radish, leguminous green manure, leguminous crops, and melons.

钙镁磷肥

钙镁磷肥是用磷矿与硅酸镁矿物配制的原料，在电炉、高炉或平炉中于1350~ 1500 C熔融,熔体用水骤冷,形成粒度小于2 mm的玻璃质物料,经干燥磨细后成为产品。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（PO4 3-）的硅铝酸盐玻璃体。主要成分包括Ca3（PO4)2、CaSiO3 ...

Use characteristics and production equipment of calcium magnesium

3. The amount of calcium magnesium phosphate fertilizer should be appropriate, generally the amount of fertilizer per mu should be controlled between 15 and 25 kg. Excessive application of FCMP will not increase the fertilizer efficiency, but also lead to the problem of diminishing returns. Generally, when 35-40kg FCMP is applied per mu, it can be applied every other year.

Calcium-magnesium phosphate fertilizer is a commonly used nutrient source that contains calcium, magnesium, and phosphorus. For chestnut trees, proper fertilization promotes growth and fruit development.

First, it is essential to understand the growth cycle of chestnut trees. Generally, it takes several years for a chestnut tree to bear fruit, during which multiple fertilizations are required. In the early stages of growth, the tree primarily focuses on vegetative development, requiring significant amounts of nitrogen fertilizer to support rapid growth. As the tree matures and enters the fruiting stage, phosphorus becomes critical for promoting fruit formation. Additionally, calcium is indispensable as it enhances disease resistance and improves fruit quality.

The dosage of calcium-magnesium phosphate fertilizer depends on the tree’s specific needs and soil fertility. On average, each chestnut tree requires approximately 2-3 kilograms (2000-3000 grams) of calcium, magnesium, and phosphorus annually. This amount can be adjusted based on soil tests: reduce phosphorus if soil phosphorus levels are high, or increase it if deficient.

Key Considerations for Application:

1. Timing: Apply in spring and autumn, crucial periods for growth. Fertilizing during these seasons optimizes nutrient absorption.
2. Methods:
   • Broadcasting: Evenly spread fertilizer under the canopy, then irrigate.
   • Hole application: Bury fertilizer in holes near the tree.
   • Furrow application: Apply along trenches around the trunk, followed by watering.
3. Dosage adjustment:
   • Early growth: Prioritize phosphorus.
   • Fruiting stage: Increase calcium to improve fruit quality.
4. Integration with organic matter: Mix calcium-magnesium phosphate fertilizer with organic fertilizers to boost efficiency. Avoid direct root contact to prevent burning.
5. Frequency:
   • Early growth: 2-3 applications per year.
   • Fruiting stage: 3-4 applications per year.

Calcium-magnesium phosphate fertilizer is vital for chestnut tree health and productivity. Rational fertilization practices enhance yields, fruit quality, and agricultural income.

Note: The original text uses "kilograms" for annual requirements, while the title asks about "grams." The translation retains both units for clarity (e.g., 2-3 kg = 2000-3000 grams). practical applications typically use kilograms for such dosages.