1、Nitrogen, phosphorus, calcium, and magnesium applied individually or as

Foliar N, P, Ca, and Mg concentration did not differ regardless of fertilizer treatment. Plants fertilized with CRF had a greater leaf K concentration than those fertilized with MAP, but foliar K concentration did not differ between fertilized and nonfertilized plants.

2、Effect of Different Types of Phosphate Fertilizer on Phosphorus

Through this study, we aimed to (1) characterize the soil physical and chemical properties; (2) investigate the soil P adsorption and desorption characteristics within different phosphate fertilizers treatments; and (3) analyze how the phosphate fertilizers treatments affect P adsorption–desorption behaviors based on soil physicochemical propert...

3、What are the differences between Calcium Phosphate Monobasic and

Calcium Phosphate Monobasic and Calcium Magnesium Phosphate Fertilizer are two commonly used phosphorus fertilizers by farmers, but they have different chemical compositions and physical properties.

4、Magnesium

Magnesium (Mg) deficiency can significantly limit crop yield and quality. Separate application of straight Mg fertilizer is unattractive because of additional labor costs. Meanwhile, bulk blending Mg with other macronutrient fertilizers is also a suboptimal solution because bulk blended fertilizers often yield poor nutrient distributions.

5、Interaction among Fertilizers (Compatibility)

When preparing fertilizer solutions for nutrigation , each component solubility must be considered in order to avoid possible precipitate . The following mixtures reduce solubility and form the following sedimentations.

A novel hierarchical structured calcium magnesium ammonium

In this work, a new slow-release fertilizer (SRF) of calcium magnesium ammonium polyphosphate (CMAPP) is constructed using unpurified wet-process phosphoric acid (WPA), discarded phosphorus tailings and urea.

Characteristics of fused calcium magnesium phosphate fertilizer (FCMP

MgO is more effective than CaO in terms of P-availability improvement. The presence of Fe and Al may have a negative effect on P-availability in the product.

GUIDANCE FOR COMPATIBILITY OF FERTILIZER BLENDING MATERIALS

Only solid blending components which are sources of primary (N, P and K) and/or secondary (e.g. Ca, Mg) nutrients are considered here. These blending components also include complex granular NPK/NP/NK fertilizers but fluid materials and micronutrients such as zinc and copper are not considered.

Combined Application of Calcium

This study indicated that maize could dissolve the insoluble P fertilizer, i.e., calcium-magnesium phosphate fertilizer, by secreting succinate and T-aconitate in a calcare-ous soil.

Nutrient Management :: Fertilizers

More than 80 per cent of the fertilizers used in this country are made up of nitrogenous fertilizers, particularly urea. It is extremely efficient in increasing the production of crops and the possibilities of its economic production are unlimited.

Calcium-magnesium phosphate fertilizer and urea fertilizer are two common chemical fertilizers that play important roles in agricultural production. Although both are used to provide essential nutrients for plant growth, their composition, functions, and application methods differ. Below is a detailed comparison of the differences between calcium-magnesium phosphate fertilizer and urea fertilizer:

I. Composition and Components

1. Calcium-Magnesium Phosphate Fertilizer

• Main Components: Primarily composed of calcium dihydrogen phosphate (Ca(H₂PO₄)₂), magnesium dihydrogen phosphate (Mg(H₂PO₄)₂), and calcium hydrogen phosphate (CaHPO₄), with calcium dihydrogen phosphate as the main ingredient.
• Primary Function: Provides phosphorus, which is critical for plant growth. It promotes root development, enhances stress resistance, and improves crop yield and quality.
• Suitable Crops: Widely applicable to grain crops, cash crops, etc. It supports root system development, strengthens disease resistance, and accelerates growth and productivity.

2. Urea Fertilizer

• Main Components: Composed of carbon, hydrogen, and nitrogen, with nitrogen accounting for approximately 56%.
• Primary Function: Supplies nitrogen, which is vital for plant growth. It stimulates leaf growth, boosts photosynthetic efficiency, and enhances crop yield and quality.
• Suitable Crops: Suitable for grain crops, cash crops, etc. It promotes leaf expansion, improves photosynthesis, and accelerates growth and productivity.

II. Functions and Effects

1. Calcium-Magnesium Phosphate Fertilizer

• Root Development: Stimulates root growth, enhances nutrient and water absorption efficiency.
• Stress Resistance: Improves disease resistance, reduces pesticide use, and protects the environment.
• Growth Promotion: Accelerates crop growth, increases yields, and boosts farmer income.

2. Urea Fertilizer

• Leaf Growth: Promotes leaf expansion, increases leaf area, and enhances photosynthesis.
• Quality Improvement: Enhances crop market value and farmer profitability.
• Yield Increase: Supports higher crop productivity to meet market demands and improve agricultural efficiency.

III. Application Methods and Precautions

1. Calcium-Magnesium Phosphate Fertilizer

• Application: Typically used as a base fertilizer or topdressing, adjusted according to crop stage and soil conditions.
• Precautions: Avoid overuse to prevent soil salinization or structural damage. Combine with other fertilizers for balanced nutrition.

2. Urea Fertilizer

• Application: Primarily used as topdressing, adjusted based on crop stage and soil conditions.
• Precautions: Avoid overapplication to prevent soil salinization or root burn. Use with other fertilizers for comprehensive nutrient supply.

While both calcium-magnesium phosphate and urea fertilizers are chemical products, they differ in composition, function, and application. For optimal results, select fertilizers based on crop needs and soil conditions. Proper usage and adherence to guidelines ensure healthy plant growth and bountiful harvests.