1、Foliar Feeding of Calcium

Fertilizer grade calcium nitrate (Ca(NO3)2) or liquid calcium preparations used for foliar feeding and vegetable crops frequently burn bracts. You should use refined grades of calcium chloride known as “laboratory” or “reagent” grade.

2、What is the concentration of Calcium Nitrate for foliar spraying?

In general, a good starting point for most plants is a concentration of 1 - 2% calcium nitrate solution for foliar spraying. This means dissolving 10 - 20 grams of calcium nitrate in 1 liter of water. For more sensitive plants, a 0.5 - 1% solution (5 - 10 grams per liter) is a safer bet.

3、Effects of Foliar Fertilization: a Review of Current Status and Future

Chelated foliar fertilizers are effective for improving element utilization efficiency, crop yield, and quality. The physicochemical properties, molecular structure, chelating strength, and chelating rate of chelating agents modulate the effects of application of nutrients.

4、Calcium Foliar Spray

Foliar feeding with calcium may make the difference between a bumper crop of fruit/veggies to blossom end rot or bitter produce. Learn more about making and using a calcium foliar spray in this article.

5、How To Apply Calcium Ammonium Nitrate Fertilizer

For quick correction of calcium and nitrogen deficiencies, it’s advisable to use calcium ammonium nitrate (CAN) directly on the leaves rather than waiting for soil application, which may take longer to show results. This guide details best practices for utilizing calcium nitrate effectively.

Boron calcium foliar fertilizer

For foliar fertilizers with low plant demand but important elements such as boron, calcium, molybdenum, and selenium, they can be used throughout the entire growth period of plants, preferably 4-6 times from germination or flowering to fruit harvesting.

Silicon Calcium Fertilizer Application and Foliar Spraying with

The strongest effects were for the lime and SC treatments. Foliar spraying with Si can effectively decrease Cd translocation through stems and leaves to brown rice. Applying SC fertilizer and foliar spraying with Si is the best method for decreasing the Cd content of rice grown in mildly Cd-polluted paddy fields.

Effect of Calcium Foliar Spray Technique on Mechanical Properties of

Abstract The calcium fertilization of strawberry plants (Fragaria × ananassa Duchesne) was evaluated using two types of nozzles, with two liquid pressure levels and two driving speeds. The calcium content of the leaves and fruit were analyzed via flame photometry.

Foliar fertilizer spraying technology and issues that need attention

Since foliar fertilizers are directly prepared into solutions for spraying, foliar fertilizers must be soluble in water. Otherwise, the insoluble substances in the foliar fertilizers will not only be absorbed after being sprayed on the surface of crops, but sometimes even cause damage to the leaves.

Guide to Foliar Fertilization: Best Practices, Dosages, and Benefits

Compared to traditional soil fertilization, foliar feeding offers faster absorption, higher nutrient use efficiency, and more targeted results.

Which Type of Calcium Fertilizer is Better for Foliar Spraying? Foliar spraying of calcium fertilizer is a common nutritional supplementation method in modern agriculture. It allows plants to directly absorb calcium through leaves, rapidly replenishing this essential element. This practice helps enhance plant disease resistance and promote growth and development. Selecting the appropriate type of calcium fertilizer is critical to optimizing foliar spray effectiveness. Below are recommendations and analyses for foliar calcium application:

I. Types of Calcium Fertilizers for Foliar Spraying

1. Water-Soluble Calcium Fertilizers

• Characteristics: Easily absorbed by plants, dissolves quickly in water, and minimizes leaf damage.
• Applications: Suitable for all plant types, especially calcium-demanding crops like fruits, vegetables, and ornamentals.
• Usage: Dilute according to instructions, then apply evenly to leaf surfaces.

2. Solid Calcium Fertilizers

• Characteristics: Available in granular or powdered forms, requiring dissolution in water before use.
• Applications: Ideal for soils lacking calcium or when direct spraying is impractical.
• Usage: Dissolve in water before spraying leaves thoroughly.

3. Chelated Calcium Fertilizers

• Characteristics: Contains chelated micronutrients, improving calcium absorption efficiency while addressing micronutrient deficiencies.
• Applications: Best for plants in micronutrient-poor soils or crops needing both calcium and trace elements.
• Usage: Mix with water to ensure even distribution, then spray on leaves.

II. Effects of Foliar Calcium Application

1. Enhancing Disease Resistance

• Mechanism: Calcium stabilizes cell structures and activates enzymes critical for plant defense.
• Outcome: Reduces susceptibility to diseases and inhibits pathogen spread.

2. Promoting Growth

• Mechanism: Calcium supports photosynthesis and respiration, vital for metabolic processes.
• Outcome: Accelerates growth rates and improves overall plant vigor.

3. Improving Quality

• Mechanism: Stimulates protein synthesis and nutrient uptake.
• Outcome: Enhances taste, color, and shelf life of fruits, vegetables, and other crops.

III. Key Considerations

1. Selecting the Right Formula

• Plant-Specific Needs: Match calcium types to crop requirements (e.g., high-demand vs. low-demand plants).
• Environmental Factors: Account for soil pH, humidity, and climate to optimize efficacy.

2. Proper Application

• Follow Instructions: Adhere to dosage and frequency guidelines on product labels.
• Safety Precautions: Wear protective gear and avoid ingestion or skin contact.

3. Consistent Timing

• Regular Application: Spray every 2 weeks to maintain calcium supply.
• Monitor Plant Response: Adjust protocols if signs of deficiency or excess appear.

foliar calcium spraying is an effective tool for boosting plant health, but success depends on selecting the right product and applying it correctly. By following these guidelines, growers can maximize yields, improve crop quality, and strengthen plants’ resilience to stress.