1、Influence of the application of irrigated water

Several studies have shown that calcium fertilizer application increases the yield of cherries, pears, and mangoes and reduce titratable acid content, thereby increasing soluble sugar and vitamin C contents [17, 20 – 21].

2、Optimal Frequency of Calcium Fertilizer Application for Grapes

Promote Scientific Fertilization: Use targeted methods like drip irrigation or foliar spraying to deliver calcium directly to plants, maximizing efficiency. Optimize Formulations: Develop eco-friendly, high-efficiency calcium products tailored to regional and varietal needs.

3、Optimizing grape growth, berry quality and phenolic compounds with

Iron (Fe) and calcium (Ca) are pivotal elements influencing grape growth and wine quality. However, the combined effects of these fertilizers on grape physiology and berry quality remain elusive.

Influence of the application of irrigated water

Abstract The eastern foot of Helan mountain is a famous production area of high-end wine grapes in China. Excessive application of NPK fertilizer induced deficiency in trace elements, such as calcium, and seriously affected the properties of wine grapes.

What Type of Calcium Fertilizer is Best for Grape Base Application?

The results of principal component analysis based on multiple indicators showed that foliar application of 2.4-3.6 L/hm2 chelated sugar alcohol calcium on the leaf surfaces of grape leaves was the most suitable for improving the physiological characteristics and berry quality of wine grapes.

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

Foliar fertilization strategies can achieve higher nutrient use efficiency, reduce the negative impact on the environment, and potentially enhance consumer health benefits (Otálora et al. 2018).

Foliar Applications of Calcium, Silicon and Their Combination: A Tool

Regarding phenolic compounds, all foliar treatments led to minor effects. However, all three foliar Ca and Si treatments increased the total grape amino acid content. Consequently, the application of combined Ca and Si sprays to a vineyard is recommended as a tool for improving grape quality.

Optimizing drip fertigation management based on yield, quality, water

To optimize drip fertigation scheduling for wine grape in North China, a three-year field experiment was conducted to study the effects of irrigation and fertil-ization quota on yield,...

Fertilizing Grapes

Fertilizing grapes can increase annual yields, enhance grape and wine quality, and improve soil’s biological and chemical properties. As a deep-rooted, perennial crop, grapes remove a significant amount of nutrients from the soil and depend on adequate nutrient management to account for what is lost.

Grapevine Fertilizer

Use soil test results as a starting point, adjust based on vine performance, and always align the calculated rate with the chosen application method – solid, liquid, or foliar.

Both irrigation application and foliar spraying of calcium fertilizers are effective methods for replenishing calcium in grapes, but they have distinct advantages and disadvantages depending on cultivation conditions and specific needs.

I. Advantages and Disadvantages of Calcium Fertilizer Irrigation Application

1. Advantages:

(1) Uniform Distribution: By integrating calcium fertilizers into the irrigation system, nutrients are evenly distributed across the entire root zone, avoiding localized over-fertilization. (2) Lower Cost: Compared to foliar spraying, irrigation application requires less specialized equipment and involves lower labor and material costs. (3) Simple Operation: The process is straightforward and does not demand advanced technical expertise or equipment.

2. Disadvantages:

(1) Lower Efficiency: Direct dissolution of fertilizers in water may result in slower absorption compared to foliar spraying. (2) Environmental Risks: Excessive use of water-soluble fertilizers can increase the risk of water eutrophication, requiring strict control over dosage and frequency. (3) Soil Impact: Long-term, heavy application may degrade soil structure, reducing aeration and microbial activity.

II. Advantages and Disadvantages of Calcium Fertilizer Foliar Spraying

1. Advantages:

(1) High Absorption Efficiency: Nutrients are directly delivered to critical plant organs (e.g., leaves), maximizing utilization. (2) Water Conservation: Requires less water than irrigation application, promoting resource efficiency. (3) Easy Monitoring: Visual changes in leaf color can indicate calcium deficiencies, allowing timely adjustments.

2. Disadvantages:

(1) Complex Operation: Requires specialized equipment and technical skills; improper application may waste fertilizer or damage plants. (2) Higher Cost: Professional equipment and formulations are typically more expensive than those used for irrigation application. (3) Environmental Concerns: Chemical residues from spraying may pose risks to ecosystems and human health.

III. Comprehensive Considerations

When selecting a calcium fertilization method for grapes, consider the following factors:

1. Soil Conditions: If soil calcium levels are low, foliar spraying may be preferable. For healthy soils, irrigation application could suffice.
2. Crop Needs: Tailor the method to the grape’s growth stage and nutritional requirements.
3. Budget Constraints: Prioritize cost-effectiveness based on financial capacity.
4. Environmental Impact: Assess local water quality and soil health to minimize ecological harm.
5. Operational Feasibility: Choose the most accessible method based on available labor, equipment, and expertise.

both irrigation application and foliar spraying offer unique benefits and limitations. The optimal choice depends on contextual factors to achieve the best results.