1、Understanding Plant Physiology

Blueberries lack the capacity of other plants to process nitrate so leaf build-up is rapid following soil nitrogen application (whatever the form applied). This leads to excessive auxin hormone production in leaves. It is this build up of auxins that lead to growth flushes.

2、Calcium impregnation during isochoric cold storage to improve

The results showed the synergistic effect of calcium impregnation and isochoric cold storage on the quality of blueberries.

3、Calcium Excess In Soil: Its Impact On Plant Growth And Health

Calcium is an essential nutrient for plants, but excess calcium in soil can have detrimental effects on plant growth and overall health. Learn about the impact and how to manage it.

Can the Firmness, Weight, and Size of Blueberry Fruit Be Enhanced

Fertilization is a key agronomic management practice that affects fruit quality, where calcium (Ca) plays a critical role. This study aimed to assess the impact of low levels of soil-dosed Ca in carboxylic acid form on fruit size, weight, firmness, and residual soil fertility.

Suggested Fertilizer Practices For Blueberries

Spread the fertilizer evenly over the ground in a 15 to 18 inch circle around the plant. Blueberries are easily injured by excess fertilizer or concentrated placement. Lightly scratch in and water. Repeat at the same rate in 4 to 6 weeks.

BLUEBERRY FERTILIZATION IN SOIL

Young blueberries are often killed by over fertilization with nitrogen or the use of the wrong type of fertilizer since they are a salt sensitive plant. This is especially true under non-irrigated conditions.

Optimization of chemical fertilizer application for blueberry

We evaluated the effects of inorganic nitrogen, phosphorus, and potassium fertilizers at different doses. Plant vegetative growth, leaf photosynthesis parameters, fruit quality and soil...

CALCIUM FOR BLUEBERRIES

As calcium can only move through the xylem, calcium uptake runs into a problem because blueberry plants shut off the xylem as the berries grow, preventing any more calcium uptake. One option is to apply gypsum to the base of the plant.

What to Do If Blueberries Have Been Sprayed With Calcium

If blueberry plants exhibit abnormal conditions after spraying with calcium-magnesium-boron fertilizer, prompt action is necessary. The following recommendations may help address the issue:

Understanding blueberry physiology is the key to better calcium

Blueberries lack the capacity of other plants to process nitrate, so leaf build-up is rapid following soil nitrogen application, whatever the form applied. This leads to excessive auxin hormone production in leaves. It is this buildup of auxins that lead to growth flushes.

After replacing the soil due to excessive calcium fertilizer application in blueberry cultivation, the high concentration of calcium in the soil may negatively impact blueberry growth. Here's a detailed analysis:

1. Impact on Blueberry Growth: Blueberries are acid-loving plants that require significant calcium for normal physiological activities. Excessive calcium levels in the soil can prevent blueberries from absorbing sufficient calcium, hindering their growth.

2. Leaf Chlorosis: Over-fertilization with calcium raises soil pH, making it overly alkaline. This disrupts normal growth, leading to symptoms like yellowing, softening, or even leaf drop when calcium uptake is inadequate.

3. Reduced Fruit Quality: Calcium is crucial for fruit color, taste, and nutritional value. Excessive soil calcium may decrease fruit quality, resulting in dull coloration and poor flavor.

4. Soil Compaction: Excess calcium fixes organic matter in the soil, causing compaction. Compacted soil impedes root respiration and nutrient absorption, further affecting growth.

5. Increased Toxicity of Other Elements: High calcium levels can elevate the toxicity of other elements (e.g., magnesium, iron, zinc) in the soil, potentially harming blueberry plants.

6. Reduced Soil Microbial Activity: Excess calcium suppresses beneficial soil microorganisms responsible for decomposing organic matter and improving soil structure. Reduced microbial activity disrupts nutrient cycling, indirectly harming blueberry growth.

To address these issues:

1. Optimal Calcium Application: Apply calcium fertilizer judiciously based on soil tests. Typically, 10-15 kg per mu (approx. 0.067 ha) meets blueberry needs.

2. Adjust Soil pH: Use lime or acidic materials to maintain soil pH within 4.5-6.0, ideal for blueberries.

3. Enhance Soil Organic Matter: Incorporate organic fertilizers or crop residues to improve soil aeration and water retention, benefiting root development.

4. Regular Soil Testing: Monitor soil pH, organic content, and calcium levels regularly to inform fertilization strategies.

excessive calcium fertilizer during soil replacement can harm blueberry growth. To prevent this, apply calcium wisely, regulate soil pH, and maintain optimal organic matter levels for healthy soil.