1、Seasonal differences in yield and fertilizer use efficiency of

The results of this study indicate that the early season is most suitable for peanut production, and the B300:T300 and no Ca application strategies are appropriate for the Ca-sensitive and -tolerant cultivars, respectively, in the early season in southern China.

2、Calcium Fertilization in Peanuts: Importance, Sources, and Considerations

It is required for the development of cell walls and membranes in plants. Calcium is particularly critical for peanut seed development, and optimum levels of c lcium in the soil can improve the formation of pods and seed germination. Insufficient calcium availability or absorption of calcium by peanut seed leads to calcium deficiency, which in

3、(PDF) Calcium Fertilization in Peanuts: Importance, Sources, and

This article examines the sources of calcium, application rate and timings of these sources, and their effect on peanut growth. The purpose of this article is to share knowledge about...

The Optimal Time to Apply Calcium Fertilizer on Peanut Leaves

An experiment was carried out to study the effects of different rates of calcium application on peanut growth, physiological characteristics, yield and quality under drought stress at pegging stage and pod setting stage in pool cultivation with rainproof, using variety 606 as experimental material. …

When is the Best Time to Apply Calcium Fertilizer for Peanuts?

In fact, application of liquid calcium products like calcium thiosulfate are effective in supplying calcium to the pegging zone, especially when soil calcium levels are near or below the optimum levels or during crucial growth phases.

Uptake and timing of calcium in runner peanut

Since requirements of Ca for optimal pod yield are considerably higher than those required for vegetative growth (Comber, 1959, Wolt and Adams, 1979), information regarding Ca uptake pattern of peanut pods is valuable for determining optimal timing for different Ca supplements.

Increasing Calcium and Decreasing Nitrogen Fertilizers Improves Peanut

Therefore, this study suggested that adjusting the calcium (568 kg ha−1) and nitrogen (112.5 kg ha−1) fertilizer rates significantly improved peanut growth and productivity by enhancing photosynthetic efficiency and nutrient accumulation in calcium-deficient acidic red soil.

Calcium Fertilization in Peanuts: Importance, Sources, and

This article examines the sources of calcium, application rate and timings of these sources, and their effect on peanut growth. The purpose of this article is to share knowledge about calcium ...

Optimal Calcium Fertilizer Application for One Mu of Peanut Cultivation

The optimal amount of calcium fertilizer for one mu of peanut cultivation depends on multiple factors, including soil type, peanut variety, climatic conditions, and fertilization practices.

Effective Nutrient Application for Peanuts: Calcium Fertilizers

To explore whether calcium absorption and peanut yields can be affected by foliar application of sorbitol-chelated calcium, this study conducted two field experiments using Virginia peanut (Huayu-22) in 2020 and 2021.

Peanuts are one of the world's most important oil crops, valued for their high nutritional content and versatile uses. During their growth, proper application of calcium fertilizer is critical for enhancing both quality and yield. Below is a detailed discussion on the best timing and methods for applying calcium fertilizer to peanuts.

I. Choosing the Optimal Application Time

1. Early Growth Stage: During the seedling stage (the first week after seed germination), applying calcium fertilizer promotes root development and strengthens the plant’s adaptability to environmental stress. Early calcium application encourages deeper root penetration, increases the root-to-shoot ratio, and enhances overall stress resistance.

2. Pre-Flowering Stage: One week before peanuts enter the flowering period, calcium fertilizer improves bud differentiation, pollination rates, and fruit set. Calcium optimizes plant nutrition and photosynthetic efficiency, providing adequate nutrients for fruit formation.

3. Maturation Stage: Applying calcium fertilizer approximately one month before harvest boosts oil and protein content while reducing empty shells and kernel damage. Calcium improves peanut structure, resulting in fuller, higher-quality seeds.

II. Application Methods and Precautions

1. Soil Testing: Conduct soil tests before application to determine calcium levels and pH, guiding optimal dosage and application methods.

2. Deep Incorporation: To ensure roots fully absorb calcium, evenly spread the fertilizer on the soil surface and incorporate it into the soil to a depth of 5-10 cm. This targets calcium to root zones, improving efficiency.

3. Proper Dosage: Base calcium amounts on soil test results and peanut variety traits. Excessive use may raise soil salinity, harming growth.

4. Avoid Direct Root Contact: Prevent calcium fertilizer from touching roots directly, which could cause burns or absorption issues. Spread the fertilizer evenly before incorporation.

5. Timely Irrigation: Water immediately after application to dissolve calcium and aid absorption.

6. Combine with Other Fertilizers: Enhance results by supplementing with micronutrients like phosphate or potassium fertilizers.

7. Weather Considerations: Delay application during droughts or extreme heat to avoid overly wet soil or excessive transpiration.

8. Monitor Plant Response: Observe growth and soil moisture post-application, adjusting strategies if abnormalities arise.

calcium fertilization is vital for improving peanut quality and yield. By selecting optimal timing, using correct methods, and addressing key precautions, farmers can promote healthy growth and maximize economic value.