1、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

2、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.

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 calcium...

4、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.

5、Optimal Timing for Foliar Fertilization of Spring Peanuts

To address these questions regarding foliar fertiliza-tion effects on peanut maturity, a multi-year and location test was conducted, with the hypothesis that foliar fertilization would amplify pod matura-tion and increase the proportion of mature pods compared to non-foliar fertilized peanut.

Fertilization of Peanut (Arachis hypogaea L.) with Calcium: Influence

Fertilization of Peanut (Arachis hypogaea L.) with Calcium: Influence of Source, Rate, and Leaching on Yield and Seed Quality by Robert Jason Florence

Morphological and molecular insights of calcium in peanut pod

This article provides a summary of the role of calcium, its management details, the transport of calcium into plants through the soil and overview of calcium genes in peanut pod development.

Effects of different fertilizer types and fertilization methods on

To further explore the regulatory effects of fertilizer techniques as “layered fertilization” and “nitrogen reduction and calcium increase” on peanut kernel quality, field experiments were conducted to clarify the intrinsic relationship between techniques and quality. In experiment 1, two experimental sites (Jiyang and Yinmaquan) were ...

Increasing Calcium and Decreasing Nitrogen Fertilizers Improves Peanut

The peanut is a major economic crop in the red soil region, which constitutes 22.7% of China’s national land area [1]. However, the inherent characteristics of red soil, such as acidity, low phosphorus and calcium, and low organic matter, pose significant challenges to peanut cultivation [2].

Fertility Considerations for Peanut Plants

Calcium Management: Calcium is crucial for peanut development, particularly in the pegging zone (top 3 inches of soil). Gypsum is commonly used to supply calcium and should be applied around early bloom.

The best timing and methods for calcium supplementation in peanut fields depend on multiple factors, including soil type, crop requirements, climatic conditions, and fertilization plans. To achieve optimal results, follow these steps:

1. Understand Soil Conditions: First, assess the soil’s pH and nutrient content. If calcium is deficient, supplementation is necessary. Conduct soil tests to determine pH levels and identify calcium needs.

2. Timing of Application: Apply calcium fertilizers during the early growth stages, when plants have the highest calcium demand. Timing may vary by region and season, but spring—a critical period for peanut development—is often ideal.

3. Select Appropriate Calcium Fertilizers: Choose from options like calcium-magnesia phosphate fertilizer, gypsum, or calcium sulfate. Match the product to local soil and crop needs.

4. Application Methods:

   • Ditch/Furrow Application: Spread fertilizer evenly and incorporate it into the soil.
   • Hole Application: Place fertilizer directly into planting holes.
   • Foliar Spraying: Apply liquid fertilizer to leaves. Select the method best suited to crop needs and soil conditions.

5. Dosage: Base application rates on soil test results and crop demands. Typically, 5–10 kg per mu (or equivalent) meets most peanut field requirements. Excessive use may lead to salt buildup or nutrient imbalances.

6. Frequency: Adjust application frequency according to growth stages and soil status. In early growth, apply every 7–10 days; reduce or stop applications later. Adapt based on crop performance and soil tests.

7. Monitoring and Adjustment: Regularly check soil calcium levels and crop health. If deficiencies or poor growth occur, increase dosage or adjust timing as needed.

8. Precautions: Avoid over-fertilization to prevent salt accumulation and nutrient imbalances. Do not mix calcium fertilizers with nitrogen-rich products, as this may reduce effectiveness.

optimal calcium supplementation varies with soil, crop, and climate. By evaluating soil conditions, timing applications properly, selecting suitable products, using appropriate methods, controlling dosage and frequency, and monitoring progress, peanut fields can receive adequate calcium to support healthy growth.