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

PDF | This article examines the sources of calcium, application rate and timings of these sources, and their effect on peanut growth.

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、SS

For peanuts grown for seed, regardless of the soil test calcium levels in the pegging zone, application of gypsum at the rate of 1000 lb/acre is essential for good germination of peanut seeds.

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.

Peanuts use calcium fertilizer for high yield

In agricultural practices, the most commonly used calcium fertilizer is gypsum, or calcium sulfate. It can be applied as a base fertilizer at a rate of 50 to 100 kilograms per mu, or as a top dressing during the early flowering stage, with a recommended application rate of 20 to 30 kilograms per mu.

Growing Peanuts – Fertilizers for Peanuts

Peanuts grow best in a soil pH range of 6.0-7.5, with liming recommended for pH levels below 6.0 to enhance fertilizer efficiency. Well-drained, light-colored, loose, friable sandy loams with high levels of calcium (Ca) and moderate organic matter are ideal for peanut cultivation.

Does Peanut Require Calcium

For peanuts, calcium-magnesium-phosphate fertilizer is an essential type of fertilizer, playing a vital role in its growth and development. Below is a detailed explanation of why peanuts need calcium-magnesium-phosphate fertilizer and its impact on peanut growth.

What is the Best Fertilizer for Peanuts? Maximize Your Yields

This article provides peanut fertilizer recommendations and explains how to maximize your yields by understanding peanut nutrient requirements and implementing effective peanut nutrient management.

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.

Calcium on Peanuts: What You Should Know to Improve Yields

Incorporating calcium into ammonia-based fertilizers, liming, and gypsum application aids in concentrating needed calcium deposits within the rhizosphere. Water solubility of calcium is essential to peanut development since plants are incapable of solid nutrient uptake.

Applying calcium fertilizers to peanut seeds is an effective method to increase available calcium content in the soil. This practice helps improve soil structure, enhance crop stress resistance, and promote root development. Selecting the appropriate calcium fertilizer is critical for seed dressing, as the type and dosage directly affect seed germination rates and seedling growth. Below, we detail several suitable calcium fertilizers for peanut seed dressing along with their characteristics:

1. Calcium Carbonate

Chemical Properties: Calcium carbonate is a common inorganic calcium fertilizer with stable chemical properties that are unlikely to react with other soil components. Application Method: Apply by sprinkling powder directly onto seeds or mixing into the soil. Avoid overuse to prevent compromising soil air permeability and water retention. Advantages: Inexpensive, easy to store and transport, suitable for large-scale farming. Disadvantages: Long-term use may lead to soil compaction, negatively impacting crop growth.

2. Gypsum (Calcium Sulfate)

Chemical Properties: Calcium sulfate has high solubility and dissolves rapidly in water, forming a solution for convenient application. Application Method: Dissolve in water and spray onto seeds or mix with soil. Avoid combining with alkaline substances to prevent chemical reactions. Advantages: High solubility, easy to apply, and quickly replenishes soil calcium. Disadvantages: Higher cost and potential environmental impact; requires cautious use.

3. Lime

Chemical Properties: Primarily composed of calcium oxide, lime is highly alkaline and neutralizes acidic substances in the soil, raising pH levels. Application Method: Apply lime powder directly to seeds or mix with soil. Control dosage to avoid excessive alkalinity. Advantages: Effectively raises soil pH, improves structure, and boosts crop growth. Disadvantages: Strong alkalinity may inhibit certain plants; select based on specific conditions.

4. Chelated Calcium

Chemical Properties: Chelated calcium is a chelate-form calcium fertilizer, offering higher absorption efficiency for plants. Application Method: Mix with water or liquids and spray onto seeds or soil. Avoid overapplication to maintain effectiveness. Advantages: Highly absorbable by plants, enhancing calcium fertilization results. Disadvantages: Relatively expensive; requires careful handling during use.

5. Bio-Calcium Fertilizers

Chemical Properties: Bio-calcium fertilizers, such as seaweed extracts, are produced via biotechnology and contain calcium. Application Method: Mix with water or liquids and apply to seeds or soil. Avoid overapplication to prevent reduced efficacy. Advantages: High bioactivity and eco-friendliness, promoting crop growth. Disadvantages: High production costs; requires safe handling during use.

When selecting calcium fertilizers for peanut seed dressing, factors such as cost, effectiveness, safety, and environmental impact must be considered. Different fertilizers have distinct advantages and disadvantages, so choices should align with specific conditions. Additionally, moderate application is essential to avoid issues like soil compaction.