1、Relationship between nitrogen level and yield of leek Chemical

Field experiment was conducted to evaluate growth, yield and quality of leek (Allium porrum L.) under different nitrogen levels, on a heavy clay loam soil in the agro-climate of central Bosnia...

2、Leek Fertilization Requirements

Depending on the nutrient concentration and availability on the field soil, leeks require approximately per season 125-223 pounds of Nitrogen (N) per acre and 100-120 pounds of phosphorus and potassium per acre (140-250 kg N per hectare, 112-134 kg P and K per hectare).

3、Leek Fertilisation Requirements and Growing Tips

Leeks grow best in rich, well-draining soil with a neutral pH level. Enhance soil fertility by incorporating nutrient-rich compost or thoroughly decomposed manure.

4、Best Fertilizer for Leek

NPK fertilizers: These balanced fertilizers contain nitrogen, phosphorus, and potassium in ratios that support optimal growth, making them a reliable choice for leeks. Timing is crucial for effective fertilization. Knowing when to apply nutrients can significantly impact your leek harvest.

11801 Nitrogen requirement of leeks FS AW.indd

This factsheet presents the results from HDC project FV 350, where the nitrogen (N) requirements of vigorous F1 hybrid leeks were assessed. The results support the revised fertiliser recommendations published in the 2010 edition of the Fertiliser Manual - RB209 (Defra 2010).

The Best Organic Fertilizers for Growing Thriving Leeks

Growing lush, leafy leeks organically is absolutely achievable with the right fertilizer strategy. By enriching your soil before planting and feeding regularly with nitrogen-rich organic options like compost, fish emulsion, or blood meal, you’ll give your leeks the fuel they need to thrive.

Fertilizing Leeks: What, When & How to Apply

Choosing the right fertilizer for Leeks? Start fertilizing smarter with our tips on timing, nutrient needs, and application methods.

What Fertilizer Is Best For Leeks?

Some good organic fertilizers for leeks include blood meal, blood and bone, fish emulsion, and granular fertilizers with a higher N number in the NPK numbers (e.g. 8-3-4).

Fertilizing Leeks: Feeding Tips for Bigger, Sweeter Stalks

Leeks respond strongly to nitrogen, which promotes healthy stalks. Use a balanced fertilizer with a higher nitrogen ratio or side-dress with blood meal or composted manure.

Yield and content in nitrates, minerals and ascorbic acid of leeks and

The influence of mineral NPK fertilizers and organic fertilizers such as manure compost, woodchip compost and blood meal on the yields and the nutritive value of leeks and turnips were compared.

Nitrogen fertilizers are one of the most essential nutrients for plant growth, primarily providing the nitrogen (N) that plants require. Selecting the appropriate nitrogen fertilizer is critical for enhancing leek yield and improving quality. Below is a detailed analysis of the components of nitrogen fertilizers for leeks:

1. Ammonium Nitrate (NH₄NO₃)

• Composition: A common nitrogen fertilizer with the chemical formula NH₄NO₃, composed of nitrogen, hydrogen, oxygen, and ammonia.
• Characteristics: High nitrogen content (~30%), suitable for rapidly promoting leek growth.
• Advantages: Easy to dissolve and absorb quickly by plants.
• Disadvantages: Relatively expensive and has a significant environmental impact, requiring cautious use.

2. Urea (CO(NH₂)₂)

• Composition: A compound with ~66.7% nitrogen content, chemical formula CO(NH₂)₂.
• Characteristics: Moderate nitrogen release, ideal for slow-release applications like leek cultivation.
• Advantages: Cost-effective and less polluting, though decomposition is slower.
• Disadvantages: Slower nitrogen release compared to other fertilizers, requiring longer to take effect.

3. Nitrogen-Sulfur-Based Compound Fertilizers (e.g., NPK Fertilizers)

• Composition: Typically contains nitrogen (N), phosphorus (P), and potassium (K), with the formula (NH₄)(SO₄)(K₂O).
• Characteristics: Comprehensive nutrition suitable for multiple crops, including leeks.
• Advantages: Meets leek’s N, P, and K needs, improving fertilizer efficiency.
• Disadvantages: Expensive and requires careful dosing to avoid nutrient imbalance.

4. Bio-Organic Fertilizers

• Composition: Derived from animal manure, crop residues, etc., processed through fermentation.
• Characteristics: Rich in microorganisms and organic matter, improves soil structure and water/nutrient retention.
• Advantages: Provides stable, long-term nitrogen supply and benefits soil health.
• Disadvantages: Higher cost and requires thorough decomposition before use to avoid growth inhibition.

5. Nitrogen Gas-Based Fertilizers

• Composition: Produced by converting nitrogen gas into a usable form under high pressure.
• Characteristics: High purity and pollution-free, directly absorbed by plants.
• Advantages: Environmentally friendly and efficient, suited for eco-sensitive environments.
• Disadvantages: High production costs and requires specialized equipment and technology.

6. Fertilization Recommendations for Nitrogen Fertilizers

• Timing: Apply during key growth stages (e.g., spring) based on leek growth cycles and soil conditions.
• Method: Incorporate into soil via deep tillage to maximize efficiency. Avoid overapplication to prevent excess nutrients or loss.
• Considerations: Choose fertilizers based on type, soil compatibility, and crop needs. Combine with other fertilizers for optimal results.

Different nitrogen fertilizers can address leek’s nutritional requirements. When selecting, consider factors such as composition, characteristics, environmental impact, and compatibility with soil and crops. A rational fertilization strategy not only boosts yield and quality but also reduces environmental harm, supporting sustainable agricultural goals.