1、Is Chlorine Used in Fertilizer? The Truth Revealed

One such concern revolves around the use of chlorine in fertilizers. While chlorine is a vital element in many industrial processes, its presence in fertilizers has sparked debate among farmers, environmentalists, and researchers.

2、Effects of Long

Chloride is a necessary micronutrient for plant growth, and with long-term application of chlorine-containing fertilizer, significant amounts of Cl− are introduced into farmland ecosystems.

3、Effects of Chlorine

Potash and ammonium nitrogen fertilizers primarily comprise chloride or sulfate compounds. Compared with sulfur-based fertilizers, chlorine-based fertilizers offer higher solubility, more abundant resources, and lower costs.

Chlorine in Fertilizer: Boost Plant Health & Yield

Discover the vital role of chlorine in fertilizers for plant health, enhancing growth, disease resistance, and overall crop yield.

Chlorine fertilizer: Excess and Deficiency in Plants [2022]

Chlorine is a key component of many chemical fertilizers, and chlorine fertilizers are the main component of modern agricultural nutrients. Because of this, chlorine is a necessary part of growing food.

Containing chlorinated fertilizers when used cautious

Chloride-containing fertilizers are mainly ammonium chloride, potassium chloride, and chlorine-containing compound fertilizers (complex fertilizers). Improper use of these fertilizers will cause more damage to crops, which will not only affect the quality of crops, but also cause damage to crops.

Which crops can use "chlorine" compound fertilizer? Which crops are

In areas where the soil chlorine is less than 50 mg/kg, these crops can use potassium chloride and chlorine-containing low-chlorine fertilizers. Lettuce, cabbage, sweet potato, flue-cured tobacco, strawberries, apples, and young trees are chlorine-free crops.

How to use chlorinated fertilizer safely

Containing chlorinated fertilizer can be used as base fertilizer, but also as top dressing, but it is not suitable for seed fertilizer. When making the base fertilizer, it should be applied early and covered with soil. Generally, it should be applied at least one week before sowing or transplanting. Apply it to the underside of the seed or ...

Rational application of chlorine

Containing chlorinated fertilizer can be used as base fertilizer or top dressing, but according to the water solubility of chloride ion, it should not be used as seed fertilizer or top layer fertilizer.

Chlorine (Cl) for Plants: A Comprehensive Guide

Learn about the role of chlorine (Cl) in plants, its functions, deficiency symptoms, and how to address chlorine issues with fertilizers like potassium chloride and calcium chloride.

Use and Management of Chlorine-Containing Fertilizers

In agricultural production, the rational use of fertilizers is one of the key factors for improving crop yield and quality. due to the strong oxidizing and corrosive properties of chlorine in chemical fertilizers, improper use can adversely affect soil structure and crop growth. understanding the sources and properties of chlorine in fertilizers, its impact on soil, and how to scientifically manage and apply fertilizers is of great significance for ensuring the sustainable development of agricultural production.

I. Sources of Chlorine in Fertilizers

Chlorine in fertilizers mainly originates from the following pathways:

1. Ammonium Chloride (NH₄Cl): A common nitrogen fertilizer. During production, chlorine atoms in ammonium chloride are reduced to chloride ions (Cl⁻), entering the fertilizer product. Other chloride-containing fertilizers may also contain chlorine.

2. Potassium Chloride (KCl): A common potassium fertilizer. During production, chlorine atoms in potassium chloride are reduced to chloride ions (Cl⁻), entering the fertilizer product.

3. Calcium Chloride (CaCl₂): A common phosphorus fertilizer. During production, chlorine atoms in calcium chloride are reduced to chloride ions (Cl⁻), entering the fertilizer product.

II. Properties of Chlorine in Fertilizers

1. Oxidizing Properties: Chlorine is a strong oxidant with high oxidizing potential. During agricultural fertilization, chlorine can react with organic matter in soil through redox reactions, disrupting the soil microbial environment and reducing soil fertility.

2. Corrosiveness: Chloride ions are highly corrosive. They can combine with calcium ions in soil to form soluble calcium chloride, damaging soil structure and reducing water-holding capacity and air permeability. Additionally, chloride ions can bind with magnesium ions to form insoluble magnesium chloride, further exacerbating soil structure degradation.

III. Impact of Chlorine on Soil

1. Effects on Soil Microbial Activity: The presence of chloride ions inhibits the reproduction and activity of soil microorganisms, reducing soil bioactivity. This leads to a decrease in beneficial microbes, affecting nutrient cycling and organic matter decomposition.

2. Effects on Soil pH Balance: Chloride ions alter soil acidity. In acidic soils, chloride ions combine with hydroxide ions to form soluble hydrogen chloride, increasing soil acidity. In alkaline soils, chloride ions react with carbonate ions to form soluble sodium chloride, intensifying alkalinity. This worsens the soil environment, hindering crop growth.

3. Effects on Soil Nutrients: Chloride ions influence nutrient availability. For example, potassium chloride increases soil potassium supply, benefiting crops, while ammonium chloride boosts nitrogen but also increases ammonia volatilization, reducing nitrogen utilization efficiency.

IV. Scientific Management and Use of Fertilizers

1. Select Appropriate Fertilizer Types: Choose fertilizers based on crop needs and soil conditions. Nitrogen fertilizers can include urea or ammonium nitrate; phosphorus fertilizers can include superphosphate or diammonium phosphate; potassium fertilizers can include potassium sulfate or potassium chloride.

2. Control Fertilizer Dosage: Avoid overapplication, as excess fertilizer leads to salt accumulation, compromising soil structure and function.

3. Optimize Fertilization Timing and Methods: Apply fertilizers during peak crop growth stages. Use deep placement or furrow application to minimize direct soil contact and reduce volatilization losses.

4. Enhance Soil Management: Improve soil structure and organic matter content. Practices like crop rotation, deep tillage, straw incorporation, and green manure cultivation can boost soil fertility and water retention.

5. Utilize Organic Fertilizers Wisely: Organic fertilizers enriched with beneficial microbes and nutrients improve soil ecology. Incorporate materials like chicken manure or pig manure to enhance fertilizer efficiency.

6. Regular Soil and Crop Monitoring: Test soil pH, nutrient levels, and microbial activity periodically. Adjust fertilization strategies and fertilizer types as needed to optimize outcomes.

Rational fertilizer use is crucial for sustainable agriculture. By selecting suitable fertilizers, controlling dosages, optimizing application methods, improving soil management, leveraging organic fertilizers, and monitoring soil health, the negative impacts of chlorine in fertilizers can be mitigated. This approach enhances fertilizer efficiency, crop quality, and long-term agricultural sustainability.