Ammonium Sulfate Usage Guide

Ammonium sulfate is a common nitrogen fertilizer widely used in agriculture to improve soil fertility and promote plant growth. This article will introduce the composition, advantages and specific application methods of ammonium sulfate in different crops in detail, and provide farmers with relevant precautions and the best time to apply it.

Composition of ammonium sulfate

Ammonium sulfate ((NH ₄ ) ₂ SO ₄ ) contains 21% nitrogen and 24% sulfur. Nitrogen is an important element for plant growth and chlorophyll synthesis, while sulfur plays an important role in protein synthesis and enzyme function.

Advantages of Ammonium Sulfate

• Increases nitrogen content in the soil and promotes plant growth.
• High in sulfur, it helps improve soil quality.
• The cost is relatively low and suitable for large-scale use.
• Easily soluble in water, easy for plants to absorb.

Application of ammonium sulfate in different crops

cereals

When growing cereals, ammonium sulfate is most commonly used as base fertilizer and topdressing. It is recommended to apply 10-15 kg per acre, before sowing or early after sowing to promote tillering and rooting.

vegetable

For vegetable crops, ammonium sulfate is usually used as topdressing. It is recommended to apply 5-10 kg per mu and apply it 10-15 days after transplanting to promote stem and leaf growth.

fruit

In fruit cultivation, ammonium sulfate helps improve fruit quality. It is recommended to apply 10-20 kg per mu, and the best effect is achieved by applying 1-2 times before germination and after flowering.

Precautions for use and best time to apply

• Avoid applying during periods of high temperature and drought to prevent nitrogen loss through volatilization.
• It will be more effective when combined with organic fertilizer and other compound fertilizers.
• When applied to acidic soils, appropriate amount of lime should be added to neutralize the acidity.
• Appropriate irrigation should be applied after fertilization to promote the dissolution and absorption of ammonium sulfate.

Adaptability of ammonium sulfate in different soil types

Ammonium sulfate is suitable for all soil types, but works best in acidic soils, helping to neutralize the soil acidity. However, when used in alkaline soils, it needs to be applied in conjunction with an acidic fertilizer to avoid raising the soil pH too high.

The following are recommendations for applying ammonium sulfate to different soil types:

• Sandy loam: It is recommended to apply topdressing in batches to reduce nitrogen leaching.
• Clay loam: Appropriate deep application is conducive to the absorption and utilization of fertilizer.
• Acidic soil: It is recommended to mix with alkaline fertilizer to neutralize the acidity.

By understanding the composition, advantages and application methods of ammonium sulfate in different crops, farmers can choose the appropriate fertilization plan according to their own soil and crop conditions to maximize the yield and quality of crops.