1、Nitrogen

There are basically two types of fertilizers namely inorganic and organic fertilizers. Inorganic fertilizers or chemical fertilizers are the ones that contains elements that support the growth of plants. For example: nitrogen, phosphorus, and potassium fertilizers. Now, we will see them one by one.

2、Comprehensive Guide to Nitrogen, Phosphate, and Potassium Fertilizers

This article mainly discusses inorganic fertilizers, also known as chemical fertilizers, including nitrogen (N), phosphorus (P), potassium (K), micronutrient fertilizers, and compound fertilizers.

3、The Types of NPK Fertilizers: A Comprehensive Guide

Discover the different types of NPK fertilizers in this comprehensive guide. Learn about granular, water-soluble, liquid, and organic NPK fertilizers...

4、Types and Uses of Nitrogen Fertilizers for Crop Production

Table 1 lists the various nitrogen fertilizers commonly used for agronomic crops in Indiana. Shown for each fertilizer material is the percent and form of nitrogen it contains and its recommended uses.

What fertilizer contains nitrogen, phosphorus and potassium

Common compound fertilizers on the market usually contain three elements: nitrogen, phosphorus and potassium. In different fertilizer formulations, the ratio of nitrogen, phosphorus and potassium will be different to meet the needs of different crops.

Nutrient Management :: Fertilizers

Potassic fertilizers are chemical substances containing potassium in absorbed form (K+). There are two potassium fertilizers viz., muriate of potash (KCI) and sulphate of potash (K2S04).

Types of Fertilizers Based on Chemical Composition and Their Use in

These are fertilizers that combine two or more nutrients, usually nitrogen, phosphorus, and potassium (NPK), in varying ratios. NPK Fertilizers (e.g., 10-10-10, 20-20-20) – Balanced fertilizers that provide all three macronutrients.

What Fertilizer Has Nitrogen Phosphorus and Potassium? The Ultimate

NPK fertilizers are a type of synthetic fertilizer that contains a balanced mix of nitrogen, phosphorus, and potassium. These three essential macronutrients are critical for plant growth and development, and are often referred to as the “building blocks” of plant nutrition.

Types of fertilizer

In response, the industry has developed special types of fertilizers designed to reduce these effects. They include foliar, slow and controlled release fertilizers, as well as fertilizer additives such as urease and nitrification inhibitors.

All About Nitrogen Fertilizers: Types, Benefits, and Application Tips

Learn all about nitrogen fertilizers, their types, benefits, and application tips to maximize crop growth while minimizing environmental impact. Find out more about the most common type of fertilizer used

Potassium fertilizers are essential nutrients for plant growth, playing critical roles in development, photosynthesis, and stress resistance. Among the various types of potassium fertilizers, nitrogen-containing ones attract attention due to their unique chemical composition and mechanisms. Below is a detailed introduction to common nitrogen-containing potassium fertilizers, their characteristics, applications, and precautions:

1. Potassium Nitrate (KNO₃)

Potassium nitrate, with the chemical formula KNO₃, contains potassium ions (K⁺), nitrogen (from nitrate NO₃⁻), and oxygen. The nitrogen in KNO₃ originates from nitrate, a strong oxidant rapidly absorbed by plants.

Characteristics & Applications:

• Fast Absorption: Nitrogen in KNO₃ is quickly utilized by plants, promoting growth.
• Root Development: Nitrogen enhances root growth and nutrient/water uptake.
• Yield Improvement: Significantly boosts crop yield and quality, especially for fast-growing crops.

Precautions:

• Excessive use may lead to nitrogen toxicity in soil.
• Avoid use in acidic soils to prevent reduced nitrogen effectiveness.

2. Potassium Sulfate (K₂SO₄)

Potassium sulfate, with the formula K₂SO₄, contains potassium ions (K⁺) and sulfur (from sulfate SO₄²⁻). Its nitrogen content comes from sulfate, a weaker oxidant but still plant-available.

Characteristics & Applications:

• Slow Release: Nitrogen releases gradually, allowing controlled application.
• Versatile Use: Suitable for grains, cash crops, and more.
• Soil Improvement: Enhances soil structure, aeration, and water retention.

Precautions:

• Poor solubility in alkaline soils; monitor soil pH.
• Sulfate may cause issues like leaf spot diseases in sensitive crops.

3. Monoammonium Phosphate (KH₂PO₄)

Phosphorus dihydrogen potassium, KH₂PO₄, contains potassium (K⁺), phosphorus (PO₄³⁻), and hydrogen. Its nitrogen derives from phosphate, a strong oxidant rapidly absorbed by plants.

Characteristics & Applications:

• High Phosphorus Content: Ideal for phosphorus-hungry crops (e.g., rice, sugarcane).
• Growth Promotion: Phosphorus enhances crop yield and quality.
• Wide Applicability: Suitable for grains, cash crops, etc.

Precautions:

• Decomposes easily in acidic soils; check soil pH before use.
• Excess phosphorus may inhibit growth in certain crops.

4. Potassium Carbonate (K₂CO₃)

Potassium carbonate, K₂CO₃, contains potassium ions (K⁺) and carbonate (CO₃²⁻). Its nitrogen originates from carbonate, a weak oxidant.

Characteristics & Applications:

• Slow Release: Gradual nitrogen release prevents overapplication.
• Versatile Use: Suited for grains, cash crops, etc.
• Soil Improvement: Enhances soil structure, aeration, and water retention.

Precautions:

• Poor solubility in acidic soils; adjust for soil pH.
• Carbonate may trigger diseases in sensitive crops.

Summary

Nitrogen-containing potassium fertilizers vary in composition and function. Selecting the appropriate type requires considering crop needs and soil conditions to optimize results. Balanced application avoids negative impacts like nutrient excess or soil imbalance.