Chelation in Agriculture Fertilizers: What to Know

Posted on May 05,

You may have heard of chelation or chelated nutrients before, but perhaps you are unsure what these terms really mean. What is chelation and how does it relate to the fertilizer many use in their operations?  

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Chelation is a chemical process of binding metal ions or other substances to a molecule, such as a chelating agent, to form a stable, ring-like complex called a chelate. The word chelation comes from the Greek word "chele," which means "claw," referring to the way the chelating agent binds to the metal ion like a claw. 

At a microscopic level, chelation looks similar to the graphic below:  

What is Chelation in Agriculture?  

In agriculture, chelation is used to improve plant nutrient uptake by making certain nutrients more available to plants. This is particularly useful in soils deficient in certain nutrients, such as iron or zinc. 

Chelating agents are used to chelate micronutrients, such as iron, copper, zinc, and manganese, making them more soluble and available for plant uptake. This process can improve plant growth and development, as well as increase crop yield and quality. 

For example, iron deficiency is a problem in many crops, particularly in alkaline soils. In this case, iron chelates can be applied to the soil or foliage of a wide variety of crops to improve iron uptake for the crop. Similarly, zinc chelates can be used to address zinc deficiencies in crops. Before using products to correct nutrient deficiencies, be sure to consult your agronomist. They can help you find a solution and create a plan specific to your needs.  

Types of Chelates  

There are various types of chelates used in fertilizer formulations. Refer below to see several types of chelates and what makes each type unique: 

Citric 

Citric chelates are a type of chelating agent commonly used in agriculture to improve plant nutrient uptake. They are derived from citric acid, a weak organic acid found in many fruits and vegetables, and can chelate metal ions. 

Citric-chelated micronutrients are designed for soil or foliar application. They are compatible with most herbicides, insecticides, and agricultural chemicals that may be used with liquid fertilizers. 

Humic and Fulvic Acids 

Humic and fulvic acids are organic acids found in soil, peat, and other natural sources.  Humic and fulvic acids can chelate both applied nutrients and nutrients in the soil, making them more available for plant use.  

In addition, humic and fulvic acids can also improve soil structure and fertility, promote microbial activity in the soil, and help retain soil moisture. This can improve plant growth and development, as well as increase crop yield and quality. 

Ammoniated  

Ammoniated chelates are chelating agents that contain both a metal ion and ammonia groups. The metal ion, typically iron, zinc, copper, or manganese, is bound to the chelating agent molecule through a chelation process, while the ammonia groups help to stabilize the metal ion and make it more available. 

EDTA 

EDTA stands for ethylenediaminetetraacetic acid, a synthetic compound that can chelate metal ions. They are particularly useful for chelating micronutrients, such as iron, zinc, copper, and manganese which help improve crop growth and overall crop quality and yields.  

EDTA-chelated solutions can be soil or foliar applied and are designed for use in liquid fertilizers and suspensions. They are compatible with most fungicides, insecticides, and herbicides. 

Download the Chelation Guide Now  

Chelation-based fertilizers provide an effective solution for growers to enhance plant and nutrition programs. To learn more about chelation and its benefits, download our Understanding Chelation guide, which covers everything you need to know about chelating agents and the different types used in fertilizer formulations.  

The modern horticultural landscape aims to achieve — and maintain — plant fitness and optimised yield. Chelated micronutrient fertilizers are one of the most effective ways to accomplish this. They are specialised fertilizers that help farmers meet the nutritional needs of their crops much more easily, efficiently and sustainably.

Let’s understand everything about chelated micronutrient fertilizers, their benefits and why Central Biotech’s Chelated Micronutrient Fertilizers are a boon for farmers globally.

This guide has been prepared to assist you further in making the right choice, that based on reliable, science-based facts on Chelated Micronutrient Fertilizers.

Brief Overview Chelated Micronutrient Fertilizers?

Micronutrients play a significant and very important role in plant growth and development which are necessary. These nutrients are, however, extracted from the soil, but the soil has most of these nutrients in their complex forms, which plants cannot efficiently take up. This is where chelation micronutrient fertilizers step into the limelight.

Chelation involves binding micronutrients to organic molecules known as chelating agents which form stable, water-soluble complexes. Those complexes shield the micronutrients from reacting to other substances like soil, which allows for easier uptake into the plants.

The Chelated Micronutrient Fertilizers made by Central Biotech combine macro element fertilizing and hormone-enhancing properties with new chelating forming technologies for efficient plant nutrient uptake.

Why Are Chelated Fertilizers Needed?

As we all know plants need both macronutrients such as (nitrogen, phosphorus, potassium, etc for the development of crops) and micronutrients such as ( vitamins and minerals) that should be delivered in proper amounts. Fertilizers are typically rich in macronutrients, but micronutrients are frequently forgotten, which results in deficiencies that can adversely affect the health and yield of crop development.

This is why chelated fertilizers are so important:

Enhanced Nutrient Solubility:

Chelate micronutrients stay soluble in the soil (including alkaline soil) and are readily absorbed by plants.

Agricultural Soil Deficiencies:

Micronutrients are often locked up in alkaline or acidic soils; biochar is effective in binding micronutrients so that they stay available to plants. Chelation stops this lock-up and keeps those nutrients free.

For more information, please visit chelated micro fertilizer.

Better Plant Growth: 

Chelated fertilizers provide micronutrients, preventing plant deficiencies, leading to overall healthy growth, vigorous roots, and increased disease resistance.

Agronomy:

Ensured Increased Crop YieldsProper macronutrient nutrition will result in better flowering, fruiting and higher crop productivity.

Benefits of Chelated Micronutrient Fertilizers

Importance of Chelated Aspects for Plants and Farmers Here are some of the top benefits:
Improved Nutrient Availability:

Due to better secretion of chelation micronutrients which are more quickly and effectively taken up by the plant roots for their growth and development.
Versatility:

Farmers try to obtain Organic Fertilizers that contain nutrients that can be delivered using a range of methods, such as foliar sprays, soil application, and fertigation, which means they can be adapted to various farming practices.
Less Wastage:

Less waste is produced by chelated nutrients and can be absorbed more easily than traditional fertilizers. These types of fertilizers help people achieve balanced soil nutrition and thus prolong  soil health.
Cost-Effective:

Though chelated fertilizers have a higher upfront cost, their robust performance and higher crop yields often translate into cost savings over time.

What Are the Common Chelated Micronutrient Fertilizers Available?

Central Biotech has developed our own Chelated Micronutrient Fertilizers. Common forms of chelated micronutrients are:

• Chelated Iron (Fe): It is very necessary for chlorophyll formation and controlling leaf yellowing.
• Chelated Zinc (Zn): It is required for the enhancement of root growth and further increases disease resistance in plants.
• Chelated Copper (Cu): It Increases and regulates plant enzyme activity and seed production.
• Chelated Manganese (Mn): It is essential for photosynthesis and nitrogen metabolism in plants.
• Chelated Boron (B): Essential for cell wall development and fruit development.

The Benefits of Chelated Micronutrient Fertilizers to Farmers

For farmers, shells can be a sustainable resource for chelated fertilizers to improve yield & crop quality. Here's how they do it:

Fighting Hidden Hunger:

Crops can be affected by something called 'hidden hunger' — Micronutrient deficiencies that can accumulate without showing outward signs until it is too late to save the crop. Chelated fertilizers manage these deficiencies effectively.

Better Profits:

Healthier crops with bigger yields mean better profits for farmers. Cheated fertilizers help reduce excessive fertilizer application, making them very sustainable. You are generalizing fertilizer efficiency.

Convenience:

These fertilizers are easy to apply and compatible with contemporary farming methods, reducing time and labour.

Also read: Overview of Chelated Micronutrient Fertilizers for Healthy Crops

How to Choose the Best Chelated Micronutrient Fertilizer

Choosing a suitable chelated fertilizer depends on various factors. Here are tips for choosing the right plan:

Soil Testing:

Test the soil that would expose you to certain micronutrient deficiencies in your farm

Crop Needs Origins of Micronutrients:

Distinct crops have different needs on microns. Select a fertilizer that's tailored to the needs of your crops.

The company:

Choose well-known brands such as Central Biotech to ensure that you get quality and effective items.

It's Applications:

Try to choose the method of application so that you can work best for your farming practices. This may include many things, including foliar spraying, soil application, and fertigation.

Seek Expert Advice:

Consult with agricultural specialists or Central Biotech representatives to find the fertilizer that suits you best.

In A Nutshell

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