Types of Fertilizer: How Works?

Fertilizer is one of the most important things you can use to improve the growth of your plants. The problem is that there are so many different types. That makes sense since plants aren’t exactly all the same. Well, in this article I’ll teach you about some of the most popular types and what makes them unique.

There are many different types of fertilizer you can purchase for your garden. The choices can be overwhelming, and deciding which type is best for a particular plant can be challenging. With so many types of fertilizer, how can you choose? To help answer that question, we will review the most common types of fertilizer and discuss what they have in them.


Fertilizer is a mix of nutrients that plants need to grow. It helps them grow bigger, faster, and healthier! There are different kinds of fertilizer, depending on what kind of plant you’re growing. Some fertilizers are made for use in soil, while others are made for use in water.

Fertilizer is good for growing plants and makes them taste better too!

The Advantages of Fertilizer

Fertilizer is used to increase the productivity of plants and crops. There are many advantages of fertilizer, especially in modern farming.

Increase crop yield

The most important advantage of fertilizer is that it increases crop yield. If you don’t apply fertilizer, you won’t get as many crops, and they will be smaller. Soil comprises minerals, organic matter, and microorganisms; if the soil doesn’t have enough nutrients, your plants won’t grow well. Fertilizer helps replace some of these nutrients and ensures your plants get what they need to grow strong and healthy.

Faster growth

Another advantage of fertilizer is that it can help plants grow faster than without it. Fertilizers contain different nutrients that help plants grow more quickly than they would naturally on their own over time; this means you’ll be able to harvest them sooner than if you didn’t use any fertilizer!

Improves soil fertility

The main purpose of fertilizer is to improve the fertility of the soil. This means that the soil becomes more capable of producing crops, which leads to a higher yield and higher quality crops.

Increased crop quality

Fertilizers can help improve the quality of your crops by increasing their yield, improving their color and texture, and making them more resistant to disease and pests.

Improves overall soil health

Fertilizer helps the soil by providing nutrients and improving the soil’s structure. This helps to increase the amount of water that can be absorbed by the soil, which in turn helps plants to grow better.

Reduced Cost Per Unit of Produce

Fertilizer improves plant growth, meaning that you’ll get more produce from your plants, which means they’ll be healthier and more productive throughout their lifespans.

Disadvantages of Fertilizer

1. It can kill plants. Though fertilizers are meant to be helpful, they can be harmful if not applied correctly. This is especially true for certain water-soluble fertilizers that can be washed out of the soil by rain or watering.

2. Fertilizer is expensive. If you’re not careful with your fertilizer application, you’ll waste a lot of money on something that could harm your plants instead of helping them thrive.

3. It isn’t good for the environment because it takes natural resources to produce and even more natural resources to transport it.

4. It’s not a sustainable solution because eventually, the soil will be depleted or harm other ecosystems if you continue to use fertilizer

5. Fertilizers can also lead to eutrophication, which encourages algae growth in water bodies and lakes (this is bad because algae blooms can kill fish).

Types of Fertilizer

Different Types of Fertilizer

There are many types of fertilizer. All fertilizers help plants grow and produce more food. However, not all fertilizers are the same.

Types of Fertilizer According to the Form

Liquid Fertilizer

Liquid Fertilizer

Liquid fertilizer is a liquid that contains nutrients for the plant to absorb. It can be applied directly to the soil or diluted with water for spraying on the leaves or roots of plants. Liquid fertilizers usually contain nitrogen, phosphorous, potassium, iron, and other trace elements.

Granular Fertilizer

Granular Fertilizer

Granular fertilizers are dry materials that contain nutrients for plants to absorb when they come into contact with soil moisture. They can be applied directly to the soil or mixed with water before being applied to dissolve them into a solution. Granular fertilizers usually contain nitrogen, phosphorous, and potassium but may also contain iron and other trace elements. They come in different sizes so you can choose one suitable for your garden’s size and type (e.g., small-spaced annuals).

Powder Fertilizer

Powder Fertilizer

Powder fertilizers are granulated and can be applied with a spreader or rotary spreader. They are best used on large, open lawns or garden areas. Powder fertilizers should be used before seeding or sodding.

Powder fertilizers are also commonly used as plant-food supplements in containers and hanging baskets. These products are usually pre-mixed with water to make a concentrated liquid solution, which is then applied to the soil around plants using a watering can or sprayer.

Types of Fertilizer According to the Activities

Fast-Release Fertilizer

Fast-release fertilizers provide quick bursts of nutrients that help plants grow faster and healthier. These products can be applied more frequently than slow-release fertilizers because they release their nutrients quickly. Fast-release fertilizers are great for boosting your plants at the beginning of their growing season, but they aren’t recommended if you want to maintain healthy plants throughout the year.

Slow-Release Fertilizer

Slow-release fertilizers release nutrients slowly over time, so there is no need for constant applications throughout the growing season like traditional granular products require. Instead, you add the appropriate amount of slow-release fertilizer in the spring, and you’re good to go. Slow-release fertilizers are great for maintaining your plants’ health, but they won’t give your plants a quick boost of nutrients to help them grow faster.

Types of Fertilizer According to the Chemical Substances

  • Inorganic fertilizers
  • Organic fertilizers

Inorganic Fertilizers

Inorganic fertilizers are chemical substances that contain mineral elements. They are typically used in agriculture to promote plant growth, but you can use them for non-agricultural purposes. Inorganic fertilizers can be either natural or synthetic.

There are several types of inorganic fertilizers, including:

  • Nitrogenous
  • Phosphorus
  • Potassium
Nitrogen Fertilizers
Nitrogen Fertilizers

Nitrogen fertilizers are the most common type of fertilizer, and they’re usually applied in liquid form. It is a key building block for plants and is essential to healthy growth. It’s also commonly used as a soil conditioner, which can help improve your soil’s texture and moisture retention.

The most common form of nitrogen fertilizer is urea, derived from natural gas. Urea is sprayed on the ground as a liquid before it evaporates into the air. This process turns urea into ammonia gas, which then reacts with other gases in the air to produce nitrous oxide (N2O), a greenhouse gas that contributes to climate change.

Phosphorus fertilizers
Phosphorus fertilizers

The most common type of phosphorus fertilizer is phosphate rock, which contains up to 90% phosphate. It’s typically ground into a powder and then added to soil as a dry granular fertilizer. Phosphorus is found in the soil, air, and water, but it is usually locked up with other compounds that prevent it from being available to plants. To make it available for plant use, fertilizer companies produce fertilizers that contain phosphorus compounds in a form that plants can absorb.

The most common types of phosphorus fertilizers are:

Superphosphate: Superphosphate is a mixture of phosphate rock and sulfuric acid.

Triple superphosphate: made from triple superphosphate rock, which contains more than 90 percent available phosphoric acid; sometimes also contains ammonium nitrate.

Single superphosphate: It is made from single superphosphate rock, which contains more than 55 percent of available phosphoric acid.

Potassium Fertilizers
Potassium Fertilizers

Potassium is a mineral that helps plants grow and thrive. Plants need potassium to help them make protein, which is essential to their growth and development. Potassium is also essential for producing carbohydrates, which provide energy for plant growth and development.

Potassium is most often applied as a fertilizer in the form of potash, muriate of potash, sulfate of potash, and polyhalite. These compounds contain potassium chloride, which helps to leach out other salts in the soil. Potassium oxide (K2O) is another potassium fertilizer used by gardeners who wish to add more nutrients to their gardens without adding extra salt.

1. Monopotassium phosphate (MAP)

This potassium fertilizer is made from phosphoric acid and potassium carbonate, which are then combined with water to create a liquid solution. It can be absorbed by the plant’s roots and used immediately when applied to the soil.

2. Potassium sulfate

This type of potassium fertilizer is made by reacting sulfuric acid with potassium hydroxide, or potassium hydroxide with sodium hydroxide (NaOH), in an aqueous solution. Once mixed, these chemicals react together to form sodium sulfate (NaSO4). The sodium sulfate is then reacted with calcium carbonate powder at high temperatures to form calcium sulfate dihydrate or gypsum (CaSO4•2H2O). This final compound can be used as a plant fertilizer because it contains 20% potassium by weight! It also has no odor when dry but has a strong scent when wet due to its high alkalinity content, which makes it toxic.

Types of Fertilizer According to the Size

1. Nutrient or macronutrient fertilizers:

These fertilizers contain nutrients necessary for plant growth, including nitrogen, phosphorous, and potassium (NPK). These are often referred to as macronutrients because their plants need them in large quantities.

2. Micronutrient or secondary fertilizer:

These fertilizers contain trace elements that are also essential for plant growth. These include iron, zinc, copper, and boron.

Organic Fertilizers

These are natural products that are derived from plants or animals. Common examples include manure, compost, and seaweed. Organic fertilizers can be high in nitrogen, phosphorus, potassium, or a combination of these three elements. They’re great for promoting healthy soil structure and helping plants grow strong roots.

Different Types of Organic Fertilizers

Organic fertilizers are based on natural substances, such as animal and plant waste. You can use them for the soil or plants and trees.

According to the chemical substances, organic fertilizers can be classified into several types:

  • Humus
  • Compost
  • Manure
  • Blood Meal
  • Bone Meal
  • Kelp Meal
  • Egg Shells
  • Biochar

Humus is a black or brown substance composed of decayed plant and animal matter. It contains small amounts of nitrogen, phosphorus, potassium, and other elements. Humus is formed by the action of microorganisms on dead plants, animals, and other organic matter in the soil. The humus in soil improves its texture and water-holding capacity.


Compost is garbage decomposed by microorganisms to turn it into a dark brown or black substance with a pleasant earthy smell. Composting involves mixing different materials in layers to improve their quality for fertilizer and soil conditioner use. Composting occurs in large piles called windrows or compost heaps that are turned over periodically to keep air flowing through them so that all parts get aerated evenly.


This mixture of animal waste and straw has been composted. It is rich in nutrients and can be used directly on plants or mixed with soil.

Blood Meal

This is dried blood from livestock, usually cows. It contains nitrogen, which helps to promote growth.

Bone Meal

This is a byproduct of meat processing plants, made from bones crushed into powder form. Bone meal contains phosphorus, which helps plants grow roots and stems, as well as flowers and fruit.

Kelp Meal

Kelp is a type of seaweed that can be dried and powdered into a fertilizer rich in potassium (K). This type of fertilizer helps fruit trees grow bigger fruits with fewer seeds inside them.

Egg Shells

crushed eggshells are rich in calcium and other nutrients, which plants need for healthy growth.


Biochar is an agricultural product produced from burning organic materials at high temperatures in an oxygen-limited environment with limited combustion products produced during the pyrolysis process, which produces charcoal with higher carbon content than wood charcoal resulting from an incomplete combustion process during charcoal making process while achieving energy efficiency during pyrolysis process compared.

How Fertilizer Works?

How Does Fertilizer Work

When you use fertilizer, you are trying to help plants grow as much as possible by adding nutrients to their environment. Fertilizers contain macronutrients like nitrogen and phosphorous, which plants need in large amounts to survive. Plants also need micronutrients like copper and zinc, which are essential for plant growth but not required in large quantities.

Plants take these nutrients from the soil through their roots, but they only absorb them in certain forms. For example, plants can only take nitrogen from nitrates or ammonium ions. This means that before you can use fertilizer to help grow plants, it must be broken down into its elemental forms by microbes found in the soil. The microbes digest the fertilizer and release the minerals into their environment where they can be used by plants and other organisms like bacteria and fungi that live there too!

The process of breaking down fertilizer can take anywhere from one day up to several months, depending on how much you add at once as well as how hot it is outside during the summer months when temperatures rise above 70 degrees Fahrenheit (21 degrees Celsius), which causes soil microbes’ activity levels to increase significantly due to the increased heat energy available for use. Again, maybe not so much if your garden doesn’t get much sun!

Uses of Fertilizers

Uses of Fertilizers

Fertilizers are used for a variety of reasons, including:

Improving soil quality

Fertilizers can help improve the quality of soil in your garden by adding nutrients and minerals to it. This will allow you to grow healthier plants with less effort.

Growing larger crops

Fertilizers can also help you grow larger crops than you otherwise would be able to, which is particularly useful if you’re growing food for yourself or a small family.

Preventing nutrient deficiency in plants

When applied correctly, fertilizers can prevent nutrient deficiencies in plants so that they don’t suffer from stunted growth or other problems caused by nutrient deficiencies.

Increasing the rate of plants growing

Although not all types of fertilizer can increase the rate at which plants grow, some do. For example, organic fertilizers such as compost and manure will help your garden grow faster than if you were to use no fertilizer at all.

Increasing the yield of crops such as fruits and vegetables

Fertilizers can increase the amount of fruit or vegetables you get from each plant and increase your overall output per plant.

Importance of Fertilizer

Fertilizers are a necessity for the agriculture industry. Without them, crops would fail, and food would become scarce. Fertilizers combine nitrogen, phosphorus, and potassium to boost crop growth. The three chemicals are essential for plants to grow, but they cannot be found in soil naturally. To ensure that plants have all the nutrients they need, farmers must add fertilizer to their soil before planting their crops.

You can make fertilizer from animal or human waste (typically sewage), manure from animals like horses or cows, or synthetic chemicals like ammonium sulfate or urea hydrochloride. The amount of fertilizer used will depend on what plants you want to grow and how much you want to spend on fertilizer each year. If you’re starting with farming or want to grow just one type of crop (like corn), animal manure might be best for your budget since it’s free!


So which is the best fertilizer to use? It depends upon what you want. If you increase the quantity of a crop, then simple fertilizers like NPK will be a good choice. However, mixed fertilizers will be better if you want to maximize the quality of your produce.

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