Organic Fertilizer Production: A Step-by-Step Guide

As the world becomes more aware of the environmental impact of conventional farming practices, the demand for sustainable and organic alternatives continues to rise. One key aspect of organic farming is the utilization of organic fertilizers.

Organic fertilizer production offers numerous benefits for farmers, gardeners, and the ecosystem as a whole. By following a systematic approach to producing organic fertilizer, you can utilize natural processes and materials to create nutrient-rich amendments that enhance plant growth and productivity.

If you are eager to embrace organic practices and contribute to a greener future, this step-by-step guide to organic fertilizer production is the perfect starting point. So let’s delve into the details and uncover how it is done.

Organic Fertilizer Production

Key Takeaways 

  • Organic fertilizer production begins with raw material pretreatment, where compost and other organic nutrients are mixed together to form a composting mix.
  • Composting is the process of breaking down organic materials into nutrient-rich soil amendments.
  • Granulation is an important step that creates uniform organic fertilizer pellets or granules.
  • Drying is crucial to remove excess moisture from the granules, and cooling helps stabilize the granules and reduce odors.
  • Screening is done to remove impurities and clumps from the fertilizer pellets or granules.

Raw Material Pretreatment

Organic fertilizer production starts with raw material pretreatment. The organic materials used for fertilizer production can vary depending on the type of fertilizer being produced, but typically compost and other organic nutrients are mixed together to form a homogeneous mix. This mix is known as the composting mix, and it is important for the quality of the fertilizer.

The composting mix typically consists of plant waste, livestock and poultry manure, straw, rice husk, biogas sludge, food waste, and urban waste. All of these ingredients are mixed together to form a uniform mixture that is ready for composting. After the composting mix has been created, it is ready to be composted.

Composting: Process and Benefits

Composting is the practice of breaking down organic materials into a nutrient-rich soil amendment through microbial decomposition. This organic matter, such as food waste, plant and animal waste, and garden residue, can take on various forms, from piles of material in an open area to a sealed container.

The composting process has numerous benefits. Composting helps to reduce the amount of green waste that gets sent to landfills, reduces the need for chemical fertilizers, and helps aerate and rejuvenate soil. It also helps preserve water resources, since compost increases the water-holding capacity of soil, thus reducing runoff and erosion.

Composting occurs in two stages: thermophilic and mesophilic. In thermophilic composting, microorganisms break down the material quickly at higher temperatures (140°F – 160°F). This stage typically lasts 1-2 weeks. The second stage is mesophilic composting, where the temperature is lower (90°F – 110°F) and the process takes longer (2–6 weeks).

Compost is ready to use when it has a pleasant, earthy smell and is dark brown in color. Finished compost can also contain beneficial bacteria and fungi depending on the type of composting method. Finished compost is an excellent soil amendment and can be used to improve the soil structure, root penetration, and water-holding capacity.

Organic Fertilizer Production

Compost Mixing, Drying, and Crushing

Compost mixing, drying, and crushing are essential steps in the organic fertilizer production process. Compost needs to be mixed with other organic materials, dried to the correct humidity and crushed into a uniform texture in order to create an effective fertilizer.

Compost mixing is done by adding the necessary organic ingredients such as animal waste, plant waste, and other organic materials to the compost prior to beginning the composting process. The ingredients are mixed together with a mechanical mixer, or occasionally with a tractor or manual labor.

After the compost is mixed, it must be dried. The drying process helps remove excess moisture from the compost and ensures that the organic material is ready for granulation. Two methods are used for drying compost: natural and mechanical. Natural drying is done by leaving the compost in the open air until it reaches the desired moisture content, while mechanical drying uses an oven or dryer to accelerate the process.

Once the compost is dry, it needs to be crushed into a uniform texture. This is done by using a crusher machine, which breaks up the compost into small pieces. The crushed compost is then ready to be granulated.

Compost mixing, drying, and crushing are important steps in the organic fertilizer production process and need to be done correctly in order to create a high-quality product. By taking the time to ensure that these steps are done properly, you can be sure that you are creating an effective and safe fertilizer.


Organic Fertilizer Production

Granulation is an important step in the organic fertilizer production process. It involves using machinery to create uniform organic fertilizer pellets or granules from a mixture of organic materials, such as livestock and poultry manure, straw, rice husk, biogas sludge, food waste, and urban waste.

The granulation process typically consists of three stages. The first stage involves mixing the organic materials with water and other additives, if needed. The second stage is the granulation process itself, where the mixture is fed into an extruder that creates the desired shaped granules. The final stage is drying the granules to remove any excess moisture.

Different types of machines are used for granulation, depending on the type and size of the organic materials being processed. Common types of machines used for granulation include disc granulators, drum granulators, organic fertilizer polishing machines, and rotary dryers.

Granulating is an important step in organic fertilizer production as it ensures uniformity in the fertilizer granules, allowing for better absorption and retention of nutrients in plants.

Drying Process and Equipment

Drying is an important part of the organic fertilizer production process, as it removes excess moisture from the granules. During the drying process, heated air is circulated through the granules to speed up the evaporation process. The heat also sanitizes the granules and reduces the risk of contamination or spoilage.

The most widely used equipment for drying organic fertilizer is a rotary dryer, which consists of a rotating drum filled with organic fertilizer granules. The dryer is heated to a certain temperature, which evaporates the excess moisture from the granules. The processed organic fertilizer is then cooled before it is ready for packaging and distribution.

Other types of drying equipment include belt dryers, tray dryers, tunnel dryers, and spray dryers. Each type of dryer has its own advantages, so it is important to consider which type of dryer is most suitable for your particular needs. Generally, belt dryers are used for large-scale production, while tray dryers and tunnel dryers are more suitable for small-scale production.

For optimum performance, it is important to maintain the appropriate temperature and airflow in the drying process. This will ensure that the organic fertilizer is properly dried without damaging its nutritional value or reducing its shelf life.

Cooling During Organic Fertilizer Production

The cooling process is a crucial step in organic fertilizer production. It is used to cool the granules that have been produced, to reduce their temperature, and make them easier to handle. This ensures the stability of the granules and also helps to reduce dust formation and caking.

The cooling process is done with the help of specialized equipment such as rotary drum coolers or fluidized bed coolers. These coolers use air or cold water to cool the organic fertilizer granules, depending on the type of cooler used. The cooled fertilizer granules can then be stored for further processing or packaged for sale.

In addition to cooling the organic fertilizer granules, the cooling process also reduces any odors associated with the organic materials used. This is especially important for products that are to be sold to consumers, as strong odors can be off-putting and may even cause a potential customer to choose another product instead.

Cooling is a relatively simple and straightforward process in organic fertilizer production, but it is an important step that should not be overlooked. In order to ensure the best quality product, the organic fertilizer should be cooled properly using systems designed specifically for this purpose.


The screening process is another important step in the production of organic fertilizer. This is done to remove any impurities or clumps from the fertilizer pellets or granules. The process is done using special machinery, including a vibrating screen, rotary screen, and air or liquid separator.

The vibrating screen works by shaking the fertilizer granules through a mesh which then separates the particles from each other. This helps to remove any large clumps that may have formed during the previous processes. The rotary screen is used to sort and separate materials according to size. The air or liquid separator is designed to remove any remaining waste material or foreign objects.

Screening is essential to ensure that the organic fertilizer is of the highest quality and free of any contaminants. It also helps to reduce costs by reducing the amount of material that needs to be discarded. By having a high-quality product, farmers will be able to get the most out of the fertilizer and maximize their yields.

Tips To Get You Started

For readers wanting to explore organic fertilizer production further, a range of resources are available. To help get you started, here are some actionable takeaways from this guide:

  • Understand the different steps in organic fertilizer production, from mixing compost with other organic nutrients through to commercial organic fertilizer screening.
  • Research small-scale organic fertilizer plants and their capabilities and consider investing in one for your business.
  • Consider implementing bio-organic fertilizer technology to reduce synthetic fertilizer use and increase rice yields.
  • Utilize the resources provided in this guide for further reading.


By utilizing readily available organic materials, such as food waste, plant residues, and animal manure, farmers can transform what was once considered waste into a valuable resource. The process of composting and fermentation not only generates nutrient-rich organic fertilizer but also helps recycle organic matter and reduce the volume of waste sent to landfills.

Organic fertilizer production is a sustainable and environmentally friendly approach that empowers farmers and gardeners to nourish their plants while minimizing harm to the ecosystem. This step-by-step guide has shed light on the intricacies of producing organic fertilizer, providing valuable insights for those seeking to adopt this practice.

So, let us harness the power of nature’s own processes to nourish our crops, protect our soils, and build a brighter, greener future for generations to come.


What is organic fertilizer?

Organic fertilizer is a type of fertilizer derived from natural sources, such as plant matter, animal waste, or compost, that provides essential nutrients to plants in a slow-release and sustainable manner.

Why should I use organic fertilizer instead of synthetic fertilizers?

Organic fertilizers improve soil health, enhance nutrient availability, promote beneficial microbial activity, and minimize environmental impact. They also contribute to long-term soil fertility and sustainable agriculture practices.

Can I produce organic fertilizer at home?

Yes, you can produce organic fertilizer at home using various organic materials and composting techniques. It allows you to recycle kitchen scraps and yard waste while creating a nutrient-rich fertilizer for your plants.

What organic materials can I use to make organic fertilizer?

Common organic materials used for making organic fertilizer include compost, manure (from herbivores), bone meal, fish emulsion, seaweed, kitchen scraps, grass clippings, and agricultural residues

How do I start producing organic fertilizer?

To begin producing organic fertilizer, collect organic materials, choose a composting method (such as aerobic or vermicomposting), create the right composting conditions (proper moisture, aeration, and temperature), and monitor the process until the materials decompose into nutrient-rich compost.