Close this search box.

How to Use Bat Guano As A Fertilizer?

Unlock the power of bat guano for your garden: an eco-friendly, nutrient-rich fertilizer for lush growth and sustainable farming. Learn more now!

Bat guano is recognized as a historically famous fertilizer. It originates from ancient civilizations such as the Incas, who were the first ones to identify its agricultural-based benefits. Its nutrient content is highly rich in potassium, phosphorus, and nitrogen, which makes it one of the best resources for highly fertile soil and crop yields.

Bat guano is an organic fertilizer that contributes to the well-being of the environment through sustainable development, biodiversity, soil health, etc. These are used exclusively today by both small and large scale farmers and gardeners. This article shows the necessary dosage, benefits, etc, of this fertilizer. 

Stationery design showing close up of a gardeners hand using a small shovel with bat guano to fertilize soil educational theme on organic gardening

About Bat Guano

Bat guano (excreta of bats) are naturally sourced from caves, roosts, and covered areas where the bats usually gather and rest. Further, these excrements are collected to make organic fertilizers that are high in fertility content. 

Its rich composition in nitrogen, potassium, phosphorus, and other micronutrients makes it a highly valued fertilizer. However, the quality of formulation depends largely on the bat species and their diet.

Common bat types that contribute to this fertilizer are:

  • Fruit bats
  • Vampire bats
  • Roost
  • Cave bats.

Now that you know what bat guano is, let’s see how you can use it.

Methods to Use Bat Guano as Fertilizer

Bat guano is used widely for the protection and natural growth of plants. It has gained popularity for its rich nutrients and sustainability, which will be a blessing for future generations. Some popular methods of using this fertilizer are

1. Direct Application

Bat guano can be added directly to the soil. It is a common practice that involves evenly spreading this fertilizer across the field or the garden area. After spreading, it is applied directly to the soil in many ways, and the most common ones are mixing or tilling. 

This method is considered one of the most important ways of using bat guano. It also ensures that the nutrients of the soil have reached every part of the soil.



It can be easily applied

Applying more than required can harm plants.

Applied directly to the base of plants

Adding in the soil can be challenging for nutrient distribution

Long-term benefits for plants

Plants that need a quick pump can suffer due to the slow release of nutrients.

2. Bat Guano Tea

Bat guano tea is a method where bat guano is infused or mixed with water to make a tea or an extract that is high in nutrition. 

This formulation of bat guano with water can be used in the form of a foliar spray, which is further injected or added into the roots of the plants to provide them with nutrients.



Quick root absorption of nutrients

Requires lots of time and effort to get prepared

Deeper root development

They deplete from the soil at a faster rate

Beneficial for seedlings who need future growth and development. 

Bat guano tea will serve no purpose if not used immediately.

3. Seed Dressing

Plant growth and nourishment can be made easy with bat guano. Add this fertilizer directly to the plant hole before adding the seedling. 

This would ensure that your plant gets nutrition and has healthy development from the beginning. Make sure to refer to its product direction for the required quantity.



Gives constant nutrition to seedlings or young plants.

It isn’t used for mature plants

Allows beneficial bacteria to grow in the soil.

If not applied properly, it can destroy or burn your plants.

Bat guano gives rise to microbes that build the plant’s natural defense system.

It Isn’t used much, unlike direct application or guano tea extract.

Stationery design featuring gardeners hands with gloves holding a trowel and soil for seed dressing on a wooden surface with a paper bag of soil nearby

Safety Measures to be Kept in Mind

Certain safety measures must be kept in mind in order to avoid any dangerous crisis. These are provided under:

1) Use Breathing Gear

Handling bat guano or any fertilizer holds a risk of releasing harmful bacteria or dust. While using this fertilizer, make sure to wear a mask or any breathing gear to avoid infections.

2) Secure your Hand

Your hands have direct contact with your mouth. Make sure to wear gloves when you are using bat guano as a fertilizer.

3) Maintain Hygiene

After you have completed the fertilization process, make sure to wash your hands properly with soap and water in order to maintain hygiene and be safe from diseases.

4) Use Processed Guano

Processed guano is a better alternative to fresh guano. This is because fresh guano consists of pores of Histoplasma capsulatum, a fungus that causes respiratory problems. 

Another reason is the bacteria present in fresh guano, which is harmful to the skin. Therefore, processed guano is much safer to use.

5) Storing Area

Bat guano should always be stored in a cool and dry container. This would protect this fertilizer from moisture and pest attacks. 

Optimal Dosage of Bat Guano

There isn’t any specific dosage of bat guano as they depend upon several factors. Commercially processed bat guano consists of a product label that specifies all the necessary recommendations about using the bat guano fertilizer. 

Adding less bat guano than the recommended dosage can be safer than adding more. In order to fulfill any deficiencies in the nutrients, you can always opt for soil testing.

Soil testing can be performed through different tools, such as a simple soil pH tester or multi-nutrient test kit, which helps you understand the soil requirements. 

Stationery design showing hands with gloves pouring bat guano from a bucket for optimal dosage in soil enrichment against an outdoor backdrop

Environmental Benefits of Using Guano

The environmental benefits of using guano are highly varied and contribute significantly to the environment and the balance of the ecological system. They are written below:

  • It provides a healthy and nutritional boost to plants.
  • Bat guano improves soil structure, promoting moisture retention and overall soil health.
  • Bats, the source of guano, feast on pesky insects, protecting your crops without harsh chemicals.
  • Unlike synthetic fertilizers, it is a renewable resource.
  • Bat guano is safe for the environment and causes less pollution.

Stationery design featuring close up of young plant sprouts in fertile soil highlighting environmental benefits of using guano as a natural fertilizer

Limitations of Bat Guano

While bat guano poses various benefits for the environment, there are certain limitations that are to be considered before using bat guano.

Nutrient Deficiency

It lacks various essential nutrients such as iron, zinc, and magnesium. Therefore, it isn’t a complete nutrient fertilizer.

Highly Concentrated

Bat guano is strong and highly concentrated. Applying them to more than the recommended dosage can be harmful to your plants.  

Bit Expensive

Compared to compost or readily available manure, bat guano can be expensive. This would be troublesome for small-scale users.

Not Easily Accessible

Bat guano is not easily accessible and requires a long search for the same. This can be challenging for the gardeners or the plant caretakers. 

Bat Guano: A Sustainable Choice

Bat guano stands as the most sustainable choice for protecting the ecological balance. It is a healthy choice for plants because it improves the overall soil quality and water retention. Its nutrient value not only makes the plant more healthy but also makes them naturally developed.

Along with its nutrient quality, bat guano has also served the purpose of pest control naturally. This is because bats are insect feeders and prevent pests from destroying the environment and agriculture. Choose the best for your plant’s needs and health. Check out our website to find the most suitable fertilizer for your plants. 

Lasted Articles for You

Green grass and vibrant flowers basking in the sunlight creating a picturesque scene of natural beauty

What Is Superphosphate: Do I Need Superphosphate In My Garden

Discover how superphosphate can boost garden health, enhancing growth, blooms, and root systems. Perfect for phosphorus-depleted soils.

A woman holds a basket of vegetables and apples showcasing the benefits of using organic fertilizers to increase crop yield

The Best Organic Fertilizers to Double Your Harvest

Discover the best organic fertilizers to enhance your soil and double your harvest. Learn about compost, manure, bone meal, and more for sustainable gardening.

Golden retriever happily running through grass with ball in mouth

Can Lawn Fertilizer Hurt My Pet?

Discover how to protect your pets from harmful lawn fertilizers with our guide on safe, pet-friendly products and practices.