Is Chicken Manure Good for Growing Carrots?

When it comes to allotments, soil health is a top priority for growing quality produce.  If your allotment has poor soil, as mine did, you have a lot of work on your hands to improve it.

Good soil health can be achieved through a variety of methods, including the use of fertilizers such as chicken manure. Chicken manure is a popular garden organic fertiliser to improve soil health and increase crop yields. However, many gardeners wonder if chicken manure is good for growing carrots. In this article, we will explore the benefits and drawbacks of using chicken manure for growing carrots.

chicken manure by miracle grow

Benefits of Using Chicken Manure for Growing Carrots

Chicken manure is an excellent source of organic matter, essential for soil health. It contains high levels of nitrogen, phosphorus, and potassium, which are important nutrients for plant growth. Nitrogen helps plants grow strong and healthy leaves, phosphorus is necessary for root growth, and potassium is vital for flower and fruit production. Carrots, in particular, require high levels of phosphorus and potassium, making chicken manure an ideal fertilizer.

chemical breakdown pf chicken maure pellets
Image from RHS

In addition to its nutrient content, chicken manure also improves soil structure and water-holding capacity. It helps soil retain moisture, which is crucial for carrot growth. When added to soil, chicken manure can also increase soil aeration and improve drainage, which is essential for healthy root growth.

Drawbacks of Using Chicken Manure for Growing Carrots

While chicken manure is a beneficial fertilizer, it also has its drawbacks. Fresh chicken manure is high in nitrogen, which can burn plants if applied directly to the soil. It also contains high salt levels, which can build up in the soil over time and cause plant problems.

In addition, chicken manure can contain pathogens such as salmonella and E. coli, which can harm humans if ingested. To avoid these risks, it is important to compost chicken manure before using it as a fertilizer. Composting reduces the risk of pathogen contamination and helps break down the high nitrogen content of fresh chicken manure. Or buy chicken manure pellets such as Miracle Grow, which are fully treated.  Other popular chicken manure brands include Westland, Wilko, and NPK.

How to Use Chicken Manure for Growing Carrots

To use chicken manure as a fertilizer for carrots, it is essential to compost it first. Composting can take several months, so it is best to start early in the season. You can compost chicken manure or mix it with other organic materials such as leaves, straw, or grass clippings.

To compost chicken manure, mix it with other organic materials in a compost bin or pile. Keep the compost moist and turn it regularly to ensure it breaks down evenly. After several months, the compost should be dark and crumbly, with a sweet, earthy smell. This indicates that it is ready to be used as a fertilizer.

When using chicken manure compost fertilizer for carrots, apply it to the soil before planting. Mix it into the top few inches of soil, careful not to apply too much.

A general rule of thumb is to apply no more than one inch of compost per planting season. This will give your carrots the necessary nutrients without overwhelming them with too much nitrogen.


In conclusion, chicken manure is a good fertilizer for growing carrots, as it contains high levels of phosphorus and potassium, essential for healthy root growth and fruit production. However, it is important to compost chicken manure before using it as a fertilizer to reduce the risk of pathogen contamination and prevent nitrogen burn. By following the guidelines outlined in this article, you can use chicken manure to improve soil health and increase your carrot yields.