What Nutrients are in Horse Manure?

Horse manure is a highly sought-after component within gardens thanks to its highly versatile nature and how it can help gardeners grow healthy plants. One aspect that makes well-rotted horse manure and muck a great addition to any garden is its nutrient-rich properties.

In this gardener’s guide, we outline what nutrients are prominent in horse manure and how they can help your plants grow in a healthy, sustainable manner.


What are the main nutrients in horse manure?

Horse manure has 3 macronutrients – nitrogen, phosphorus and potassium, 3 secondary nutrients – calcium, magnesium and sodium, as well as other micronutrients.

As a rule of thumb, a tonne of well-rotted manure contains 5kg (11lbs) of nitrogen, 3.6kgs (8lbs) of potassium and 0.9kg (2lbs) of phosphorus.


How do the nutrients in horse manure help gardeners?

Organic horse manure acts as a brilliant natural fertiliser, soil conditioner and source of nutrients, which are all essential for growing plants and keeping your garden in a healthy, sustainable manner.


How does nitrogen within horse manure help in the garden?

The element nitrogen (N), is a vital macronutrient for plants to function and is a key component of amino acids, which form the foundations of plant enzymes and proteins.

Proteins make up the structural materials of all living matters (including plants) and the enzymes facilitate the vast array of biochemical reactions within a plant. Nitrogen is also an element of the chlorophyll molecule, which enables the plant to capture UV energy by photosynthesis, driving plant growth and health

Nitrogen is even present in the plant roots as proteins and enzymes help regulate water and nutrient intake.


How does phosphorus within horse manure help in the garden?

The purpose of phosphorus within plants is extremely important. The main function of phosphorus within plants and general gardening is that it helps a plant convert other nutrients within horse manure into usable foundations which allows plants to grow – nitrogen and potassium.

You need to be careful with the application of horse manure in your garden, because if you add too much phosphorus into your topsoil, it can run off into the water supply and become a major pollutant.


How does potassium within horse manure help in the garden?

Potassium, often called potash in the gardening world, helps plants use available water that resists drought and enhances the growth of plants. Potassium is especially important if you grow fruit or vegetables within your garden, as water can make up the majority of the crop.

If you’re wanting to grow or lay new grass turf, be sure to mix in horse manure with topsoil as the potassium will allow the roots to absorb water better, giving your grass roots a strong foundation.


Where can I buy organic horse manure?

Based in Hambledon, Hampshire, we supply well-rotted horse manure rich in nitrogen, potassium and phosphorus for all those who are within Hampshire and further surrounding towns and cities. Alsoils+ have been servicing domestic and trade customers for over 35 years with the highest quality horse manure, leaving you safe in the knowledge that we can deliver for your needs.

Our well-rotted horse FYM is both high-quality and affordable for all purposes. With its highly versatile and low maintenance nature, they are the ideal solution for a variety of gardening and landscaping needs.

About the Author

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Alsoils

The Alsoils Team

For more than three decades, Alsoils has been a trusted name in delivering superior soil, compost products and offering landscaping services. Based in Hampshire, Alsoils caters to a diverse clientele, including both homeowners and businesses. Our team are experts in all things gardening, so you can be sure you get the very best advice for topsoil, compost, manure and so much more!

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Based on 14 reviews
Mark Belshaw
Mark Belshaw
2023-02-17
Ordered 2 bulk bags of manure on Wednesday, late afternoon and all was delivered by Friday lunch time. Great quality product and excellent delivery turnaround.
Charles Smith
Charles Smith
2022-06-30
Excellent, from order to delivery. 10 tonnes of loose load top soil delivered within a few days. Best price and the 10mm screened soil is great quality. Thank you
Lesley Barry
Lesley Barry
2022-05-15
Excellent product ordered 4 bags of top soil the driver was so accommodating as we have a very long driveway. The customer sevice was excellent. Thank you.
David Robberts
David Robberts
2021-05-13
Excellent product at a sensible price from a local supplier. Staff are friendly and willing to help: I asked if just one bag of topsoil could be delivered quickly and it arrived next day! Great service.
Mark Hibberd
Mark Hibberd
2018-06-11
Smooth execution of the transaction and delivery. Very helpful phone call and conversation. Ordered three bags of Border Blend topsoil. Paid by Paypal. They delivered, on the specified date, carefully, exactly where I wanted the bags placed. All in all, a very pleasing purchase. The topsoil was excellent and had been very carefully prepared. No lumps. Would definitely recommend and I will use again. Everyone I spoke to was nice and helpful.
David Stamp
David Stamp
2015-09-18
Ordered topsoil on Tuesday came by Friday at the exact time quoted. Was WAY cheaper than anywhere else (by about £15 per bag) and was dropped off via a crane on back of the lorry, not by pallet which most of the other places use. Soil was fine and dry. Brilliant !