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Which fertilisers to use with peat-free compost

2 Minute Read
When growing in peat-free, selecting the right type of fertilisers becomes crucial for ensuring optimal plant growth and vitality.

Using fertilisers when growing in peat-free

Peat-free compost is known to have lower nutrient content compared to traditional peat-based compost. To address this challenge and provide plants with essential nutrients, various types of fertilisers are commonly used in peat-free growing. Let’s explore some of the key types:

Organic fertilisers

Organic fertilisers are derived from natural sources such as animal based products, compost, and plant materials. They offer a sustainable and environmentally friendly option for peat-free growing. Organic fertilisers gradually release nutrients, enriching the soil and promoting long-term soil health. They improve the soil structure, increase microbial activity, and enhance nutrient availability, ensuring a steady supply of nourishment to plants throughout their growth cycle.

Liquid fertilisers

Liquid fertilisers have gained popularity in peat-free growing due to their convenience and rapid nutrient availability. These fertilisers are typically concentrated liquids that contain a balanced mix of essential nutrients. They can be easily applied through various methods such as drip irrigation, foliar spraying, or fertigation systems. Liquid fertilisers provide a quick and direct nutrient supply to the plant roots, promoting efficient uptake and utilisation.


Controlled-release fertilisers

Controlled-release fertilisers, also known as slow-release or timed-release fertilisers, are designed to provide a steady and controlled release of nutrients over an extended period. These fertilisers are coated or encapsulated, allowing for a gradual breakdown and nutrient release. Controlled-release fertilisers offer the advantage of reduced leaching and minimised risk of nutrient runoff, ensuring efficient nutrient utilisation by plants while minimising environmental impact.

Water-soluble fertilisers

Water-soluble fertilisers are highly soluble in water, allowing for easy and efficient nutrient uptake by plants. These fertilisers come in powder or granular form and can be dissolved in water to create a nutrient-rich solution. They offer precise control over nutrient concentration and are often used in hydroponic or soilless growing systems. Water-soluble fertilisers provide a rapid and targeted nutrient supply, promoting vigorous growth and optimal plant development.

Mineral fertilisers

Mineral fertilisers, also known as synthetic or inorganic fertilisers, are manufactured chemically to provide specific nutrient compositions. These fertilisers offer precise control over nutrient ratios, allowing growers to address specific nutrient deficiencies effectively. Mineral fertilisers are available in various formulations, such as granules or pellets, and release nutrients quickly to support rapid plant growth.


In peat-free growing, the selection of fertilisers depends on the specific needs of the crops, nutrient requirements, and cultivation methods. A combination of these fertilisers, tailored to the crops and growing conditions, can help ensure optimal nutrient supply, healthy plant development, and successful yields in peat-free compost-based systems.

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Tags: Fertiliser, Peat-free

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