Organic Fertiliser
Organic fertilisers are derived mainly from plant or animal materials. They consist of carbon-based compounds that are slowly broken down in the soil by micro-organisms. This gradually releases the nutrients they contain, making them available to plants.
Organic fertilisers are often by-products or waste products from horticulture and agriculture that are put to good use. This helps close nutrient cycles and makes them particularly sustainable.
Typical examples of organic fertilisers include:
- slurry
- liquid manure
- manure
- horn shavings
- guano
- composted plant remains
Compared with mineral fertiliser, organic fertiliser acts more slowly but has a longer-lasting effect. Its nutrients are less prone to leaching, as they are only released through the activity of soil organisms. Organic fertiliser therefore not only feeds plants but also boosts soil fertility and supports an active soil life.
Organic fertiliser is especially popular in home and kitchen gardens, as it is often produced right there in the form of garden compost, making it inexpensive and readily available.