In order to maintain soil fertility, certain soil organisms are essential. Those are the beneficial organisms and their presence in the soil is a must in order to keep our garden soil in best condition. Beneficial bacteria and fungi prefer well-aerated and acidic soils but will generally tolerate a wide pH. Some fungi, for example mycorrhizae - are able to live symbiotically with living plants, creating a relationship that is beneficial to both, helping plants roots by improving the take-up of nutrients from the soil.

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