One of the main factors limiting yields in organic farming is insufficient nitrogen supply. Growing leguminous crops is the best way to get nitrogen into the soil in organic farming, but crop residues and manure are also good ways of doing this. But too much nitrogen or nitrogen at the wrong time of the cycle can cause more harm than good, so it’s very important to understand the needs of each crop you are growing and the expected mineralisation rates of the fertiliser you apply. Deficiencies in potassium, phosphorus and sulphur may also limit yields and need to be considered in the fertilisation strategy.

On this page, you can find tools and resources that can help you design a sound nutrient management plan as well as discuss the topic with others.

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