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Fertiliser handling and safety
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- IFA Protect & Sustain Program: Product Stewardship
- Physical properties of fertilisers
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How to increase your onion yield
Onions and garlic have a relatively low nutrient uptake efficiency, due to their shallow root system characterised by thick roots with very few and short hairs. So to achieve optimum yields it is important to apply nutrients as close as possible to the rooting zone in frequently and readily available forms.
Check if your onions have a nutrient deficiency
Identify and diagnose if your onions are suffering from nutrient deficiencies and learn how to control or correct the deficiency. Choose a nutrient below to learn more about the symptoms of its deficiency in onions and its effect on crop growth and development.
How correct nutrient management can affect your onions
Improving onion quality
It is particularly important to ensure that environmental and growth constraints do not limit onion bulb yield, and thereby quality. Taste and pungency are important elements in determining the quality of onion crops.
Increasing onion bulb size
Planting density is a very important management factor in determining bulb size in onion crops. In addition, good crop nutrition can help growers to achieve a desired diameter. Nitrogen, potassium and phosphorus are essential to influence onion bulb size.
Improving onion bulb firmness
Firmness is a critical characteristic of onion crops, particularly in dry bulb onions which are stored for long periods. Growers can influence bulb firmness by applying balanced nutrition.
How to make better informed nutrient decisions
Our collection of tools help you to make better nutrient decisions in making the right fertiliser choice and applying the right amount of nutrients at the right time and in the right place so that the crop yield and quality can be maximised whilst still keeping costs in check, avoiding over-fertilisation and protecting the environment.
