How to increase 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 frequently and in readily available forms.
Macronutrient uptake in onions
Major nutrient removal figures show that nitrogen and potassium are the nutrients needed in relative greatest quantities in onion and garlic crops. They are fundamental for achieving high marketable yields.
High rates of nitrogen are needed to satisfy crop demand. However it is important not to over-apply nitrogen, particularly in bulb onions, as this can delay maturity, soften bulbs and lead to storage rots.
Micronutrient uptake in onions
While much lower levels of micronutrients are needed to satisfy yield and quality onion crop production, the correct balance of these trace elements is essential.
The key micronutrients needed in greatest quantities are boron, and iron. These have an influence on yield and quality. Zinc also pays a role in seed germination.
Recommended Yara fertilisers for onions
Related articles
How to increase onion bulb size
Onion bulb size is mostly influenced by planting density, however good crop nutrition, particularly nitrogen, phosphorus and sulphur are essential to achieve good onion bulb size.
How to increase onion bulb weight
A balanced crop nutrition program can help to improve overall yield by increasing onion bulbs weight.
How to influence onion bulb number
The number of onions produced is influenced mainly by plant density so it is important to manipulate sowing density and nutrition to provide maximum yields of a desired bulb size. A balanced crop nutrition is important to help to reach yield potentials.
Onion nutrient deficiencies
Identify and diagnose if your onions are suffering from nutrient deficiencies and learn more about the symptoms and causes and how to control or correct the deficiency
Onion crop nutrition programme
Yara's fertiliser recommendations and crop nutrition programmes for onions can help you to achieve excellent crop performance and maximise the yield and quality of all allium crops.
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