Onions

Yara's crop nutrition programmes for onions can help you to achieve excellent crop performance and maximise the yield and quality of all allium crops.

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.

Nutrition programmes based on crop nutrient needs are key to influencing dry matter content, firmness and storability as well as taste and pungency, all important factors in determining the quality of onion crops.

Firmness is a critical characteristic of onion crops, particularly in dry bulb onions which are stored for long periods.

Onions and garlic have a relatively low nutrient uptake efficiency, so it is important to apply nutrients as close as possible to the rooting zone frequently and in readily available forms.

Fertilizer programs starting early during establishment and vegetative growth are needed to ensure nutrients don’t limit onion bulb quality.

It is particularly important to ensure that environmental and growth constraints do not limit bulb formation and bulb quality.