Sementeira
Can be done directly in the final location or in a tray with subsequent transplanting (most common) to the final location after 3 or 4 months. The crop can be grown in rows, keeping 10 cm between plants and 30 to 45 cm between rows.
Stuttgarter Onion
Saqueta Individual
€1,50
Sale price
€1,50
Regular price
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Stuttgarter Onion
An early onion with round, flattened bulbs, firm brownish skin and white flesh with a pleasant aroma — a versatile choice in the kitchen and the garden.
About the variety. The Stuttgarter produces compact bulbs of 100–120 g, with its characteristic flattened shape and firm skin that promotes good storage. A medium-sized plant, up to 40 cm, also suitable for container growing.
€1,50
Sale price
€1,50
Regular price
Itinerário técnico
Como cultivar stuttgarter onion?
Um guia de cultivo passo a passo, da sementeira à colheita.
pH ideal 5.9 and 6.5
Solo
This crop prefers fertile, well-drained soils; those with a sandy-clay texture are the most suitable. In heavy-textured soils, ridges or rows should be raised to ensure adequate drainage. Soil pH should be between 5.9 and 6.5.
Clima
Prefers mild climates without excessive heat, requiring good light and avoiding shaded spots.
Fertilização
A base fertilisation should be carried out by incorporating compost into the soil.
Rega
Onion is a crop highly sensitive to water deficits and excesses, so the first irrigation should be carried out right after transplanting. Due to its shallow root system, watering must be frequent, with particular attention during bulb swelling. When the leaves begin to dry out, a sign of maturity, irrigation should be discontinued. A drip system can therefore be a good option, also preventing the leaves from staying wet and encouraging disease development.
Controlo de Infestantes
Mulching with organic materials is a good option, as it reduces competition between weeds and the crop and also helps retain soil moisture. The absence of adequate weed control leads to lower yields and pest harbouring. Thermal weeding is also a valid alternative, though more costly.
Controlo de Pragas
Root-knot nematodes and thrips are pests of this crop. Root-knot nematodes can be controlled through crop rotations, biofumigation and soil solarization. For thrips control, border plants favourable to anthocorid beneficial insects (such as marigolds) should be used, along with biological control using predatory mites and anthocorids.
Doenças
Alternaria blight and downy mildew are diseases of this crop. To control Alternaria blight, wide plant spacing can be used, along with copper-based fungicides (such as Bordeaux mixture) if necessary. Downy mildew can be controlled through wide plant spacing, appropriate crop rotations, and copper-based fungicides if necessary.
Colheita
In a refrigerated environment with a relative humidity of 65 to 70%, onions can be kept for several weeks. Frequent inspections should be carried out and any bulbs showing signs of poor condition should be removed from storage.