There are quite a few easy ways to plant and grow onions. Suitable for an enclosed space cultivation of green onions by the bridge method... This is a great option to get the maximum yield from the smallest area.
What is the bridge landing method? On the prepared plot of land, you need to put the bulbs in such a way that there are no gaps between them, that is, close. A feature of this method is that the bulbs are not buried in the ground, but only slightly pressed into the soil. The main thing is not to overdo it and not to deepen the onion too much, since the soil becomes denser and this prevents the development of the root system of the onion.
Most suitable for bridge planting onions - samples... Planting material should be no more than 3-5 cm in diameter. It is estimated that up to 8 kg of green onions are harvested from one square meter.
Growing green onions by bridge does not imply special care of the plant. Onions need timely weeding and watering. The soil should always be kept moist, this is very important for the growth of greenery and its taste.
To obtain a larger yield, mineral fertilizers can be applied: 20 g of ammonium nitrate, superphosphate and potassium chloride are diluted in 10 liters of warm water and left for a day. The first time fertilizers are applied one week after planting, then another seven days later.
The optimum temperature for the growth of greenery is in the range of 16 - 22 degrees. Already after 30 - 40 days, you can harvest the first crop.