Even if the soil conditions are almost optimal for the requirements of the asparagus, you can increase the harvest yield with the right fertilizer. Would you like to know which means the vegetables need at what time and which substances you should rather keep your hands off? Find out the answers here.
Asparagus is one of the heavy feeders
Why is fertilizing necessary?
On the one hand, green asparagus is a heavy feeder. This means that the vegetable is one of the varieties with an extremely high fertilizer requirement. In addition, green asparagus sprout again every year, although changes of location are extremely rare. In order to maintain the nutrient content over the years, regular fertilizer application is important.
tips
It is best to carry out a soil analysis in winter. Based on the result, you can optimally put together your fertilizer for the coming spring.
Which fertilizer at what time?
Until harvest, green asparagus goes through different growth phases in which it needs different nutrients. You should adapt these to the seasons.
The preparation of the ground
Before you even sow your asparagus, it is already necessary to prepare the soil. To do this, use a green manure made from chopped up plants, which you mix under the substrate in late autumn.
Fertilize during the growth phase
You can already use fertilizers from specialist retailers. But if you have prepared your bed well, this is usually not necessary. It is sufficient if you only rake ripe compost or horn shavings (32.93€) between the asparagus rows. However, the roots must not come into contact with the fertilizer.
Fertilize during the dormant phase
Once you have harvested your asparagus, fertilize your bed with asparagus fertilizer. If you don't find the smell annoying, you can use nettle manure. After removing the foliage in late fall, mix compost into the soil. A layer of mulch reduces weed growth.
Suitable and unsuitable fertilizers
Suitable fertilizers
- mature stable dung
- mature compost
- nettle manure
- horn shavings
- mulch
- shredded leaves and plants
Unsuitable fertilizers
Make sure you always use mature compost. Fresh manure attacks the roots.