- It is about the students getting an understanding of the importance of soil degradation in agriculture and horticulture, says Hans Nilsson, plant cultivation teacher.

Twelve high school in natural sciences participate, from Liljaskolan in Vännäs in the north to Svalöfs gymnasium in the south.

Jenny Höckert, researcher at SLU RådNu in Skara.

- The purpose of the Swedish Championships in degradation is to increase interest and knowledge about how important soil health is, says Jenny Höckert, researcher at the Swedish University of Agricultural Sciences, SLU RådNu in Skara, one of the initiators of the competition.

Challenge to find again

When the students return in week 34, the notes will be dug up and the competition decided.

There is a big challenge - to find the pieces again.

If it has gone really well, there is not much left.

Anna-Karin Krijger, plant cultivation teacher at Sötåsen's nature management high school

- We want the students to have a concrete experience of what good soil health is and what good and bad degradation is, says Jenny Höckert, researcher at SLU RådNu who together with LRF is behind the competition.

See when the students at Sötåsen dig down their competition entry in the video above.